Patent US3774774A successfully refreshed from Google Patents.
Patent US3791434A successfully refreshed from Google Patents.
US3791434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for fitting and removing of tire which equip the wheels of motor vehicles
Assignee: Individual
•
Filing: 1972-03-16
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Granted: 1974-02-12
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Expires: 1992-03-16
Abstract
Abstract A device for removing or mounting vehicle tires relative to a wheel therefore and having driven means for clamping and rotating the wheel in opposite directions and an arm having tire removing and mounting tools at opposite ends which arm can be positioned and held with either tool against the tire for the intended purpose whereby rotation of the wheel will remove or mount the tire on the wheel.
Inventors
- 👤 V Duquesne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:43
CPC Classifications
B; B60; B60B; B60B30/00; B60B30/06; B60C; B60C25/00; B60C25/01; B60C25/05; B60C25/053; B60C25/0545; B60C25/132; B60B2900/00; B60B2900/50; B60B2900/521; B60Y; B60Y2200/00; B60Y2200/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
216 words
A device for removing and fitting tires on wheels of motor vehicles, which device comprises a driven vertical shaft, a gear fixedly mounted on said shaft, a plurality of pinions engaging said gear, an arm fitted on each pinion, a jaw on each arm and displaceable in a horizontal plane by said pinion for retaining the wheel, a common driving element frictionally engaging said gear and rotatably supporting said pinion and capable of rotating with said gear and rotating said pinions for the purpose of the displacement of said jaws and the rotation of said jaws with the wheel, a chassis, a vertical column on said chassis, a horizontal arm traversing said column, means provided between said vertical column and said horizontal arm permitting the arm to slide axially in said column and to rotate and to fix said arm in said column, a rod fitted with tire removal and fitting tools, which rod is displaceable in height in said horizontal arm whereby said rod can be brought into operating position by said horizontal arm, said tool for removing the tires comprises a conical part, a cylindrical part and a part in the shape of a double cone which is provided with an angular cavity in transverse direction with respect to the axis of said rod.
Claim 2
Independent Claim
216 words
A device for removing and fitting tires on wheels of motor vehicles, which device comprises a driven vertical shaft, a gear fixedly mounted on said shaft, a plurality of pinions engaging said gear, an arm fitted on each pinion, a jaw on each arm and displaceable in a horizontal plane by said pinion for retaining the wheel, a common driving element frictionally engaging said gear and rotatably supporting said pinion and capable of rotating with said gear and rotating said pinions for the purpose of the displacement of said jaws and the rotation of said jaws with the wheel, a chassis, a vertical column on said chassis, a horizontal arm traversing said column, means provided between said vertical column and said horizontal arm permitting the arm to slide axially in said column and to rotate and to fix said arm in said column, a rod fitted with tire removal and fitting tools, which rod is displaceable in height in said horizontal arm whereby said rod can be brought into operating position by said horizontal arm, said tool for removing the tires comprises a conical part, a cylindrical part and a part in the shape of a double cone which is provided with an angular cavity in transverse direction with respect to the axis of said rod.
Claim 3
Dependent Claim
54 words
A device as defined in claim 1, in which said driving element is a housing which serves as turntable, and each of said pinions is provided at the top with an extension which passes through said housing and upon which extension the arm of the pinion which bears one of said jaws, is fitted.
Claim 4
Dependent Claim
34 words
A device as defined in claim 2, in which a friction disc is fitted between said turntable and said chassis, and means are provided for maintaining a pressure between said turntable and said chassis.
Claim 5
Dependent Claim
98 words
A device as defined in claim 1, in which said horizontal arm has a square transverse cross-section with rounded off edges as well as a portion which is of cylindrical shape, one bushing having a circular opening is mounted in said column, a second bushing with a square opening is also mounted in said column, both bushings are fitted opposite to each other in said vertical column with said horizontal arm extending therethrough in such a manner that said arm can only rotate when its cylindrically shaped part is located in said second bushing with a square opening.
Claim 6
Dependent Claim
40 words
A device as defined in claim 4, in which said sleeve in said column having said horizontal arm extending therethrough and means for moving said sleeve laterally of said horizontal arm for fixing said horizontal arm within said two bushings.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |