US3071980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive-tensioning apparatus
Assignee: Individual
•
Filing: 1960-05-31
•
Granted: 1963-01-08
•
Expires: 1980-05-31
Abstract
No abstract record available.
Inventors
- 👤 Carl T Brewer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:09
CPC Classifications
F; F16; F16H; F16H7/00; F16H7/08; F16H7/10; F16H7/12; F16H7/1254; F16H7/1281; F16H2007/0876; F16H2007/088; F16H2007/0889; F16H2007/0893
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
225 words
A DRIVE-TENSIONING APPARATUS FOR A FLEXIBLE DRIVE ELEMENT COMPRISING A BASE, THE BASE INCLUDING A PAD PROVIDED WITH A PLURALITY OF AXIAL LANDS AND GROOVES, AN ARM INCLUDING A HUB PROVIDED WITH A PLURALITY OF COACTING AXIAL LANDS AND GROOVES, SAID ARM HUB BEING ROTATIVELY MOUNTED TO SAID BASE PAD, THE COACTING LANDS AND GROOVES OF SAID ARM HUB AND BASE PAD INTERFITTING IN DIFFERENT ANGULAR POSITIONS OF SAID ARM TO PROVIDE A ROUGH ADJUSTMENT, MEANS SELECTIVELY FIXING SAID ARM IN AN ADJUSTED ANGULAR POSITION ON SAID BASE, A MEMBER MOUNTED TO SAID ARM IN SPACED RELATION TO THE HUB AND ENGAGING THE DRIVE ELEMENT, THE ARM BEING ROTATABLE TO PROVIDE A QUICK BUT ROUGH ADJUSTMENT OF THE DRIVE ELEMENT TENSION WITHIN A WIDE RANGE, PIVOT MEANS PIVOTALLY MOUNTING SAID BASE AT ONE SIDE OF SAID ARM HUB, THE BASE BEING PROVIDED WITH AN ARCUATE SLOT AT THE OTHER SIDE OF SAID ARM HUB, THE ARCUATE SLOT EXTENDING IN A DIRECTION TRANSVERSE TO THE DRIVE ELEMENT, AND A FASTENING MEANS EXTENDING THROUGH SAID SLOT TO PERMIT PIVOTAL MOVEMENT OF THE BASE WITHIN A RANGE DETERMINED BY SAID SLOT TO PROVIDE A FINER ADJUSTMENT OF THE DRIVE ELEMENT TENSION WITHIN A MORE NARROW RANGE IN A GIVEN ANGULAR POSITION OF SAID ARM, SAID PIVOT MEANS AND FASTENING MEANS SELECTIVELY FIXING SAID BASE IN ADJUSTED PIVOTAL POSITION.
Claim 2
Dependent Claim
225 words
A DRIVE-TENSIONING APPARATUS FOR A FLEXIBLE DRIVE ELEMENT COMPRISING A BASE, THE BASE INCLUDING A PAD PROVIDED WITH A PLURALITY OF AXIAL LANDS AND GROOVES, AN ARM INCLUDING A HUB PROVIDED WITH A PLURALITY OF COACTING AXIAL LANDS AND GROOVES, SAID ARM HUB BEING ROTATIVELY MOUNTED TO SAID BASE PAD, THE COACTING LANDS AND GROOVES OF SAID ARM HUB AND BASE PAD INTERFITTING IN DIFFERENT ANGULAR POSITIONS OF SAID ARM TO PROVIDE A ROUGH ADJUSTMENT, MEANS SELECTIVELY FIXING SAID ARM IN AN ADJUSTED ANGULAR POSITION ON SAID BASE, A MEMBER MOUNTED TO SAID ARM IN SPACED RELATION TO THE HUB AND ENGAGING THE DRIVE ELEMENT, THE ARM BEING ROTATABLE TO PROVIDE A QUICK BUT ROUGH ADJUSTMENT OF THE DRIVE ELEMENT TENSION WITHIN A WIDE RANGE, PIVOT MEANS PIVOTALLY MOUNTING SAID BASE AT ONE SIDE OF SAID ARM HUB, THE BASE BEING PROVIDED WITH AN ARCUATE SLOT AT THE OTHER SIDE OF SAID ARM HUB, THE ARCUATE SLOT EXTENDING IN A DIRECTION TRANSVERSE TO THE DRIVE ELEMENT, AND A FASTENING MEANS EXTENDING THROUGH SAID SLOT TO PERMIT PIVOTAL MOVEMENT OF THE BASE WITHIN A RANGE DETERMINED BY SAID SLOT TO PROVIDE A FINER ADJUSTMENT OF THE DRIVE ELEMENT TENSION WITHIN A MORE NARROW RANGE IN A GIVEN ANGULAR POSITION OF SAID ARM, SAID PIVOT MEANS AND FASTENING MEANS SELECTIVELY FIXING SAID BASE IN ADJUSTED PIVOTAL POSITION.
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |