US4378939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bed frame sit-up exerciser
Assignee: Individual
•
Filing: 1980-10-22
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Granted: 1983-04-05
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Expires: 2000-10-22
Abstract
Abstract A device for holding a person's feet while doing "sit-up" exercises or the like, comprising a plate anchored to the left or right side of the metal "L" frame on either side of bed. Exerciser can be used in any radius from 0° to 180° on either side of bed. Apparatus has a pivot arm, attached to plate anchored to under side of "L" frame by two (2) unique pressure clamps that are employed to hold mounting plate on "L" frame with wing nuts, eliminating the need for holes to be drilled in bed frame. Exerciser has an oval ring which is attached to pivot arm on the outward end. Oval ring has foam cushion installed so the person's feet will be comfortable while doing sit-ups or the like.
Inventors
- 👤 Norman W. Wild
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:54
CPC Classifications
A; A63; A63B; A63B23/00; A63B23/02; A63B23/0205; A63B23/0211; A63B21/00; A63B21/16; A63B21/1672
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
174 words
A sit-up exercise device to be utilized in conjunction with a bed having a frame, said device comprising: (a) a mounting plate; (b) means for detachably securing said mounting plate to the bed frame; (c) a mounting arm pivotally connected to said mounting plate at one end thereof so as to be movable from a position substantially parallel to said mounting plate to an angular position relative thereto; (d) a foot engaging loop located at the other end of said mounting arm; (e) means for pivotally connecting said loop to said other end of said mounting arm, said pivotal connecting means including means for permitting said loop to pivot about a vertical and horizontal axis relative to said mounting arm; and (f) spring means for connecting said one end of said mounting arm to said mounting plate to permit said mounting arm to be placed into one of a plurality of angularly oriented use positions and to retract said mounting arm to a position substantially parallel to said mounting plate in a nonuse position.
Claim 2
Dependent Claim
174 words
A sit-up exercise device to be utilized in conjunction with a bed having a frame, said device comprising: (a) a mounting plate; (b) means for detachably securing said mounting plate to the bed frame; (c) a mounting arm pivotally connected to said mounting plate at one end thereof so as to be movable from a position substantially parallel to said mounting plate to an angular position relative thereto; (d) a foot engaging loop located at the other end of said mounting arm; (e) means for pivotally connecting said loop to said other end of said mounting arm, said pivotal connecting means including means for permitting said loop to pivot about a vertical and horizontal axis relative to said mounting arm; and (f) spring means for connecting said one end of said mounting arm to said mounting plate to permit said mounting arm to be placed into one of a plurality of angularly oriented use positions and to retract said mounting arm to a position substantially parallel to said mounting plate in a nonuse position.
Claim 3
Dependent Claim
19 words
A device as defined in claim 1 wherein said loop comprises a rod covered with a resilient cushioning material.
Claim 4
Dependent Claim
15 words
A device as defined in claim 1 wherein said spring means comprises a coil spring.
Claim 5
Dependent Claim
20 words
A device as defined in claim 1 wherein said detachable means comprises a pair of pressure clamps and wing nuts.
Claim 6
Dependent Claim
36 words
A device as defined in claim 1 wherein said pivotal connecting means includes a substantially U-shaped clamp having a first pivotal mounting means for said rod and a second pivotal mounting means for said mounting arm.
Claim 7
Dependent Claim
34 words
A device as defined in claim 1 further including a support bracket, said support bracket having one end mounted on said mounting plate and having an adjustable ground engaging leg at its other end.
References Cited (Backward Citations)
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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) | 1986-04-04 | 1986-10-04 | 1987-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-04-04 | 1990-10-04 | 1991-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-04-04 | 1994-10-04 | 1995-04-05 | $7700.00 | Window Closed / Lapsed |