US3103357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resistance exercising apparatus
Assignee: Individual
•
Filing: 1961-11-28
•
Granted: 1963-09-10
•
Expires: 1981-11-28
Abstract
No abstract record available.
Inventors
- 👤 William E Berne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:24
CPC Classifications
A; A63; A63B; A63B23/00; A63B23/035; A63B23/04; A63B23/0494; A63B21/00; A63B21/012; A63B21/015; A63B21/40; A63B21/4041; A63B21/4047
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
AN ADJUSTABLE RESISTANCE MEANS FOR USE IN EXERCISING APPARATUS, COMPRISING A SUPPORT MEMBER; A MULTIPLE DISK FRICTION CLUTCH MOUNTED ON SAID SUPPORT MEMBER AND INCLUDING A RELATIVELY NON-ROTATABLE DISK AND A RELATIVELY ROTATABLE DISK; A HYDRAULIC CYLINDER AND PISTON MEANS MOUNTED ON SAID SUPPORT MEMBER WITH SAID MULTIPLE DISK FRICTION CLUTCH AND BEING OPERABLE FOR PRESSING THE DISKS OF SAID CLUTCH AGAINST ONE ANOTHER UNDER VARIABLE PRESSURE; HYDRAULIC FLUID WITHIN THE HYDRAULIC CYLINDER THE PRESSURE OF WHICH IS CONTROLLED BY THE RELATIVE DISPLACEMENT OF THE PISTON IN SAID CYLINDER; MEANS FOR DISPLACING SAID PISTON RELATIVELY WITHIN SAID HYDRAULIC CYLINDER; MEANS FOR MEASURING THE FLUID PRESSURE IN SAID HYDRAULIC CYLINDER AND THEREBY AFFORDING AN INDICATION OF THE CLUTCH DISK PRESSURE AND THE FORCE REQUIRED TO EFFECT RELATIVE ROTATION OF THE CLUTCH DISKS; AN OPERATING MEMBER; AND A SHAFT CONNECTING SAID RELATIVELY ROTATABLE DISK TO SAID OPERATING MEMBER.
Claim 2
Dependent Claim
146 words
AN ADJUSTABLE RESISTANCE MEANS FOR USE IN EXERCISING APPARATUS, COMPRISING A SUPPORT MEMBER; A MULTIPLE DISK FRICTION CLUTCH MOUNTED ON SAID SUPPORT MEMBER AND INCLUDING A RELATIVELY NON-ROTATABLE DISK AND A RELATIVELY ROTATABLE DISK; A HYDRAULIC CYLINDER AND PISTON MEANS MOUNTED ON SAID SUPPORT MEMBER WITH SAID MULTIPLE DISK FRICTION CLUTCH AND BEING OPERABLE FOR PRESSING THE DISKS OF SAID CLUTCH AGAINST ONE ANOTHER UNDER VARIABLE PRESSURE; HYDRAULIC FLUID WITHIN THE HYDRAULIC CYLINDER THE PRESSURE OF WHICH IS CONTROLLED BY THE RELATIVE DISPLACEMENT OF THE PISTON IN SAID CYLINDER; MEANS FOR DISPLACING SAID PISTON RELATIVELY WITHIN SAID HYDRAULIC CYLINDER; MEANS FOR MEASURING THE FLUID PRESSURE IN SAID HYDRAULIC CYLINDER AND THEREBY AFFORDING AN INDICATION OF THE CLUTCH DISK PRESSURE AND THE FORCE REQUIRED TO EFFECT RELATIVE ROTATION OF THE CLUTCH DISKS; AN OPERATING MEMBER; AND A SHAFT CONNECTING SAID RELATIVELY ROTATABLE DISK TO SAID OPERATING MEMBER.
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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) | 1966-09-09 | 1967-03-11 | 1967-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-09 | 1971-03-11 | 1971-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-09 | 1975-03-11 | 1975-09-10 | $7700.00 | Window Closed / Lapsed |