U.S. patent number RE28,793 [Application Number 05/605,288] was granted by the patent office on 1976-05-04 for end attachment for watch band and self-contained component for use in making the same.
This patent grant is currently assigned to Textron Inc.. Invention is credited to Stephen F. Bert.
United States Patent |
RE28,793 |
Bert |
May 4, 1976 |
End attachment for watch band and self-contained component for use
in making the same
Abstract
An end attachment for watch bands which permits use of a watch
band with wrist watches having different spacings between their
attachment lugs. The end attachment includes a self-contained
component which includes a generally tubular member, coiled
compression spring means and a pair of generally tubular inserts
which are slideable within the generally tubular member. One of the
inserts has its inner end positioned against one outer end of said
spring means, the other insert has its inner end positioned against
another outer end of said spring means and stop means on the
generally tubular member act upon the inserts to limit their
outward sliding movements under the action of the spring means. The
attachment also includes an ornamental top shell having a generally
tubular portion attached about the generally tubular portion of the
self-contained component and a member extending laterally therefrom
with means for attaching the top shell to the end of a watch band.
The top shell may be deeply impressed with the design of the links
of the watch band to which the end attachment is to be attached
without interfering with the sliding movements of the inserts
within the generally tubular member of the self-contained
component.
Inventors: |
Bert; Stephen F. (West Warwick,
RI) |
Assignee: |
Textron Inc. (Providence,
RI)
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Family
ID: |
27050321 |
Appl.
No.: |
05/605,288 |
Filed: |
August 18, 1975 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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Reissue of: |
491141 |
Jul 25, 1974 |
03897612 |
Aug 5, 1975 |
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Current U.S.
Class: |
24/265B;
224/164 |
Current CPC
Class: |
A44C
5/14 (20130101); A61K 31/00 (20130101); Y10T
24/4718 (20150115) |
Current International
Class: |
A44C
5/00 (20060101); A44C 5/14 (20060101); A61K
31/00 (20060101); A44C 005/18 () |
Field of
Search: |
;224/4D,4E
;24/73WW,265WS,265B |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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2,044,864 |
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Feb 1971 |
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FR |
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2,015,412 |
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Oct 1971 |
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DT |
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Primary Examiner: Griffin; Donald A.
Claims
I claim:
1. An end attachment for watch bands adapted to be mounted between
spaced lugs of a wrist watch comprising
a generally tubular member formed from a strip of metal,
coiled compression spring means within said tubular member,
a pair of generally tubular inserts adapted to slide within said
generally tubular member, each insert being formed from a strip of
metal and each insert having a generally rectangular slot formed
between the edges of said strip which has an open end and an inner
end formed by the edges of a pair of tabs which extend inwardly
towards each other from the adjacent ends of said strip,
a pair of tabs, one adjacent to one end of the strip from which
said generally tubular member is formed and the other adjacent to
the other end thereof, the ends of said tabs extending respectively
into said rectangular slots and engaging the edges of said tabs of
said inserts, thereby to stop outward movements of said inserts by
said coiled spring means, and
an ornamental top shell, said top shell comprising a generally
tubular portion surrounding at least the upper and end portions and
part of the lower portion of said generally tubular member,
means for securing said generally tubular portion of said top shell
to said generally tubular member, and
a member extending laterally from the generally tubular portion of
the top shell including means for attaching it to the end of a
watch band.
2. An end attachment according to claim 1 wherein said generally
tubular member, coiled compression spring means and pair of
generally tubular inserts consist of a self-contained component and
the generally tubular portion of the ornamental top shell is
applied to the exterior of said generally tubular member.
3. An end attachment according to claim 1 wherein said ornamental
top shell is impressed with the design of the links of the watch
band to which the end attachment is to be attached, whereby the
ornamental design impressed in said top shell does not interfere
with the sliding movements of said inserts within said generally
tubular member.
4. An end attachment according to claim 1 wherein said generally
tubular member comprises stop means substantially midway between
its ends for engaging said coiled compression spring means.
5. An end attachment according to claim 4 wherein said coiled
compression spring means comprises a pair of coiled compression
springs, one extending outwardly from one side of said stop means
and the other extending outwardly from the other side thereof.
6. An end attachment according to claim 4 wherein the ends of said
strip of metal from which said generally tubular member is formed
comprise oppositely positioned cutout portions substantially
intermediate its ends and said stop means comprises a tab extending
from the side of one of said cutout portions thereby dividing said
one cutout portion into a pair of cutout portions and said means
for securing said generally tubular portion of said top shell to
said generally tubular member comprises a pair of spaced tabs which
extend into said pair of cutout portions.
7. An end attachment according to claim 1 wherein the tab adjacent
to one end of the generally tubular member extends in one direction
near one end of the strip of metal and the tab adjacent to the
other end of the generally tubular member extends in the opposite
direction near the other end of the strip of metal.
8. A self-contained component for making an end attachment for
watch bands adapted to be mounted between spaced lugs of a wrist
watch comprising
a generally tubular member formed from a strip of metal,
a pair of tabs, one adjacent to one end of said strip and the other
adjacent to the other end thereof, the ends of said tabs being
bendable towards the interior of said tubular member,
coiled compression spring means within said tubular member,
.[.and.].
a pair of .Iadd.hollow .Iaddend.generally tubular inserts adapted
to slide within said generally tubular member, each insert being
formed from a strip of metal and each insert having a generally
rectangular slot formed between the edges of said strip which has
an open end and an inner end formed by the edges of a pair of tabs
which extend inwardly towards each other from the adjacent ends of
said strip, .Iadd.and
the outer surface of said self-contained component being devoid of
any lateral projection, .Iaddend.
whereby said component can be assembled by an automatic machine
which inserts said coiled compression spring means into said
tubular member and then simultaneously inserts said .Iadd.hollow
.Iaddend.inserts at opposite ends of said tubular member with the
open ends of their rectangular slots pointing outwardly and moves
them inwardly compressing said spring means until the inner ends of
said rectangular slots pass beyond said tabs of the generally
tubular member and then bends the ends of said tabs into said
longitudinal slots, whereby the inner edges of said tabs of the
generally tubular member engage the edges of said tabs which form
the inner ends of the rectangular slots of the inserts, thereby to
stop outward movements of said inserts by said coiled springs.
9. A component according to claim 8 wherein the tab adjacent to one
end of the generally tubular member extends in one direction near
one end of the strip of metal and the tab adjacent to the other end
of the generally tubular member extends in the opposite direction
near the other end of the strip of metal.
10. A component according to claim 8 which also comprises stop
means extending inwardly from said generally tubular member
substantially midway between its ends for engaging said coiled
compression spring means.
11. A component according to claim 10 wherein said coiled
compression spring means comprises a pair of coiled compression
springs, one extending outwardly from one side of said stop means
and the other extending outwardly from the other side thereof.
12. A component according to claim 10 wherein said stop means
comprises a tab extending from one end of said strip of metal
substantially midway between its ends.
13. A component according to claim 10 wherein the ends of said
strip of metal from which said generally tubular member is formed
comprise oppositely positioned cutout portions substantially midway
between their ends and said stop means comprises a tab extending
from one side of one of said cutout portions substantially
intermediate its ends thereby dividing said one cutout portion into
a pair of cutout portions.
Description
BACKGROUND OF THE INVENTION
Wrist watch bands are often sold separate from the watches to which
they are to be attached. One reason for this is that styles in
watch bands change more rapidly than styles in watches and watch
cases and, during the life of the watch, wearers therefore
frequently use several different watch bands. Another reason is
that the preference of the user for watch bands of different types
such as plastic, metal, snake chain, buckle secured, or expansible
may change from season to season or at the whim of the person
concerned.
One problem presented to the manufacturer of watch bands sold
separately from watches is that the watch case lugs between which
the watch band end attachments are to be secured are not uniformly
spaced in all watches. The watch band manufacturer therefore has
been forced to make watch bands having a variety of widths of end
attachments so as to fit various watch sizes or else the jeweler
from whom the watch band is bought must perform delicate and time
consuming operations on the end attachment to make it fit a
particular watch. These tasks are expensive for the watch band
manufacturer and for the retail dealer.
There have been many proposed solutions of the problem over a long
period of time.
In one group of prior art patents the elements of the end
attachment of the watch bands must be removed, and/or replaced,
and/or filed by the retail jeweler to cause the end attachment to
fit watches having different distances between the lugs. This is a
troublesome and time consuming task for the retail jeweler. Such
patents include the following U.S. patents:
Patent No. Date Inventor ______________________________________
1,836,772 December 15, 1931 Rossman 2,883,727 March 12, 1957 Obst
3,118,209 January 21, 1964 Vollet 3,675,284 July 11, 1972 Rieth
3,678,544 July 25, 1972 Bert
______________________________________
In another group of prior art patents the part of the end connector
which directly encircles the slideable width adjusting elements
cannot be impressed with deep designs to match the design of the
links of the watch band without interfering with slideability of
the width adjusting elements. Such patents include the following
U.S. patents:
Patent No. Date Inventor ______________________________________
1,713,533 May 21, 1929 Jones 2,653,369 September 25, 1953 Rodrigues
3,160,938 December 15, 1964 Minutoli 3,477,107 November 11, 1969
Nadeau 3,705,456 December 12, 1972 Bruner 3,740,804 June 26, 1973
Levinger ______________________________________
While patent to Fachon U.S. Pat. No. 2,775,861 recognizes the
desirability of providing a continuation of the design of the links
of the watch band to the end connector it solves the problem by
providing a separate filler member between the spring bar and the
watch case and the spring bar interrupts the continuity of the
design. Furthermore in this patent no means are provided for
adjusting the width of the end connector to fit between differently
spaced lugs of watch bands.
In a still further group of patents spring actuated members are
provided for automatically adjusting the width of the end connector
to fit between differently spaced lugs of watches but the end
connectors are very expensive to manufacture and are incapable of
using self-contained generally tubular components which can be
automatically assembled by machinery prior to assembling an
ornamental top shell of the end connector to the self-contained
component. Such patents include the following U.S. patents:
Patent No. Date Inventor ______________________________________
2,713,445 July 19, 1955 Speck 2,807,855 October 1, 1959 Rodriguez
3,217,374 November 16, 1965 Sang 3,030,686 April 24, 1962 Burkhardt
3,477,107 November 11, 1969 Nadeau 3,707,744 January 2, 1973 Manzo
______________________________________
From the foregoing prior art it is apparent that there has been a
recognized long-felt need for an end attachment for watch bands for
use in attaching a watch band between attachment lugs of wrist
watch cases which is economical to manufacture and assemble, can be
deeply impressed with the design of the links of the watch band,
does not require the retail dealer to stock either watch bands
having end attachments of different widths or additional
replacement parts and can be quickly and easily adapted by the
retailer to fit between the lugs of watches which are spaced
different distances apart without removing and/or replacing and/or
filing elements of the end connector.
BRIEF SUMMARY OF THE INVENTION
One object of this invention is to provide an end attachment for a
watch band adapted to be mounted between lugs of wrist watch cases
which are spaced different distances apart and which is economical
to manufacture and assemble.
Another object is to provide such an end attachment in which an
element of the end attachment can be provided with deeply impressed
designs to match the designs of the links of the watch band without
interfering with free slideability of the width adjusting
elements.
A further object is to provide a self-contained component for
making an end attachment for a watch band which comprises a
generally tubular member, coiled compression springs and generally
tubular inserts which can be assembled automatically.
Another object is to provide a new end attachment for a watch
band.
Further objects and advantages of the invention will be apparent to
persons skilled in the art from the following description taken in
conjunction with the accompanying drawings.
In general, the end attachment of this invention includes a
generally tubular member formed from a strip of metal, and coiled
compression spring means within the tubular member. A pair of
generally tubular inserts are provided which are adapted to slide
within the generally tubular member. Each insert is formed from a
strip of metal and has a generally rectangular slot formed between
the edges of the strip. This slot has an open outer end and an
inner end which is formed by the edges of a pair of tabs which
extend inwardly towards each other from the adjacent ends of the
strip. A pair of tabs is provided, one adjacent to one end of the
strip from which the generally tubular member is formed and the
other adjacent to its other end and the ends of these tabs extend
into the rectangular slots respectively and engage the edges of the
tabs of the inserts, thereby to stop outward movements of the
inserts by the coiled springs.
The end attachment also includes an ornamental top shell which
comprises a generally tubular portion surrounding at least the
upper and end portions and part of the lower portion of the
generally tubular member, means for securing the generally tubular
portion of the top shell to the generally tubular member, and a
member extending laterally from the generally tubular portion of
the top shell which includes means for attaching it to the end of a
watch band.
In the preferred embodiment the generally tubular member, the
coiled compression spring means and pair of generally tubular
inserts are formed as a self-contained component and the generally
tubular portion of the ornamental top shell is applied to the
exterior of the generally tubular member of the component.
In another preferred embodiment the ornamental top shell is
impressed with the deeply impressed design of the links of the
watch band to which the end attachment is to be attached and,
because the generally tubular member is between the inserts and the
top shell, the ornamental design impressed in the top shell does
not interfere with the sliding movements of the inserts within the
generally tubular member.
In a further preferred embodiment the generally tubular member
comprises stop means substantially midway between its ends for
engaging the coiled compression spring means.
In yet another preferred embodiment the coiled compression spring
means comprises a pair of coiled compression springs, one extending
outwardly from one side of the stop means and the other extending
outwardly from the other side of the stop means.
In a still further embodiment the ends of the strip of metal from
which the generally tubular member is formed comprises oppositely
positioned cutout portions substantially intermediate its ends and
the stop means comprises a tab extending from the side of one of
these cutout portions thereby dividing the cutout portion into a
pair of cutout portions. In this embodiment the means for securing
the generally tubular portion of the top shell to the generally
tubular member comprises a pair of spaced tabs which extend into
this pair of cutout portions.
Preferably the tab adjacent to one end of the generally tubular
member extends in one direction near one end of the strip of metal
and the tab adjacent to the other end of the generally tubular
member extends in the opposite direction near the other end of the
strip of metal so the generally tubular member is symmetrical
facilitating automatic assembly of the self-contained
component.
The self-contained component for making the end attachment includes
a generally tubular member formed from a strip of metal. A pair of
tabs is provided, one adjacent to one end of the strip of metal and
the other adjacent to the other end thereof, and the ends of these
tabs are bendable towards the interior of the generally tubular
member.
Coiled compression spring means is located within the generally
tubular member.
A pair of generally tubular inserts are adapted to slide within the
generally tubular member. Each insert is formed from a strip of
metal and has a generally rectangular slot formed between the edges
of the strip. This slot has an open outer end and an inner end
which is formed by the edges of a pair of tabs which extend
inwardly towards each other from the adjacent ends of the
strip.
This self-contained component can be assembled by an automatic
machine which inserts the coiled compression spring means into the
generally tubular member then simultaneously inserts the inserts at
opposite ends of the generally tubular member with the open ends of
their rectangular slots pointing outwardly and moves them inwardly
compressing the spring means until the inner ends of the
rectangular slots pass beyond the tabs of the generally tubular
member and then bends the ends of the tabs into the longitudinal
slots, so that the inner edges of the tabs of the generally tubular
member are adapted to engage the edges of the tabs which form the
inner ends of the rectangular slots of the inserts when the inserts
are moved outwardly predetermined distances by the springs, thereby
to stop further outward movements of the inserts by the coiled
springs.
In a preferred embodiment of the component the tab adjacent to one
end of the generally tubular member extends in one direction near
one end of the strip of metal and the tab adjacent to the other end
of the generally tubular member extends in the opposite direction
near the other end of the strip of metal.
In a further preferred embodiment the generally tubular member
comprises stop means substantially midway between its ends for
engaging the coiled compression spring means.
In yet another preferred embodiment the coiled compression spring
means comprises a pair of coiled compression springs, one extending
outwardly from one side of the stop means and the other extending
outwardly from the other side of the stop means.
The stop means preferably comprises a bendable tab which extends
from one end of the strip of metal substantially midway between its
ends.
Preferably the ends of the strip of metal from which the generally
tubular member is formed comprises oppositely positioned cutout
portions substantially midway between their ends and the stop means
comprises a tab extending from one side of one of the cutout
portions substantially intermediate its ends thereby dividing the
cutout portion into a pair of cutout portions.
It will be apparent to persons skilled in the art that this
invention has solved the above described long-felt need and
satisfied the above described objects.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a top plan view showing two ends of a ladies' watch band
with the end connectors in place between the lugs of a wrist
watch;
FIG. 2 is a perspective view of a spring bar of a wrist watch, an
end connector embodying this invention and a watch band with parts
of the watch band broken away and two of the link connecting means
of the watch band shown in dot dash;
FIG. 3 is an enlarged section taken on the line 3--3 of FIG. 2;
FIG. 4 is an enlarged bottom plan view of the end connector and
watch band shown in FIG. 2;
FIG. 5 is an exploded view looking at the bottom of the generally
tubular member, pair of coiled compression springs and pair of
generally tubular inserts in positions prior to assembly to form a
self-contained component for an end connector;
FIG. 6 is an enlarged perspective view looking at the bottom of an
assembled self-contained component for an end connector with one of
the inserts shown in dot dash at the right of the view;
FIG. 7 is a section taken on the line 7--7 of FIG. 6; and
FIG. 8 is a section taken on the line 8--8 of FIG. 4.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The end attachment embodying this invention is adapted to be
connected to any conventional wrist watch having two pairs of
laterally spaced lugs.
Referring to FIG. 1, 10 designates an expansion watch band secured
between the spaced lugs 12 of the watch 13 by the end attachment
14.
While the end attachment is adapted to be used with any
conventional watch band, it is shown attached to an expansion watch
band of the type shown in U.S. Pat. No. 3,307,348 to Vanover
although the watch band shown in the present application uses only
one spring in each link. Such a watch band comprises a row of top
links 15 (FIGS. 2 and 3) and a row of bottom links 16, each link
extending in a direction generally transverse to the length of the
linkage. There is a leaf spring 17 located in each link and the
links are held together by U-shaped connecting members 18 having
their legs positioned between the ends of the springs and the outer
walls of the top and bottom links respectively, thus to provide an
expansible linkage. The watch band is completed by securing
ornamental top shells 19 to the top links.
The end attachment 14 of this invention comprises a self-contained
component 20 (FIG. 6) which comprises a generally tubular member 21
formed from a strip of metal which is bent into tubular form to
provide a longitudinal slit 23 between adjacent ends of the strip.
A pair of tabs 24, 25 are formed from the strip of metal, one
adjacent to one end of the strip and the other adjacent to the
other end, the ends of these tabs being bendable towards the
interior of the tubular member 21. It will be observed that the tab
24 extends in one direction near one end of the strip of metal and
that tab 25 extends in the opposite direction adjacent to the other
end of the strip. With this construction, the generally tubular
member is symmetrical and automatic assembly of the self-contained
component is facilitated. However, the component can be less easily
assembled automatically if these tabs extend in the same direction
and in use it functions as well as the preferred embodiment.
Oppositely positioned cutout portions 27 are provided substantially
intermediate the ends of the generally tubular member 21 and a tab
28 extends inwardly from the side of one of these cutout portions
thereby dividing it into a pair of cutout portions 27A and 27B, the
function of which will be described below.
In the preferred embodiment, the self-contained component 20 also
includes a pair of coiled compression springs 30 which slide
loosely within the generally tubular member 21 and the inner ends
of which engage the tab 28 which is bent inwardly of the tubular
member 21 and forms stop means substantially midway between its
ends. However, in its broad aspect, the invention contemplates use
of a single coiled compression spring without stop means. In
another embodiment, a single coiled compression spring may be used
together with a tab such as the tab 28, the end of which is bent
inwardly between a pair of coils of the spring to act as stop means
to prevent longitudinal movement of the spring with respect to the
generally tubular member 21.
The self-contained component 20 also includes a pair of generally
tubular inserts 32 adapted to slide within the generally tubular
member 21. Each insert is formed from a strip of metal and is
provided with a generally rectangular slot 33 formed between the
edges of the strip of metal, this slot having an open end and an
inner end formed by the edges of the pair of tabs 34 which extend
inwardly towards each other from the adjacent ends of the strip of
metal.
In FIG. 5 the parts of the preferred self-contained component are
shown in positions ready to be assembled. They can be assembled by
an automatic machine which simultaneously inserts the springs 30 at
opposite ends of the tubular member 21 until their ends abut the
stop means 28, simultaneously inserts the inserts 32 at opposite
ends of the generally tubular member 21 and moves them inwardly to
compress the springs 30 until the inner ends of the rectangular
slots 33 pass beyond the tabs 24 and 25 of the generally tubular
member 21 and then the ends of these tabs are bent into the
longitudinal slots 33. The pressure against the outer ends of the
inserts 32 is then released whereupon the springs move the inserts
outwardly and the inner edges of the tabs 24 and 25 engage the
outer edges of the tabs 34, thereby stopping further outward
movements of the inserts by the coiled springs.
The cost of making the self-contained components and of assembling
them is extremely small and they are extremely durable.
The ornamental top shell 40 comprises a generally tubular portion
41 which surrounds at least the upper and end portions and a
substantial part of the lower portion of the generally tubular
member 21 of the self-contained component 20 and this top shell is
provided with a pair of tabs 43 which are bent into the openings
27A and 27B of the generally tubular member 21 thereby to secure
the top shell 40 to the self-contained component 20.
The top shell 40 is provided with a member 45 which extends
laterally from the generally tubular portion 41 as shown in FIGS.
2, 3 and 4. This member 45 is provided with a downwardly extending
flange 46 which is positioned between the end top link 15 of the
watch band and the top shell 19 of the adjacent link of the watch
band. The laterally extending member 45 is also provided with
downwardly extending flanges 47 which cover the ends of the end top
link 15. The flanges 47 are provided with a pair of inwardly bent
tabs 49 which engage the bottom wall of the end top link 15 of the
watch band thereby cooperating with the flange 46 to secure the top
shell 40 of the end link 15 to the watch band.
The generally tubular member 21 and the inserts 32 of the
self-contained component may be made of stainless steel or other
suitable metal. The top shell 40 may be made of gold-filled
material or stainless steel or other suitable material.
It will be observed that the top shell 40 is impressed with the
design of the top links of the watch band so that the design of the
watch band is continuous from end to end thereof including the end
connector. Because the inner surface of the generally tubular
portion 41 of the top shell 40 is in contact with the outer surface
of the generally tubular member 21 of the self-contained component
a deeply impressed design which carries through the metal of the
top shell may be impressed on the top shell without interfering
with the free sliding movement of the inserts 32 which are only in
contact with the inner surface of the generally tubular member
21.
In use the spring pin 60 of the watch is inserted through the
inserts 32 and coiled springs 30, one of the pins 61 is inserted in
one of the cavities 62 of a watch lug, then the inserts are slid
inwardly of the tubular member 21 further compressing the springs
and the other pin 61 is then inserted in the cavity of the other
watch lug and released, thereby securing the spring pin between the
lugs. The springs 30 urge the inserts outwardly so they abut the
inner sides of the lugs and the end attachment is secured in place
as shown in FIG. 1. They also centralize the end attachment between
the lug 12 of the watch. When a single coiled spring is used
instead of two springs and the tab 28 is bent inwardly between two
coils of the spring, the end attachment is also centralized between
the lugs of the watch by the tab and spring.
To remove the end connector, it is merely necessary to reverse the
above steps.
Thus the end attachment may be used with watches in which the lugs
are spaced different distances apart.
For men's watch bands a longer end attachment is provided.
End attachments embodying this invention may be used with snake
chain and buckle secured watch bands and watch bands made of
components of the type shown and described in copending application
Ser. No. 386,069 filed by Rieth and Hoffman Aug. 6, 1973, now U.S.
Pat. No. 3,844,136 dated Oct. 29, 1974. They may also be used with
all types of expansion watch bands such as lazy tongs or X type
watch bands and others which are well known to persons skilled in
the art.
It will be apparent to persons skilled in the art that this
invention has solved the above described long-felt need and
satisfied the above described objects.
While one desirable embodiment of the invention has been shown in
the drawings, it is to be understood that this disclosure is for
the purpose of illustration only and various changes in shape,
proportion and arrangement of parts as well as the substitution of
equivalent elements from those shown and described herein may be
made without departing from the spirit and scope of the invention
as set forth in the appended claims.
* * * * *