US3622153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double crank portable exerciser
Assignee: Individual
•
Filing: 1969-09-02
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Granted: 1971-11-23
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Expires: 1989-09-02
Abstract
Abstract Two grooved bearing plates rotatably secure a tubular shaft of a double crank between them. The plates are spaced apart vertically to determine the crank friction load. A lubricant wick lies in one groove in contact with the crankshaft. A pair of U-shaped legs are held in splayed relationship between top and bottom clamping plates. Elongate fasteners extend through all plates and the legs to unitize the devices.
Inventors
- 👤 John H Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:00
CPC Classifications
A; A63; A63B; A63B22/00; A63B22/06; A63B22/0694; A63B22/0002; A63B22/0005; A63B22/001; A63B22/0605
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
94 words
An exercise device comprising a double crank having a bearing shaft, opposed arms, and a right-angled portion on each arm; a pair of spaced support members; means including a crank bearing assembly disposed in an elevated position by said support members and rotatably mounting the crank, and first and second clamping plates for orienting the support members, the bearing assembly being supported on one of the clamping plates; and means removably connecting said bearing assembly with said support members, including fastening means extending through the bearing assembly, the clamping plates and the support members.
Claim 2
Dependent Claim
94 words
An exercise device comprising a double crank having a bearing shaft, opposed arms, and a right-angled portion on each arm; a pair of spaced support members; means including a crank bearing assembly disposed in an elevated position by said support members and rotatably mounting the crank, and first and second clamping plates for orienting the support members, the bearing assembly being supported on one of the clamping plates; and means removably connecting said bearing assembly with said support members, including fastening means extending through the bearing assembly, the clamping plates and the support members.
Claim 3
Dependent Claim
37 words
A device in accordance with claim 1, wherein said first clamping plate has spaced parallel flanges supporting the bearing assembly above the support members and said second clamping plate has spaced parallel flanges abutting the support members.
Claim 4
Dependent Claim
21 words
A device in accordance with claim 1, wherein the clamping plates are substantially identical dimensionally and oppositely oriented in the device.
Claim 5
Dependent Claim
51 words
a device in accordance with claim 1, wherein the bearing assembly comprises first and second bearing plates and plate spacers, said plates having oppositely opening grooves for receiving the crank-bearing shaft, and including a lubricating fabric wick embraced between said first and second bearing plates and extending across said crank-bearing shaft.
References Cited (Backward Citations)
US2668709A
Cited
US3373992A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |