U.S. patent number 3,799,447 [Application Number 05/352,703] was granted by the patent office on 1974-03-26 for hose nozzle with improved insulating protector structure.
This patent grant is currently assigned to R. M. Smith, Inc.. Invention is credited to Glenn I. Beal.
United States Patent |
3,799,447 |
Beal |
March 26, 1974 |
HOSE NOZZLE WITH IMPROVED INSULATING PROTECTOR STRUCTURE
Abstract
A hose nozzle assembly comprising a hollow metal body including
an elongated hand grip portion having socket means on one end
thereof constituting a water inlet for connection with a hose end
and an elongated flow control element mounted in the hollow metal
body for movement into different positions for controlling the flow
of water from a water outlet in the body, a pair of insulating hand
grip protector parts disposable with respect to each other in
cooperating surrounding relation to the hand grip portion of the
nozzle body and fasteners for operatively fixedly securing the
parts in such surrounding relation, the parts in such surrounding
relation including (1) interior surfaces cooperating with
surrounding exterior surfaces of the hand grip portion of the body
to define a plurality of flow channels open to the atmosphere for
the dissipation of heat or cold by flow therethrough and (2)
exterior surfaces for manual engagement by an operator during use
so as to prevent manual contact with the hollow metal body when an
extremely hot or cold liquid is flowing therethrough.
Inventors: |
Beal; Glenn I. (Somerset,
PA) |
Assignee: |
R. M. Smith, Inc. (Somerset,
PA)
|
Family
ID: |
23386146 |
Appl.
No.: |
05/352,703 |
Filed: |
April 19, 1973 |
Current U.S.
Class: |
239/288.5;
239/530; 239/526 |
Current CPC
Class: |
B05B
9/01 (20130101); B05B 11/00 (20130101) |
Current International
Class: |
B05B
11/00 (20060101); B05B 9/01 (20060101); B05B
9/00 (20060101); B05b 011/00 () |
Field of
Search: |
;239/526,530,288,208.3,288.5 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: King; Lloyd L.
Attorney, Agent or Firm: Cushman, Darby & Cushman
Claims
What is claimed is:
1. In a hose nozzle of the type comprising a hollow metal body
including an elongated hand grip portion having socket means on one
end thereof constituting a water inlet for connection with a hose
end and a barrel portion extending from the opposite end of said
hand grip portion having a water outlet therein, an elongated flow
control element mounted in said barrel portion for movement into
different positions for controlling the flow of water from said
outlet, and an actuating member carried by said body in a position
to be manually engaged by an operator gripping said hand grip
portion and operatively connected with said element for effecting
the flow controlling movements of said element, the improvement
which comprises in combination therewtih a plurality of insulating
hand grip protector parts disposable with respect to each other in
cooperating surrounding relation to the hand grip portion of the
nozzle body and an adjacent section of said barrel portion, and
means for oepratively fixedly securing said parts in said
surrounding relation to said body, said parts in said surrounding
relation including (1) interior surfaces cooperating with
surrounded exterior surfaces of said body to define a plurality of
flow channels open to the atmosphere for the dissipation of heat or
cold by flow therethrough and (2) exterior surfaces for manual
engagement by an operator during use so as to prevent manual
contact with said hollow metal body when an extremely hot or cold
liquid is flowing therethrough.
2. The improvement as defined in claim 1 wherein said parts
comprise a pair of separate parts each molded of a high impact
thermoplastic material.
3. The improvement as defined in claim 2 wherein said material is
high density polyethylene.
4. The improvement as defined in claim 2 wherein said separate
parts are of mirror image configuration with respect to one another
and include abutting edges and said securing means comprises a
plurality of fasteners extending between said pair of separate
parts adjacent said abutting edges.
5. The improvement as defined in claim 1 wherein the hand grip
portion of said body is formed with a plurality of
circumferentially spaced longitudinally extending ribs defining
exterior surfaces other than said channel defining exterior
surfaces, said parts including interior surfaces other than said
channel defining interior surfaces engaging said exterior surfaces
of said ribs.
6. The improvement as defined in claim 5 wherein said part include
portions surrounding the socket means of said body, said socket
surrounding portions including a plurality of circumferentially
spaced longitudinally extending ribs on the interior thereof, said
ribs including surfaces other than said channel defining surfaces
engaging the exterior of said socket means.
7. The improvement as defined in claim 6 wherein said barrel
portion is formed with a plurality of circumferentially spaced
longitudinally extending ribs defining exterior surfaces other than
said channel defining exterior surfaces, said parts including
interior surfaces other than said channel defining interior
surfaces engaging said exterior surfaces of said ribs.
8. The improvement as defined in claim 7 wherein said parts
comprise a pair of separate parts each molded of a high impact
thermoplastic material.
9. The improvement as defined in claim 8 wherein said material is
high density polyethylene.
10. The improvement as defined in claim 9 wherein said separate
parts are of mirror image configuration with respect to one another
and include abutting edges and said securing means comprises a
plurality of fasteners extending between said pair of separate
parts adjacent said abutting edges.
11. In a hose nozzle of the type comprising a hollow metal body
means including an elongated hand grip portion having socket means
on one end thereof constituting a water inlet for connection with a
hose end and an elongated flow control element mounted in said body
means for movement into different positions for controlling the
flow of water from a water outlet in said body means, the
improvement which comprises in combination therewith a plurality of
insulating hand grip protector parts disposable with respect to
each other in cooperating surrounding relation to the hand grip
portion of the nozzle body means, and means for operatively fixedly
securing said parts in said surrounding relation to said body
means, said parts in said surrounding relation including (1)
interior surfaces cooperating with surrounded exterior surfaces of
said body means to define a plurality of flow channels open to the
atmosphere for the dissipation of heat or cold by flow therethrough
and (2) exterior surfaces for manual engagement by an operator
during use so as to prevent manual contact with said hollow metal
body when an extremely hot or cold liquid is flowing therethrough.
Description
This invention relates to hose nozzles and more particularly to an
improved temperature insulating protector structure for hose
nozzles which render the same more convenient to operate with
liquids which are very hot or very cold.
Conventional hose nozzles are frequently used to handle water at
temperatures which, when transmitted through the metal handle
portion of the nozzle body, make manual contact quite
uncomfortable, if not, in some cases, almost impractical, for
example, when using hot water to clean vehicles and other
instrumentalities. Moreover, it is well known that hose nozzles are
subjected to considerable abuse during normal use, such as being
dropped or thrown down on the pavement, etc. and the provision of
some means to protect the cast metal body from excessive damage
under such circumstances would prolong the useful life thereof.
Molded rubber protectors of this type have been proposed in the
patented literature, as for example, U.S. Pat. No. 2,657,098.
It is an object of the present invention to provide a hose nozzle
assembly including a temperature insulation protector structure
capable of obtaining the advantages noted above while at the same
time presenting the additional advantages of being economical to
manufacture and assemble. In accordance with the principles of the
present invention this objective is obtained by providing a
plurality of insulating hand grip protector parts which are
preferably molded of a high impact plastic material and capable of
being disposed in cooperating surrounding relation to the hand grip
portion of a hose nozzle body and of being fixedly secured in such
relation by the use of conventional fasteners, such that there is
provided between the exterior surfaces of the hose nozzle body and
the interior surfaces of the parts a plurality of flow channels for
dissipating the transfer of heat or cold from the cast metal body
to the manually gripped exterior surface of the protector
parts.
Another object of the present invention is the provision of a hose
nozzle assembly of the type described which is formed of a minimum
number of parts which can be simply and economically produced and
assembled and which are effective and efficient in operation once
assembled.
These and other objects of the present invention will become more
apparent during the course of the following detailed description
and appended claims.
The invention may best be understood with reference to the
accompanying drawings wherein illustrative embodiments are
shown.
In the drawings:
FIG. 1 is a side elevational view of a hose nozzle assembly
embodying the principles of the present invention;
FIG. 2 is an enlarged sectional view taken along the line 2--2 of
FIG. 1;
FIG. 3 is an enlarged sectional view taken along the line 3--3 of
FIG. 1;
FIG. 4 is an enlarged sectional view taken along the line 4--4 of
FIG. 1;
FIG. 5 is a side elevational view of the nozzle assembly with one
of the cooperating inuslating hand grip parts removed; and
FIG. 6 is a side elevational view of the removed part of FIG. 5,
illustrating the interior surface configuration thereof.
Referring now more particularly to the drawings, there is shown in
FIG. 1 thereof a nozzle assembly, generally indicated at 10,
embodying the principles of the present invention. The assembly 10
comprises, in general, a hose nozzle, generally indicated at 12, a
plurality of insulating hand grip protector parts, generally
indicated at 14, and fastening means, generally indicated at 16,
for securing the parts 14 in operative relation with the nozzle
12.
The preferred nozzle assembly 10, as shown, embodies a nozzle 12 of
the pistol grip type. However, it will be understood that the
principles of the present invention have applicability to any
nozzle providing a hollow body with a hand grip portion, including
straight nozzles and particularly nozzles of the type disclosed in
U.S. Pat. No. 26,013.
The preferred nozzle 12, as shown, includes a main body casting
having an elongated handle portion 18 and a barrel portion 20. The
elongated handle portion is hollow and is formed at its lower end
with a socket portion 22 which is interiorly threaded to receive a
male hose fitting. The opposite end of the handle portion
communicates with one end of the barrel portion. A spray adjusting
stem 24 is slidably mounted within the barrel portion for movement
into different positions of longitudinal adjustment to vary the
pattern of the spray issuing from the outlet orifice in the free
end of the barrel portion. In accordance with conventional
practice, the stem 24 extends outwardly of the rear end of the
barrel portion and is connected with one end of an actuating lever
26. The actuating lever is pivotally attached to the handle portion
as at 28, so that when the handle portion and actuating lever are
gripped in the hand of a user the spray can be adjusted by a
squeezing action in which the upper portion of the actuating lever
moves the stem longitudinally outwardly of the barrel portion. A
spring (not shown) within the barrel portion serves to resiliently
urge the stem longitudinally forwardly into a limiting position
closing off flow through the outlet orifice. A pivoted bale 30 is
provided for retaining the actuating lever in a depressed condition
corresponding to the desired spray, the desired spray being
determined by adjustment of a knurled nut 32 threadedly engaged on
the outer end of the stem 24. The above components of the nozzle
and the mode of operation are generally conventional.
A preferred form of nozzle 12 is illustrated in U.S. Pat. No. D
194,014 dated Nov. 6, 1962. This nozzle is preferred since there is
provided on the exterior thereof both in the handle portion 18 and
barrel portion 20 thereof a plurality of circumferentially spaced
longitudinally extending ribs 36 which cooperate with the interior
surface configuration of the hand grip protector parts 14, when
secured in operative relation with the nozzle by the fastening
means 16, to provide a plurality of flow channels 38 open to the
atmosphere for the dissipation of heat or cold by flow
therethrough. As shown, there is provided two hand grip protector
parts 14 which are separately molded of a suitable high impact
plastic material into configurations which bear a substantial
mirror image relation with respect to each other. Examples of
plastic materials which may be utilized include nylon,
polypropylene, acetal, and high density polyethylene, with the
latter being preferred.
With the preferred construction shown, the parts 14 are adapted to
be moved together into cooperating relation with each other in
surrounding relation to the handle or hand grip portion 18 of the
nozzle body and an adjacent section of the barrel portion 20. The
cooperation of the parts is provided by a pair of spaced end
surfaces or edges 40 formed in each part and disposed in a common
plane. Extending in generally concave relation between each pair of
end surfaces 40 is a plurality of longitudinally extending interior
rib engaging surfaces 42 spaced apart by intermediate
longitudinally extending interior channel defining surfaces. It
will be noted that each part 14 includes a lower socket surrounding
portion 44 which is provided interiorly with a plurality of
longitudinally extending socket engaging ribs 46 spaced apart by
longitudinally extending interior channel defining surfaces.
Extending in generally convex relation between each pair of end
surfaces 40 are exterior surfaces 48 shaped for manual engagement
by an operator during use so as to prevent manual contact with the
hollow metal body of the nozzle 12 when an extremely hot or cold
liquid is flowing therethrough. While the surfaces 48 may assume
any desirable and convenient configuration, as shown, the exterior
surfaces are configured generally to fit the contours of a hand
when assuming a pistol butt gripping position including ridges
which tend to maintain the fingers from crowding together during
actuation.
It will be understood that the parts 14 are assembled in
surrounding relation to the nozzle body by simply moving the same
on opposite sides thereof until the rib engaging surfaces 42 engage
the ribs 36 and the end surfaces 40 about one another. Each part 14
is formed with four fastener receiving openings 50 which extend
perpendicularly through the end surfaces 40 to the exterior surface
48. As shown, two openings 50 are formed in each part 14 within the
socket surrounding portion 44 thereof and the other two openings
are formed at positions corresponding to the juncture between the
handle portion 18 and barrel portion 20 of the nozzle. The rearward
end surfaces 40 of the parts 14 are formed with recesses 52 to
receive the pivot lug of the nozzle body and the sections
immediately thereabove are relieved to accommodate the aperture web
of the nozzle body such as disclosed in U.S. Pat. No.
3,674,138.
It will be understood, that the openings 50 of each part 14 aligns
with corresponding openings 50 in the other part when the latter
are disposed in surrounding relation to the nozzle body, as
aforesaid, so that the fastening means 16 may be inserted and
secured therein. The fastening means 16 may be of any conventional
construction and, as shown, are of the rivet type. The rivets 16
serve to fixedly secure the parts 14 in their operative position
with respect to the nozzle 12 so that the parts 14 can be subjected
to severe impacts during use without being dislodged from their
operative position thus serving to protect the nozzle body against
damage by such impacts or other abuse during use. Moreover, since
the exterior surfaces 48 serve to maintain the operator's hand out
of contact with the nozzle body, the operator is further protected
from any discomfort or inconvenience which would normally occur
when an extremely hot or cold liquid is flowing through the nozzle
body. Any extremes in temperature conducted directly to the metal
of the nozzle body can be dissipated to atmosphere by air flow
through the open channels 38. This arrangement effectively prevents
substantial temperature conduction from the nozzle body to the
parts 14 particularly since there is contact between the two only
along the ribs.
It thus will be seen that the objects of this invention have been
fully and effectively accomplished. It will be realized, however,
that the foregoing preferred specific embodiment has been shown and
described for the purpose of illustrating the functional and
structural principles of this invention and is subject to change
without departure from such principles. Therefore, this invention
includes all modifications encompassed within the spirit and scope
of the following claims.
* * * * *