Патент USA US2406563код для вставки
Patented Aug. 27, 1946 2,4065563 UNITED STATES ` FICE ' »2,406,563 VALVE cnr Wesley J. Robents, North Little Rock, Ark. Application June 8, 1945, Serial No. 598,374 3 Claims. l (Cl. ISS-'893) 2 , This invention relates to valve caps for pneu recess I2 to provide clearance for the Vupwardly matic tires, and more particularly, to a valve cap protruding end yof the valve when the cap is in which is fastened to the valve stem of a tire to clamped position on the valve stem. prevent its loss but which may be manipulated to Lug members Il), I0 are formed with circular expose the valve without detaching it from said openings I3, I3 adjacent their upper ends. Piv stem. otally secured to lug members I0, I0 at said cir A main object of the invention is to provide a cular openings is a clamping cap member I4 corn novel and improved Valve cap which affords thor prising a shell element adapted to closely fit over ough protection for the valve stem against leak sealing cap member l. Clamping cap member I4 age of air through the valve and which prevents 10 is provided with a rear extension I5 formed with the admission of dirt or other undesirable foreign a pair of oppositely directed lug elements I6, I6 matter. ‘ adapted to be pivotally engaged in the respective A further object of the invention is to provide circular openings I3, I3 and also formed with a an improved valve cap which is securely fastened depending arm member I1 adapted to contact the to the valve stem to prevent its loss but which 15 upper surface of extension 9 when clamping cap may be readily manipulated from an open to a member I4 is rotated into overlying relation with 1closed ,position or from a closed to an open posi sealing cap 'l and to exert a substantial pressure ion. on said upper surface. Further objects and advantages of the inven Clamping cap member I4 is provided with a tion will appear from the following description 20 front extension I8 formed with a notch or slot I9.’ and claims, and from the accompanying drawing, Collar member 2 is formed with an eye lug 2U at wherein: its front portion in which is pivotally secured a Figure 1 is a side elevational view of a valve stem equipped with a valve cap according to this invention. Figure 2 is an end elevational View of the struc clamping bar 2|, preferably formed of stiff wire, the upper end of said clamping bar being shaped 25 to form a resilient hook portion L22 which is adapted to be engaged through slot I9 and exert a clamping force on the top surface of extension I8 Filgure 3 is a top View of the structure of Fig to secure the clamping cap member I4 firmly in ure . position over sealing cap l. The clamping force Figure 4 is a detail view in cross-section show 30 exerted by hook portion 22 combines with the ing the cap structure in released and partly open clamping pressure exerted by depending arm position. v ture of Figure 1. member I'l on the upper surface of extension 9 to provide a balanced clamping action on sealing Referring to the drawing, I designates the con ventional valve stem of a pneumatic tire. Threadedly engaged with valve stem I is a collar _i cap 1. member 2 which serves as the anchoring means for the valve cap structure. Formed on one Vside Extension I8 is appropriately shaped and formed so that it may be employed as a wrench for removing or replacing the valve core. of collar- member 2 are a pair of eye lugs 3, 3 in To open the cap, clamping bar 2| is disen which is pivotally engaged the lower straight por gaged from extension I8 and clamping cap I4 is a tion 4 of a U-shaped bail member 5, preferably 40 raised to the position shown in Figure 4. Seal fabricated of stiff wire. The upper ends of the ing cap 'I may then be lifted off the valve'cap so legs of -bail member 5 are formed with eye por that access may be had to the valve. The reverse tions E. Pivotally secured to bail member 5 at eye procedure is followed in closing the cap. portions 6 is a sealing cap member 1 comprising a Collar member 2 isinitially engaged sufficient rigid shell of metal, plastic, or other suitable ma 45 ly far down on the valve stem so that the desired terial containing a deformable gasket element 8 initial sealing pressure is obtained. of rubber or the like. Cap member 'I is formed While a specific embodiment of a valve cap with an extension 9 which carries rigidly secured device has been disclosed in the foregoing descrip thereto a pair of vertical parallel lug members I0, I9. Formed on the outwardly facing «surfaces 50 tion, it will be understood that various modiñca- y of said lug members adjacent their lower ends are curved ear members I I, I I which are respectively engaged with the eye portions -6 to pivotally secure cap member 'l to bail member 5. The gasket element s 1s formed with a central 55 tions within the spirit of the invention may occur to those skilled in the art. Therefore it is in tended that no limitations be placed on the in vention other thanV as defined by the scope of the appended claims, ’ = Y ï '2,406,563 3 top of the valve stem in’sealìng'relation thereto, What iS claimed is: a` link Aconnecting said sealing cap to said collar member, a clamping element pivotally secured to said sealing cap member and adapted to closely 1. A valve cap comprising an anchor member adapted to be secured to a valve stern, a sealing cap member pivotallf»r secured to said anchor overlie said sealing cap member, and means se member and adapted to oVerlie the top of the CR curing said clamping element to said collar mem valve stem in sealing relation thereto, a clamping ber in clamping relation to said sealing cap mem element pivotally secured to said sealing cap ber. ` c member and adapted to overlie said sealing cap member and means securingsaid clamping ele ment to said anchor member in` clamping rela--> n 10 tion to said sealing cap member. 2. A valve capV comprising a collar member ` ‘ adapted to be threadedly engaged with a valve stem, a sealing cap member adapted to overlie the 3. The structure of claim 2, and wherein said clamping element is provided adjacentí'ts point of pivotal securement with said sealing cap member with a pressure arm adapted to exert a sealing force on said sealing cap member. WESLEY J. ROBERTS.