US3638941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Physical exercise apparatus with user-actuated arm which is movable against a variable bias
Assignee: Individual
•
Filing: 1969-09-09
•
Granted: 1972-02-01
•
Expires: 1989-09-09
Abstract
Abstract A stationary frame carries one or more actuating members which are forcibly movable with reference to the frame from a normal inactive position to a plurality of active positions in response to the application of requisite force upon an engagement portion provided. Springs are associated with the members and oppose their movement to active positions. Adjusting arrangements permit the opposing force offered by the springs to be varied.
Inventors
- 👤 Franz Kulkens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:30
CPC Classifications
A; A63; A63B; A63B21/00; A63B21/02; A63B21/023; A63B21/00058; A63B21/00069; A63B21/00072; A63B21/04; A63B21/15; A63B21/151; A63B21/154; A63B21/40; A63B21/4027; A63B21/4033; A63B21/4035; A63B21/4041; A63B21/4047; A63B23/00; A63B23/035; A63B23/03516; A63B23/03525; A63B21/0407; A63B21/0421; A63B21/0428; A63B21/055; A63B2208/00; A63B2208/02; A63B2208/0242; A63B71/00; A63B71/06; A63B71/0619; A63B71/0622
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
166 words
A physical exercise apparatus, comprising a stationary frame; at least one elongate actuating lever having two spacEd end portions and an arcuate intermediate portion curved to one side of the elongation of said lever; connecting means connecting one of said end portions to said frame for pivotal movement of said lever relative thereto; a plurality of recesses provided in and spaced longitudinally of said arcuate intermediate portion spaced longitudinally of said arcuate intermediate portion of said lever at said one side; an engaging bracket supported on said lever at said one side; movable longitudinally of said lever and being engageable with respective ones of said recesses; and expansion spring means connected intermediate the other side of said lever and said frame with the latter and said bracket, respectively, for opposing pivotal movement of said lever towards said one side with a force whose magnitude varies in dependence upon the engagement of said bracket with a respective recess and the pretension thereby selected for said spring means.
Claim 2
Dependent Claim
166 words
A physical exercise apparatus, comprising a stationary frame; at least one elongate actuating lever having two spacEd end portions and an arcuate intermediate portion curved to one side of the elongation of said lever; connecting means connecting one of said end portions to said frame for pivotal movement of said lever relative thereto; a plurality of recesses provided in and spaced longitudinally of said arcuate intermediate portion spaced longitudinally of said arcuate intermediate portion of said lever at said one side; an engaging bracket supported on said lever at said one side; movable longitudinally of said lever and being engageable with respective ones of said recesses; and expansion spring means connected intermediate the other side of said lever and said frame with the latter and said bracket, respectively, for opposing pivotal movement of said lever towards said one side with a force whose magnitude varies in dependence upon the engagement of said bracket with a respective recess and the pretension thereby selected for said spring means.
Claim 3
Dependent Claim
26 words
An apparatus as defined in claim 1, said spring means being a mechanical expansion spring having opposite ends connected with said frame and said bracket, respectively.
Claim 4
Dependent Claim
14 words
An apparatus as defined in claim 1, said spring means comprising fluid spring means.
Claim 5
Dependent Claim
19 words
An apparatus as defined in claim 3, wherein said fluid spring means comprises a hydraulic cylinder and piston unit.
Claim 6
Dependent Claim
19 words
An apparatus as defined in claim 3, wherein said fluid spring means comprises a pneumatic cylinder and piston unit.
Claim 7
Dependent Claim
47 words
An apparatus as defined in claim 3, wherein said fluid spring means comprises a cylinder member and a fluid-operable piston member slidably received in said cylinder member; and further comprising throttling means for throttling the flow of fluid during relative movement of said piston and cylinder members.
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) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |