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US3674067A
Expired / Lapsed
US
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Tire chucking device
Assignee: INTERN RUBBER IND Inc
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Filing: 1970-04-16
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Granted: 1972-07-04
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Expires: 1990-04-16
Abstract
Abstract An air-operated tire chucking device consisting of a mandrel on which front and rear tire bead-engaging discs are slidably mounted. A removable stop key on the mandrel limits movement on the front disc. The rear disc has a cylinder which receives a stationary piston, defining an expansible primary chamber. With a tire between the discs, compressed air is admitted into this primary chamber, forcing the rear and front discs against the tire beads and thus forming a contact seal for inflation of the tire. As the rear disc reaches a predetermined position, a valve element carried thereby contacts the front disc and exposes a valve port in the rear disc, allowing air to exit from the primary chamber and fill the tire, the tire and discs now forming a secondary chamber. The tire continues to inflate until the air pressure in the tire forces the rear disc back and the valve element loses contact with the front disc and closes the inflation valve. The tire is released by venting the primary chamber, whereby the pressure in the tire overcomes the pressure in the primary chamber, forcing the rear disc rearwardly and causing a tire vent valve carried thereby to open, thus releasing the air from the tire.
Inventors
- 👤 Donno W Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 01:49
CPC Classifications
G; G01; G01M; G01M17/00; G01M17/007; G01M17/02; G01M17/021
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
206 words
A tire chucking device comprising a support including a mandrel, a rear disc member slidably mounted on said mandrel and having an annular forwardly facing tire bead seat on its rim, a forward disc member having a rearwardly facing tire bead seat on its rim, the tire bead seats opposing each other and being sealingly engageable with the respective beads of a tire disposed between the disc members, means to maintain said forward disc member in concentric alignment with the rear disc member, expansible chamber means operatively connected to the rear disc member and including means to move the rear Disc member forwardly responsive to admission of fluid pressure thereto, a source of pressure fluid connected to said expansible chamber means, normally closed tire inflation valve means between said expansible chamber means and the space between said disc members, and means opening said valve means responsive to the forward movement of the rear disc member to a predetermined spacing relative to said forward disc member, whereby to communicatively connect said expansible chamber means to the interior of a tire engaged by said tire bead seats as a result of expansion of said expansible chamber means and to admit pressure fluid into the interior of the tire.
Claim 2
Dependent Claim
206 words
A tire chucking device comprising a support including a mandrel, a rear disc member slidably mounted on said mandrel and having an annular forwardly facing tire bead seat on its rim, a forward disc member having a rearwardly facing tire bead seat on its rim, the tire bead seats opposing each other and being sealingly engageable with the respective beads of a tire disposed between the disc members, means to maintain said forward disc member in concentric alignment with the rear disc member, expansible chamber means operatively connected to the rear disc member and including means to move the rear Disc member forwardly responsive to admission of fluid pressure thereto, a source of pressure fluid connected to said expansible chamber means, normally closed tire inflation valve means between said expansible chamber means and the space between said disc members, and means opening said valve means responsive to the forward movement of the rear disc member to a predetermined spacing relative to said forward disc member, whereby to communicatively connect said expansible chamber means to the interior of a tire engaged by said tire bead seats as a result of expansion of said expansible chamber means and to admit pressure fluid into the interior of the tire.
Claim 3
Dependent Claim
29 words
The tire chucking device of claim 1, and wherein said expansible chamber means is located rearwardly of said rear disc member between said rear disc member and said support.
Claim 4
Dependent Claim
26 words
The tire chucking device of claim 1, and wherein said expansible chamber means comprises a fluid pressure cylinder between the rear disc member and the support.
Claim 5
Dependent Claim
19 words
The tire chucking device of claim 3, and wherein said fluid pressure cylinder is substantially coaxial with the mandrel.
Claim 6
Dependent Claim
39 words
The tire chucking device of claim 3, and wherein said fluid pressure cylinder comprises a cylinder carried by the rear disc member and a piston element mounted on the mandrel and being sealingly and slidably engaged in the cylinder.
Claim 7
Dependent Claim
43 words
The tire chucking device of claim 3, and wherein said fluid pressure cylinder comprises a cylindrical chamber coaxially formed in the rear disc member and a piston element coaxially mounted on the mandrel and being sealingly and slidably engaged in said cylindrical chamber.
Claim 8
Dependent Claim
23 words
The tire chucking device of claim 6, and wherein said cylindrical chamber has a forward transverse wall portion facing the forward disc member.
Claim 9
Dependent Claim
21 words
The tire chucking device of claim 7, and wherein said tire inflation valve means is mounted on said transverse wall portion.
Claim 10
Dependent Claim
60 words
The tire chucking device of claim 8, and wherein said tire inflation valve means comprises a port formed in said transverse wall portion, a valve mounted adjacent said transverse wall portion and being at times engageable with said forward disc member, the valve normally closing said port, and means opening said port when the valve engages said forward disc member.
Claim 11
Dependent Claim
60 words
The tire chucking device of claim 9, and normally closed vent valve means on the rear disc member adjacent the space between the disc members, and means to open said vent valve means responsive to the exhausting of said cylindrical chamber while an inflated tire is operatively engaged on the tire bead seats of the rear and front disc members.
Claim 12
Dependent Claim
50 words
The tire chucking device of claim 10, and wherein said vent valve means comprises means defining a vent port in the rear disc member, and a vent valve mounted so as to open and close said port in response to changes in the lateral positioning of said rear disc member.
Claim 13
Dependent Claim
76 words
The tire chucking device of claim 1, and normally closed positioning vent valve means on the rear disc member normally engaging said forward disc member, and means opening said positioning vent valve means to atmosphere responsive to rearward movement of said rear disc member away from said forward disc member caused by leakage from said expansible chamber means into the interior of a tire engaged between the disc members, whereby to insure centering of the tire.
References Cited (Backward Citations)
US3219077A
Cited
US3258044A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |