US3734493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sit-up exercise apparatus
Assignee: Individual
•
Filing: 1971-11-12
•
Granted: 1973-05-22
•
Expires: 1991-11-12
Abstract
Abstract A multipurpose weighted exercising device which comprises: a dumbbell having a short connecting element, the element secured to weighted elements at each end of the connecting element; a platform parallel to the connecting element, the platform having each end secured to one end of the weighted elements of the dumbbell; and a U-shaped restraining strap secured at each end of the platform and in the middle of the platform to permit the insertion of the user''s feet between the U-shaped strap elements and the platform.
Inventors
- 👤 J Hasekian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:11
CPC Classifications
A; A63; A63B; A63B23/00; A63B23/02; A63B23/0205; A63B23/0211; A63B21/00; A63B21/06; A63B21/072; A63B21/40; A63B21/4001; A63B21/4011; A63B21/4015
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
166 words
A multipurpose weighted exercising device which comprises: a. a dumbbell having a short connecting element adapted to be grasped by the hand of the user, the element rigidly secured to weighted and generally conical-shaped elements at each end of the connecting element; b. a rigid flat platform parallel to the connecting element, the platform having each end extending from the base of one end of the weighted conical elements of the dumbbell, the platform extending generally the length of the dumbbell and having a width extending to about the width of the base of the conicalshaped elements, the platform and dumbbell comprising an integrally cast piece, the weighted elements, connecting element, and the platform defining an opening in the device dimensioned such that a user may grasp the connecting element; and c. a U-shaped restraining strap secured at each end of the platform and in the middle of the platform to permit the insertion of the user''s feet between the U-shaped strap elements and the platform.
Claim 2
Dependent Claim
166 words
A multipurpose weighted exercising device which comprises: a. a dumbbell having a short connecting element adapted to be grasped by the hand of the user, the element rigidly secured to weighted and generally conical-shaped elements at each end of the connecting element; b. a rigid flat platform parallel to the connecting element, the platform having each end extending from the base of one end of the weighted conical elements of the dumbbell, the platform extending generally the length of the dumbbell and having a width extending to about the width of the base of the conicalshaped elements, the platform and dumbbell comprising an integrally cast piece, the weighted elements, connecting element, and the platform defining an opening in the device dimensioned such that a user may grasp the connecting element; and c. a U-shaped restraining strap secured at each end of the platform and in the middle of the platform to permit the insertion of the user''s feet between the U-shaped strap elements and the platform.
Claim 3
Dependent Claim
14 words
The device of claim 1 which includes a soft cushion disposed on said platform.
Claim 4
Dependent Claim
14 words
The device of claim 1 wherein the restraining strap is a resilient restraining strap.
Claim 5
Dependent Claim
20 words
The device of claim 1 which includes bracket elements secured to each weighted element to secure the restraining strap thereto.
Claim 6
Dependent Claim
13 words
The device of claim 1 wherein the restraining strap is a double-loop strap.
Claim 7
Dependent Claim
12 words
The device of claim 1 wherein the platform is oval in shape.
Claim 8
Dependent Claim
20 words
The device of claim 1 wherein the restraining strap is free to move slidably through the middle of the platform.
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) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |