US3633905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Log rolling apparatus
Assignee: Individual
•
Filing: 1969-12-18
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Granted: 1972-01-11
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Expires: 1989-12-18
Abstract
Abstract Log rolling apparatus for amusement and exercise on land, having a simulated log rotatably mounted on a supporting frame. The frame is comprised of two spaced ground-engaging end plates. Fixed axially to the log is a shaft, and each end of this shaft removably carries a bearing cap. The bearing caps are rotatably mounted in the end plates. The rolling freedom of the log is controlled by clamps which adjust the friction between the end plates and bearing caps. A pair of spacer bars extend parallel to the log, one on each side, and interconnect the end plates. These bars are of flattened cross section and are located downwardly and inwardly of the log to minimize the possibility of injury to a rider who slips off the log.
Inventors
- 👤 Robert J L Etchelecou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:08
CPC Classifications
A; A63; A63B; A63B26/00; A63B26/003
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
85 words
A log rolling apparatus, comprising, a supporting frame having a pair of rigidly interconnected end plates, a substantially cylindrical log having bearing means extending axially from opposite ends thereof and bearing on said end plates, adjustable frictional clamping means securing said bearing means to said end plates, a pair of spaced parallel spacer bars fixed between and interconnecting said end plates, and said spacer bars being of flattened cross section and inclined downwardly and inwardly under said log on opposite sides of the axis thereof.
Claim 2
Dependent Claim
85 words
A log rolling apparatus, comprising, a supporting frame having a pair of rigidly interconnected end plates, a substantially cylindrical log having bearing means extending axially from opposite ends thereof and bearing on said end plates, adjustable frictional clamping means securing said bearing means to said end plates, a pair of spaced parallel spacer bars fixed between and interconnecting said end plates, and said spacer bars being of flattened cross section and inclined downwardly and inwardly under said log on opposite sides of the axis thereof.
Claim 3
Dependent Claim
84 words
A log rolling apparatus, comprising, a supporting frame having a pair of rigidly interconnected end plates, a substantially cylindrical log having bearing means extending axially from opposite ends thereof and bearing on said end plates, adjustable frictional clamping means securing said bearing means to said end plates, said log has an axial shaft fixed therein and projecting from opposite ends, said bearing means comprising cylindrical bearing caps secured on said shaft ends, and said bearing caps are removably and nonrotatably secured to said shaft.
Claim 4
Dependent Claim
84 words
A log rolling apparatus, comprising, a supporting frame having a pair of rigidly interconnected end plates, a substantially cylindrical log having bearing means extending axially from opposite ends thereof and bearing on said end plates, adjustable frictional clamping means securing said bearing means to said end plates, said log has an axial shaft fixed therein and projecting from opposite ends, said bearing means comprising cylindrical bearing caps secured on said shaft ends, and said bearing caps are removably and nonrotatably secured to said shaft.
Claim 5
Dependent Claim
28 words
Log rolling apparatus according to claim 2, and including bearing blocks secured to said end plates and having arcuately notched portions in which said bearing caps are journaled.
Claim 6
Dependent Claim
30 words
Log rolling apparatus according to claim 3, wherein said clamping means comprises a saddle member straddling each of said bearing caps and being adjustably secured to the respective bearing block.
Claim 7
Dependent Claim
37 words
Log rolling apparatus according to claim 4, wherein each of said bearing caps has a radially extending annular retaining flange, said end plates having grooves to receive said retaining flanges and hold said log against axial displacement.
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |