Patent US3750464A successfully refreshed from Google Patents.
US3750464A
Expired / Lapsed
US
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Dynamometer apparatus for cleated vehicles
Assignee: OSTRADYNE Inc
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Filing: 1971-01-29
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Granted: 1973-08-07
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Expires: 1991-01-29
Abstract
Abstract Chassis dynamometer apparatus for cleated, track driven vehicles having an endless belt for frictional contact with the cleats, wherein the belt is a V-belt or a cog belt having a surface layer of a resilient material capable of embedding the cleats of such vehicles without substantial slippage and destruction of the belt.
Inventors
- 👤 R Ostrander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:48
CPC Classifications
G; G01; G01L; G01L5/00; G01L5/13
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
78 words
In a chassis dynamometer apparatus for a cleated vehicle the combination of: a head pulley, a tail pulley, dynamometer testing means operatively connected to one of said pulleys, and an endless belt engaging said pulleys, wherein said belt has a foundation layer for operative contact with said pulleys, and a surface layer bonded to said foundation layer, said surface layer comprising a resilient, foam-like, thermoplastic material capable of embedding the cleats of said vehicle without substantial slippage therewith.
Claim 2
Dependent Claim
78 words
In a chassis dynamometer apparatus for a cleated vehicle the combination of: a head pulley, a tail pulley, dynamometer testing means operatively connected to one of said pulleys, and an endless belt engaging said pulleys, wherein said belt has a foundation layer for operative contact with said pulleys, and a surface layer bonded to said foundation layer, said surface layer comprising a resilient, foam-like, thermoplastic material capable of embedding the cleats of said vehicle without substantial slippage therewith.
Claim 3
Dependent Claim
16 words
Apparatus according to claim 1 including means positioned between said pulleys for elevating said endless belt.
Claim 4
Dependent Claim
20 words
Apparatus according to claim 1 wherein said endless belt is a V-belt and said pulleys are grooved for mating therewith.
Claim 5
Dependent Claim
22 words
Apparatus according to claim 1 wherein said endless belt is a cog belt and said pulleys are also cogged for mating therewith.
Claim 6
Dependent Claim
17 words
Apparatus according to claim 1 wherein the foundation and surface layers of said belt are vulcanized together.
Claim 7
Dependent Claim
20 words
Apparatus according to claim 1 wherein the foundation and surface layers of said belt are bonded together with an adhesive.
Claim 8
Dependent Claim
12 words
Apparatus according to claim 1 wherein said surface layer comprises synthetic rubber.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |