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Патент USA US2136002

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Nov. 8, 1938.
c. J. CLARKE
VALVE CAP RETAINER
Original Filed March 15,.1935
2,136,002
2,136,002
Patented Nov. 8, 1938
I
verve on» RETAINER
PATENT
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Original application March 15, 1935,>Serial ‘No.
"11,353., D'v'ided-and this application July 16,
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1938, serial No. 90,982
(Cl. 138-893)
1 Claim.
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the invention and still making referenee'to the
invention relates to a new and improved
drawing as illustrating the particular improved
construction constituting the invention, it will
‘valve cap‘ retainer and pertains more speci?cal
1y to a retainer for use "in combination with the
be seeri that in conformity with the usual prae‘
ordinary andoonventional screw cap round on
5 and used in connection‘ with the ordinary‘ and
conventional valve and valve stern of a pneumat
it the inner tube.
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‘The ‘present application constitutes a division
or my eppueationserim No. 11,353, ?led March
1-5, 'isesanu‘ entitled “Valve ‘covers and valve cap
retainers."
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The ‘primary ‘object of ‘the invention is the pro
vielen or a ‘valve cap ‘retainer composed ‘of an
elastic or similar resilient material.
15
,
Another and further object of the invention is
the provisionof valve cap retainer adapted to
permit quick and ready removal of the valve
‘cap from the inner tube ‘stem to permit access
to ‘the uncovered ‘valve'to enable the inner tube
20 to-Ibe in?ated o‘r deflated.
>
Another andstill further object of the inven
tion is the provision of a ‘device having the
above ‘speci?cally enumerated attributes and
having the runner ‘improved ‘attribute that the
. ‘retainer prevents the valve cap from being either
misplaced or lost ‘when the cap is removed from
‘thevalve stem ‘for the purpose of in?ating or
deflating the tire inner tube.
Other ‘and further- speci?c objects, ‘novel fea
30 tines ‘of construction and improved ‘results and
benefits of ‘the present invention will appear in
‘more detail from the following description when
read in the light of the accompanying draw
ing}
co (it
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In the drawing‘: ’
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Fig. 1 is a view in side elevation of the present
improved invention illustrating its application
‘to the ‘valve cap of a conventional inner tube
‘valve stem.
110
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Fig. 2 is a view in ‘side ‘elevation, taken at right
angles to Fig. 1, a part of the view broken away
and-‘appearing in vertical section and with the
valve cap retainer being ‘illustrated in dotted
line as it‘ appears when the cap is removed from
“
the-stein.
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Describing the invention broadly with refer
ence to the accompanying drawing, A designates
as an entirety
automobile or
ventional cap
upper end of
55
the conventional valve stem of an
similar tire inner tube. The con
which serves as a closure for the
this stem is designated as an en
tice the ‘upper end Of the valve stem 'isthrea'ded
‘as indicated at ‘l, and that the-cap B is oi'c‘oni
ventibnal form in that ‘it has a lower skirt'por
tion ‘2-,’ which is ‘internally threaded to receive
the upper threaded end portion l of the valve
stem. Above this skirt portion the'cap is en; 10
larged tol’form a band 3, which is externally
vroughened and which in conventional use con~
'stitu‘tes a ?nger receiving portion by means of
which the cap can be readily rotated forremoval
‘from or application‘to the valve ‘stem.
Above
this ‘roughened band ‘portion 3, ‘the'i‘cap still fol
lows its conventional‘iorm in having an elon
gated portion ‘4 of reduced diameter having in
its upper end a kerf 5, which'is adapted ‘to co
operate with the valve ‘(not-shown) for tight'em 20
ing it within ‘or ‘removing it from the hollow
‘valve
stemh.
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An internally threaded nut 6 is adapted to be
applied to the upper threaded-end portion I of
thevalve ‘stem' and by rotation moved downward~
1y ‘thereon to'assuine the position clearly illu'se
25
trated in they drawing, whereby vit is consider
ably below the ‘upper end of the stem'and forms
a circumferential enlargement at the baseof the
threaded‘ portion of‘ the stem and also forms a
circumferential shoulder “l, the function of which
will hereinafter- clearly ‘appear.
30
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The cap ‘retainer and ‘closure ‘C is made of
rubber or other like ‘and suitable ?exible ‘or
‘elastic material andjcomprise's a hollow upper ~
end or'he'ad ‘portion 8, which completely em‘
braces and vretains under resilient tension the
cap skirt portion 2 and roughened 'band‘portion
3. The top 9v of the head is provided with an
opening to permit passage therethrou‘gh of tin 40
elongated reduced portion A of the cap and ex“
tends 'ove‘rand resiliently -'e'ngages the/curved
portion [0 of the cap immediately above the can
band 3‘. Additionally, ‘the head -8~-is~ preferably
of a ‘length to extend below the lower ‘end ‘oi-"the
cap skirt portion 2 as clearly appears at H.
In addition to its head portion 8 the cap re
tainer and closure C comprises a lower ring por
tion l2, which is carried by and connected to
tirety at B and the cap retainer and carrier
which is also a water and dirt-proof closure, is
the head portion by two oppositely disposed nar
row side wall portions I3 and M, which provide
oppositely disposed windows I5 in the carrier.
; The lower ring portion H of the retainer is
designated as an entirety at C.
Proceeding now with a detailed description of
positioned on the valve stem at a point below the
nut Grand has an internal diameter greater than 55
2,136,002
2.
the diameter of the valve stem, with the result
that it is free to either rotate or reciprocate upon
the valve stem, but is of an internal diameter less
than the outer diameter of the nut 6 with the
further result that the ring in its movement can
not pass upwardly over the nut or by the cir
cumferential shoulder 1 formed by the nut on
the valve stem.
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edge of the windows I5 and because of this, the
part C of the closure carrying the said cap is more
readily movable laterally to the position shown
in dotted lines in Figure 2. It will be seen, of
course, that the side wall or arm portions I3 and
I4 are of suf?cient length to afford the necessary
longitudinal movement of the retainer to permit
the rotary removal of the cap Brfrom the valve
The construction of the cap carrying closure
stem and that when the retainer.is swung to
C is also such that the side wall members I3 and
either side of the valve stem that the upper end of
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I4 which unite the ring to the head do not engage , the stem will extend through one of the windows
or bind upon the stem nut 6, or in any way hinder I5 and be available for the application of an air
the free rotation or reciprocation of thering I2
hose or the like.
on the valve stem.
From the foregoing description it will be'seen
With a construction such as described, the cap
retainer and‘closure provides a dust and mois
that when it is desired to apply an air hose or
ture-proof protection for the valve and constitutes
pump hose to the valve stem to in?ate the tire
a positive carrier and retainer for the cap to
prevent ‘it from being lost or misplaced. While
serving the double function of a cap carrier and
protecting closure the structure is such that it is
tube, the cap B is removed from the stem in the
ordinary and conventional way, viz: by rotation.
When the cap retainer and closure has‘been ro
tated‘suf?ciently to disengage the cap from the
threaded portion of the stem, as illustrated in
Fig. 2 of the drawing, the retainer can then be
swung or moved against resilient tension of the
side walls of the arms I3 and I4 to either side of
the valve stem as is illustrated in dotted lines
in the before referred to Fig. 2 of the drawing.
Attention is especially directed to the fact that
by unscrewing the cap B from the valve stem I,
the lower part of members I3 and I4 and the
ring I2 of the rubber closure C are also rotated
around the valve stem and the nut 6, since the
in no sense an obstacle to the easy and rapid re
moval or replacement of the conventional metal
valve cap B and is not in the way when .it is
found necessary to in?ate or- de?ate the inner
tube.
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Attention is directed to the fact that the pres
ent invention can be quickly, readily and cheaply
applied to and used in connection with any con
ventional inner ‘tube by merely vapplying to _ the
upper end of the tubevvalve stem the nut 67 or
its equivalent. Thus the present invention con
stitutes a novel and useful appliance which can
parts of the closure ?t loosely the valve stem and
the part 6. By reference to Fig. 2, it will be ‘ob
be cheaply manufactured by reason of its sim
plicity and which should have a large volume of
served that when the cap B is unscrewed.- from the
part I of the valve stem. the closure can move
sale by'reason of its highly‘ desirable attributes
vertically until the part I2 engages the member
6. In Fig. 2 the parts are shown in this posi
tion, and in said ?gure the cap B and the part C
540 are shown in dotted lines to be moved tosub
stantially horizontal positions. After the air is
supplied or removed through the valve stem A and
the hose through which the air is conducted to
the inner tube is removed, then the valve and
the part C will automatically return to a verti
cal position when they are permitted. . In'order
to place the valve cap B on the threaded stem I,
it is necessary to depress the valve cap which
also depresses the closure until the cap engages
and numerous prospective purchasers. v
I claim:
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The combination with a conventional valve
stem having an outerthreaded end and a con
ventional internally threaded cap therefor, of .a 40
threaded nut on the threaded portion of said
valve stem and normally positioned at the lower
end thereof and a hollow elastic member having
open ends, the outer and upper end portion o-f‘said
member tightly ?tting said valve cap and its inner 45
and lower end loosely surrounding said valve, stem
at a point below said nut, said hollow-member
havinganelongated elastic intermediate portion
interconnecting said upper and lower portions
the threaded portion I, at which time the valve
and formed with a window, said intermediate ,
cap and the closure can be rotated until. the cap
portion, loosely ?tting said nut and said valve
stem, said hollow upper end portion forming a
has been fully seated on the end of the valve
stem I. By reference to Figure 1, it will be under
closed wall with said cap which Wall extends
down to said nut when the cap has been screwed
there is a space between the under edge of the - to a closed position on the valve stem thus form
member 6 and the lower edge of the openings or ing a closure for that part of the threaded por
windows I5, and that the part’ C of the closure tion of the valve stem lyingbetween the inner end
stood that with the parts in the position shown,
has traveled downward su?iciently to venclose the
screw threaded portion I of the valve stem and
60 make an absolutely dustproof cover for the screw
threaded portion of the valve stem I.
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It will also be understood by reference to Fig. 2
of the drawing that with the parts in the posi
tions there shown the upper end of the screw
65 threaded valve stem lies substantially at the upper
of said cap and the outer and upper end of said
nut, and the lower portion of the hollow member
extending below the nut a distance substantially 60
corresponding to the’ extension of the upper por
tion of the hollow-member, the parts operating
as and for the purpose described.
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CHARLES J. CLARKE.
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