U.S. patent number 3,563,584 [Application Number 04/855,156] was granted by the patent office on 1971-02-16 for bullet catch.
Invention is credited to Gilbert Schwartzman.
United States Patent |
3,563,584 |
Schwartzman |
February 16, 1971 |
BULLET CATCH
Abstract
A one-piece integrally formed bullet catch preferably formed of
nylon comprising an open ended cylindrical casing having an
inwardly extending flange at one end and an outwardly extending
flange at the other end. Helical springs are integrally formed with
the inwardly extending flange and with a hemispherical head which
extends partially through the opposite end and is resiliently held
with the integral springs under compression by a swaged tapered
retainer member which has a circular line of contact with the
hemispherical head and which is resiliently engaged with the
hemispherical head to hold the hemispherical head against
accidental movement.
Inventors: |
Schwartzman; Gilbert
(Scarsdale, NY) |
Family
ID: |
25320487 |
Appl.
No.: |
04/855,156 |
Filed: |
September 3, 1969 |
Current U.S.
Class: |
292/71;
292/74 |
Current CPC
Class: |
E05C
19/066 (20130101); Y10T 292/0877 (20150401); Y10T
292/0878 (20150401) |
Current International
Class: |
E05C
19/06 (20060101); E05C 19/00 (20060101); E05c
005/00 (); E05c 019/02 () |
Field of
Search: |
;292/71,74,(PLP),70,73,75,14--16 ;49/419
;70/(X1),(X2),(X3),(X4) |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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|
|
|
|
|
|
474,975 |
|
Jan 1915 |
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FR |
|
484,216 |
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Jun 1952 |
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CA |
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Primary Examiner: Champion; Marvin A.
Assistant Examiner: Wolfe; Robert L.
Claims
I claim:
1. An integral one-piece bullet catch for a movable closure having
a recess, and a fixed element having a catch member provided with a
depression, comprising an open ended cylindrical casing in said
recess, said casing having an inwardly extending flange at one end
and an outwardly extending flange at the opposite end thereof, a
hemispherical head adapted to seat in said depression, said head
extending partially through said opposite end, spring means
integral with said head and said inwardly extending flange, and a
tapered resilient retainer member resiliently frictionally and
clampingly engaging said head with said spring means under
compression and with said retainer member being pressed
outwardly.
2. A bullet catch according to claim 1, wherein said member is
circular and has circular contact with said head.
3. A bullet catch according to claim 1, wherein said springs means
include a plurality of separate spaced helical springs for rotating
said head upon movement thereof.
4. A bullet catch according to claim 1, wherein said member is
circular and has circular contact with said head, said spring means
including a plurality of separate spaced helical springs for
rotating said head upon movement thereof to enhance engagement with
said member to inhibit accidental opening due to vibration.
Description
This invention relates to a latching device, and more particularly
to a novel one-piece bullet catch.
Various types of latching devices including bullet catches have
been devised. These devices are usually formed of metal and are
made of numerous pieces having separate springs, ball detents,
casings, end walls, and the like. The separate manufacture of each
of these elements and their assembly has proven costly. Further,
the use of metal devices often results in the wearing of the wood
or metal cabinets and the decorative finishes thereof.
In carrying out the object of the present invention which avoids
the disadvantages of the prior art metal bullet catches and like
latching devices, an integral one-piece bullet catch molded of
nylon or other suitable synthetic plastic material is accomplished,
it being recognized that the bullet catch can be colored all the
way through so as to match the decorative finish of the cabinet or
like device in which the bullet catch is employed, and which can be
made more inexpensively while being adapted to withstand accidental
disengagement due to vibrations and the like, because of a novel
arrangement of a swaged tapered retainer member resiliently
frictionally clampingly holding the hemispherical spring-pressed
head.
Still further objects and features of this invention reside in the
provision of a bullet catch that may be molded of nylon or like
material, which does not require any assembly steps and only a
single swaging operation to finish the product, which is effective
in use, and highly attractive in appearance.
These, together with the various ancillary objects and features of
the present invention, which will become apparent as the following
description proceeds, are attained by this bullet catch, a
preferred embodiment of which is illustrated in the accompanying
drawing, by way of example only, wherein:
FIG. 1 is an exploded sectional view of the bullet catch comprising
the present invention;
FIG. 2 is a horizontal sectional view through a door and associated
member illustrating the manner in which the bullet catch functions;
and
FIG. 3 is a view similar to FIG. 2 but showing the bullet catch in
a closed position.
With continuing reference to the accompanying drawing, wherein like
reference numerals designate similar parts throughout the various
views, reference numeral 10 generally designates a closure such as
the door of a kitchen cabinet 12 or the like with which the bullet
catch generally designated by reference numeral 14 and comprising
the present invention is adapted to be utilized.
The cabinet 12 has a latch member 16 disposed in a suitable recess
18 therein, the latch 16 being provided with a concave depression
20. The latch member 16 may be molded from suitable material such
as nylon or the like and may be secured to the kitchen cabinet 12
by means of any suitable fastening device or by bonding.
The closure 10 is provided with recess 22 therein which has an
enlarged portion 24 immediately adjacent the edge 26 of the door 10
forming a shoulder 28. The bullet catch 14 is adapted to be
disposed in the recess 22 and secured therein by bonding, force
fitting, or by fastening, and includes a cylindrical casing 30
having a flange 32 at its inner end with which a plurality of
helical springs 34 are integrally formed. Also integral with the
springs 34 is a hemispherically shaped catch head 36 which extends
outwardly of the casing 30. The casing 30 is open at both ends and
a peripheral flange 38 extends about the forward end of the casing.
This flange is adapted to seat against the shoulder 28 when the
bullet catch is installed in the recess 22. A swaging tool is used
to form a swaged portion 40 which is pressed to partially close the
forward opening in the cylindrical casing 30 and to provide a
circular line of contact 42 with the sphere 36. The swaged portion
40 is resilient so that an unusual result is obtained in that the
force of the springs 34 will be sufficient to press the
hemispherical head 36 against the resilient force exerted by the
tapered heat swaged retainer member 40 which, as can be seen, is of
a circular configuration terminating at a circular ring of contact
42. This circular contact will cooperate with the force exerted by
the springs 34 to maintain the hemispherical head 36 in its
extended position and against accidental jarring of the door
because of both frictional and clamping engagement with the tapered
member 40 when in a closed position, thereby enhancing the closure
provided when the hemispherical head 36 engages in the depression
20 as shown in FIG. 3. The helical springs 34 serve to rotate said
head as it is urged into engagement with the member 40 to enhance
the frictional clamping engagement and resistance to accidental
opening due to vibration and the like.
The entire bullet catch assembly 14 may be molded out of nylon and
after molding the only step necessary to be done is a heat-swaging
step necessary to form the tapered member 40.
A latitude of modification, substitution and change is intended in
the foregoing disclosure, and in some instances, some features of
the present invention may be employed without a corresponding use
of other features.
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