Patent US3797880A successfully refreshed from Google Patents.
US3797880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extendable vehicle body
Assignee: CARROZZERIA BONESCHI Srl
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Filing: 1972-06-01
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Granted: 1974-03-19
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Expires: 1992-06-01
Abstract
Abstract A guide for the movement of the walls of vehicle bodies of the extendable wall type comprising at least a first and a second beam member constituted of sections, and supporting the first member a plurality of wheels mounted on ball bearings, adapted to engage with rolling tracks defined inside the second member, so as to permit the sliding engagement of the first member in the second member, the first member being connected to the extendable walls whereas the second member is fixed to a vehicle chassis.
Inventors
- 👤 P Pezzaglia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:44
CPC Classifications
B; B62; B62D; B62D21/00; B62D21/14; B60; B60P; B60P3/00; B60P3/32; B60P3/34; B60P3/42; B62D33/00; B62D33/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
78 words
A guide for the movement of the walls of vehicle bodies of the extendable wall type comprising fixed on the chassis of the vehicle, an elongated casing and arranged telescopically therein at least one beam member constituted of sections, said beam member having a plurality of wheels mounted on ball bearings, said elongated casing having a cross-section of shaped profile substantially in the form of a double T, whose shaping defines internal longitudinal rolling tracks for said wheels.
Claim 2
Dependent Claim
78 words
A guide for the movement of the walls of vehicle bodies of the extendable wall type comprising fixed on the chassis of the vehicle, an elongated casing and arranged telescopically therein at least one beam member constituted of sections, said beam member having a plurality of wheels mounted on ball bearings, said elongated casing having a cross-section of shaped profile substantially in the form of a double T, whose shaping defines internal longitudinal rolling tracks for said wheels.
Claim 3
Dependent Claim
143 words
A guide for the movement of the walls of vehicle bodies of the extendable wall type, comprising, fixed on the chassis of the vehicle, an external beam member in the form of an elongated casing, and arranged telescopically therein an intermediate beam member having a hollow cross-section of shaped profile, substantially in the form of a double T, and an internal beam member, said internal beam member having a plurality of wheels mounted on ball bearings, and said external beam member having guiding rollers for said intermediate beam member, said double T shaped profile of said intermediate beam member defining externally longitudinal rolling tracks in guiding engagement with said guiding roller of said external beam member, and said double T shaped profile of said intermediate beam member defining internally further longitudinal rolling tracks for said plurality of wheels of said internal beam member.
Claim 4
Dependent Claim
143 words
A guide for the movement of the walls of vehicle bodies of the extendable wall type, comprising, fixed on the chassis of the vehicle, an external beam member in the form of an elongated casing, and arranged telescopically therein an intermediate beam member having a hollow cross-section of shaped profile, substantially in the form of a double T, and an internal beam member, said internal beam member having a plurality of wheels mounted on ball bearings, and said external beam member having guiding rollers for said intermediate beam member, said double T shaped profile of said intermediate beam member defining externally longitudinal rolling tracks in guiding engagement with said guiding roller of said external beam member, and said double T shaped profile of said intermediate beam member defining internally further longitudinal rolling tracks for said plurality of wheels of said internal beam member.
References Cited (Backward Citations)
US2842972A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |