US3690654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pull type frictional resistance exercising device
Assignee: Individual
•
Filing: 1971-04-21
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Granted: 1972-09-12
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Expires: 1991-04-21
Abstract
Abstract An exercising apparatus having a rotatable member to which a braking moment is frictionally applied so that tension will be developed in flexible members which are wound on the rotatable member and which are operable for alternately rotating the latter in opposite directions.
Inventors
- 👤 Doublas I Hepburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:44
CPC Classifications
A; A63; A63B; A63B21/00; A63B21/15; A63B21/151; A63B21/153; A63B21/00058; A63B21/00069; A63B21/012; A63B21/015; Y; Y10; Y10S; Y10S482/00; Y10S482/909
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
194 words
Exercising apparatus including: a. a base block having a longitudinally extending rectangular way in its undersurface, the way having an upper wall which is substantially horizontal, b. a non-rotatable rectangular brake block slidably fitting in the way and having its upper surface engaging the under side of said upper wall, c. complemental friction elements secured respectively, to the under surface the upper wall of said base block and said the upper surface of said brake block, d. a rotatable member mounted between the base block and the brake block, said member having a braking surface engageable with said friction elements, e. a pair of flexible tension elements operably connected to the respective opposite ends of the rotatable member for rotating the latter, alternately, in opposite directions, f. and means connecting the base and brake blocks for forcing the frictional elements into frictional engagement with the rotatable member so as to develope a braking moment against the rotation of the rotatable member during the rotation of the rotatable member by a user during an exercise program, and said means connecting the base and the brake blocks being adjustable so as to vary the braking moment.
Claim 2
Dependent Claim
194 words
Exercising apparatus including: a. a base block having a longitudinally extending rectangular way in its undersurface, the way having an upper wall which is substantially horizontal, b. a non-rotatable rectangular brake block slidably fitting in the way and having its upper surface engaging the under side of said upper wall, c. complemental friction elements secured respectively, to the under surface the upper wall of said base block and said the upper surface of said brake block, d. a rotatable member mounted between the base block and the brake block, said member having a braking surface engageable with said friction elements, e. a pair of flexible tension elements operably connected to the respective opposite ends of the rotatable member for rotating the latter, alternately, in opposite directions, f. and means connecting the base and brake blocks for forcing the frictional elements into frictional engagement with the rotatable member so as to develope a braking moment against the rotation of the rotatable member during the rotation of the rotatable member by a user during an exercise program, and said means connecting the base and the brake blocks being adjustable so as to vary the braking moment.
Claim 3
Dependent Claim
25 words
Apparatus as defined in claim 1 in which the rotatable member is a cylindrical shaft having axially disposed pulleys non-rotatably mounted at opposite ends thereof.
Claim 4
Dependent Claim
36 words
Apparatus as defined in claim 2 in which the flexible tension members are cables wound on the pulleys, each of said pulleys having an axially extending helical groove formed thereon for seating one of said cables.
Claim 5
Dependent Claim
42 words
Apparatus as defined in claim 1 in which the friction elements are formed of flexible fibrous material and fit in complementary grooves formed in the under surface of the upper wall and the upper surface of the base and brake blocks, respectively.
Claim 6
Dependent Claim
26 words
Apparatus as defined in claim 1 in which the means connecting the base and brake blocks includes bolt means extending through the base and brake blocks.
Claim 7
Dependent Claim
53 words
Apparatus as defined in claim 1 in which the means connecting the base and brake blocks includes a U-bolt straddling the rotatable member and connected to the brake block, and eyebolt connected to the U-bolt slidably extending through the base block and a nut engaging the eyebolt and bearing on the base block.
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) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |