US1672489A - Valve - Google Patents

Description

June 5, 1928. 1,672,489

R. H. HENEMIER VALVE Original Filed Aug. 10. 1922 INVENTOR 4By Atmeys, l i @W Patented June 5, 1928.

UNITED STATES PATENT OFFICE.

-IROBERT H. HENEMIER, OF

NEW YORK, N. Y., ASSIGNOR T0 A. SCHRADERS SON, IN-

CORPORATED, OF BROOKLYN, NEW YORK, A CORPORATION 0F NEW YORK.

VALVE.

Application led August A10, .1922, Serial No. 580,944. Renewed March 27, 1926.

The present invention relates to tire valves and more particularly to cap closures for such valves. y

According to the present invention I provide a cap closure adapted to function both as a valve cap and a dust cap, the parts being so co-related that either` or both may be quickly attached or detached. This permits the quick application of a pump coupling when it is desired to inflate the tire, and the'quick detachment of the entire closure when it is desired to remove the tire from the wheel rim. The invention also contemplates the use of suitable packing means whereby any leakage through the tire valve past the valve cap is effectively prevented, and for precluding the entrance of dirt, moisture and the like from gainin access to either the interior or exterior o the valve casing. It is also an object of the present invention to have the inner end of the dust cap engage within the opening in the felly around the valve casing 1n mountings where a felly clamping nut is not used, and thereby prevent undue lateral movement and cantlng of the valve casing. Certain other features of improvement are also provided as Will be hereinafter more fully set forth.

In the drawings wherein I have shown the preferred embodiments of my invention:

Figure l is a longitudinal section of a portion of a Wheel felly, rim and inner tube showing one embodiment of the invention applied over a valve casing passing through the felly, the cap closure being shown partly in section and partly in elevation.

Fig. 2 is a longitudinal section of a modification of the cap closure of the present invention applied over a valve casing, the latter being shown in elevation.

Fig. 3 is an elevation of the valve cap shown in Fig. 2.

Fig. 4 is a longitudinal section of a slight modification of the valve cap shown in Fig. l mounted upon a valve casing, the latter and the packing engaging the valve cap being shown in elevation.

Referring first to Fig. 1 of the drawings let A indicate a portion of a Wheel felly having a rim B mounted thereon, and an inner tube C mounted on said rim. The inner tube carries a valve casing D secured thereto through the medium of the enlarged foot E casin on the valve casing, the washer F, the spreader G and the clamping nut H, as is common practice.v The valve casing passes through an opening I in thefelly of slightly larger diameter than said casing as is the usual practice.

Accordin to the present invention I provide a cap c osure for the protruding portion of the valve casing, said closure bein adapted to function both as a valve cap and as a dust cap. This ca closure is indicated generally by the letter It and consists of the valve cap portion L and the dust cap portion M, the parts being so co-related that either or both may be qulcklv attached or detachcd from the valve casing. The valve ca L is internally threaded to engage and su stantially wholl enclose the reduced nipple portion N o the valve casing, the open end of the cap being Unthreaded and formed with an inwardly tapered surface adapted to seat against and enclose a suitable packing O carried by the valve casing and formed with an outer wall ta ered complemental to the taper on the va ve cap. The packing O preferably rest against a shoulder d on the valve casing formed between the reduced nipple and the casing proper and seats in a recess or annular groove P formed on the nipple ad'acent the shoulder on the valve he dust cap portion M consists of a ho low sleeve adapted to slide over the valve casing said sleeve having an opening in its top adapted to permit the passage of the nipple therethrough and a fiange m surrounding said opening adapted to seatagainst the shoulder d on the casing. Preferably the opening in the top of the dust cap portion is of a size to engage the periphery of the packing O at its base. It is also preferable that the valve cap L be provided with a packing Z in its bottom face adapted to form a seal with the flange m at the top of the dust cap portion and thus further protect the exterior of the valve casing against the ingress of dirt, moisture and the like. As shown in Fig. 1 the lower end of the dust cap portion seats within the opening I in the felly7 from which it will be appreciated that the cap closure is adapted to accommodate and entirely enclose valve casings which protrude through the felly to different degrees. By having the lower end of the dust cap seat within the opening in vas a further protection for the exterior of the valve casing, said lining also providing frietional engagement between the dust cap portion and the casing whereby the former may be securely held on the latter without the aid of other means. To holdthe lining in place within the member M the lower end of said member is flanged inwardly as shown at m. The flange m may also serve as a seating face for the dust cap portion against the rim nut for it will be understood that this type of cap closure is primarily intended to -be used where a rim nut is employed. 20

In Fi 4 I have shown the valve cap L minus t e packing Z employed without the dust cap portion. When so used the cap forms a seal with the packing O which effectively prevents the loss of any air which may pass up through the valve insides in cases where such insides have become defective. In the diderent forms of valve caps herein shown it will be understood that the exterior thereof may be of any desired shape but referably provided with a milled or knur ed surface whereby manipulation oi the cap will be facilitated.

To inflate a tire provided with the cap closure of the present invention all that is necessary is to remove the cap L and attach the pump coupling tothe nipple N. On the other hand if the tire is to be removed from the wheel rim the dust cap portion M is pulled od the casing after removal of th'e cap L. It will thus be seen that the ca closure of the present invention effectively functions as a combined quick detachable valve cap and dust cap.

While I have herein shown and described preferred embodiments of myA invention I do not wish to be limited to the specic constructions disclosed since various changes may be made therein without departing from the spirit of the invention.

What I claim is:

1. The combination with a valve casing having a nipple ofreduced diameter providing a `shoulder between the body of said casing and said nipple, and a dust cap comprising a dust cap portion and a valve cap portion, the dust cap portion being adapted to slide down over the valve casing and having an opening therein for the valve, and the va ve cap portion being adapted to engage the nipple to hold the dust cap portion 1n place, of a packing having a tapered outer wall resting on said shoulder and seating against said nipple, the opening in said dust cap portion andthe valve cap portion being a apted to engage the tapered wall of the packing. v

2. In combination, a wheel felly having an opening therein adapted to receive a tire valve casing, a valve casing of somewhat smaller diameter than the opening, extendino' therethrough, and a dust' cap for the va ve casing having a part extending into `\the felloe opening, said dust cap comprising dust cap portion of a length to almost entirely enclose the portion of the valve casing which extends through the felloe, adapted t-o slide down over the valve casing and extend into the telly opening and having an opening at its top for the valve casing and a valve cap portion adapted to engage the valve casing to hold the dust cap portion in place.

3. In combination, a wheel telly having an opening therein adapted to receive a tire valve casing, a valve casing of somewhat smaller diameter than lthe opening, extendin therethrough, tand a dust cap for the vva ve casing having a part extending into the felloel opening, said dust cap being adapted to slide down over the valve casing and extend into the felly opening and means at the top of the dust cap for engaging the valve casing to hold the dust cap thereon.

4. In combination, a wheel felly having an opening therein adapted to receive a tire lvalve casing, a valve casing of somewhat smaller diameter than the opening, extendino` therethrough,"' and a dust cap for the va ve casing havinga part extending into the elloe opening, said dust cap being adapted to slide down over the valve casing and extend into the felly opening, means for engaging the valve casing to hold the dust cap thereon and means near the top of the cap for limiting the downward movement of the dust cap over the valve casing. v

5. In combination, a wheel felly having an opening therein adapted to receive a tire valve casing, a valve casing of somewhat smaller diameter than the opening, extendino` therethrough, and a dust cap for the va ve casing having a part extending into the felloe opening, said 'dust cap being adapted to slide down over the valve casing and extend into the felly opening, means for engaging the valve casing to hold the dust cap thereon and a packing forming a leaktight joint between the valve casing and the dust cap.

In witness whereof, I have hereunto signed my name.

ROBERT H. HENEMER.

Images