Patent US3101915A successfully refreshed from Google Patents.
US3101915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for controlling tension in a running web
Assignee: Cameron Machine Co
•
Filing: 1962-05-23
•
Granted: 1963-08-27
•
Expires: 1982-05-23
Abstract
No abstract record available.
Inventors
- 👤 Aaron Charles
- 👤 Thomas J Crowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:08
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/04; B65H23/044; B65H23/06; B65H23/063; B65H2403/00; B65H2403/70; B65H2403/72; B65H2403/725; B65H2403/7253
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
IN APPARATUS FOR CONTROLLING TENSION IN A RUNNING WEB, A COMBINATION COMPRISING A FLUID-PRESSURE OPERATED BRAKE COACTING WITH THE WEB IN OPPOSITION TO A FORCE LENGTHWISELY ACTUATING IT A GUIDE MEMBER IN ENGAGEMENT WITH THE WEB AND MOVABLE IN RESPONSE TO TENSION VARIATIONS THEREIN, AND A FLUID-PRESSURE SYSTEM OPERATIVELY ARRANGED BETWEEN SAID GUIDE MEMBER AND BRAKE FOR OPERATING THE LATTER; SAID SYSTEM COMPRISING A TENSION-SENSING ELEMENT CONNECTED TO AND CONSTRAINED TO MOVE WITH SAID GUIDE MEMBER AND PARTIALLY DEFINING A HYDRAULIC CHAMBER IN A STATIONARY HYDRAULIC CYLINDER, A TENSION-SENSING VALVE, A CLOSED COLUM OF LIQUED INTERCONNECTING SAID CHAMBER AND SAID VALVE, CAUSING THE LATTER TO OPERATE IN RESPOPNSE TO VARIATIONS IN THE PRESSURE OF LIQUID IN SAID COLUMN TO ESTABLISH PROPORTIONALLY SIMILAR VARIATIONS IN THE OUTPUT PRESSURE OF SAID VALVE, AND A RATIO VALVE COACTING WITH SAID BRAKE TO CONTROL THE LATTER''S OPERA-
Claim 2
Dependent Claim
143 words
IN APPARATUS FOR CONTROLLING TENSION IN A RUNNING WEB, A COMBINATION COMPRISING A FLUID-PRESSURE OPERATED BRAKE COACTING WITH THE WEB IN OPPOSITION TO A FORCE LENGTHWISELY ACTUATING IT A GUIDE MEMBER IN ENGAGEMENT WITH THE WEB AND MOVABLE IN RESPONSE TO TENSION VARIATIONS THEREIN, AND A FLUID-PRESSURE SYSTEM OPERATIVELY ARRANGED BETWEEN SAID GUIDE MEMBER AND BRAKE FOR OPERATING THE LATTER; SAID SYSTEM COMPRISING A TENSION-SENSING ELEMENT CONNECTED TO AND CONSTRAINED TO MOVE WITH SAID GUIDE MEMBER AND PARTIALLY DEFINING A HYDRAULIC CHAMBER IN A STATIONARY HYDRAULIC CYLINDER, A TENSION-SENSING VALVE, A CLOSED COLUM OF LIQUED INTERCONNECTING SAID CHAMBER AND SAID VALVE, CAUSING THE LATTER TO OPERATE IN RESPOPNSE TO VARIATIONS IN THE PRESSURE OF LIQUID IN SAID COLUMN TO ESTABLISH PROPORTIONALLY SIMILAR VARIATIONS IN THE OUTPUT PRESSURE OF SAID VALVE, AND A RATIO VALVE COACTING WITH SAID BRAKE TO CONTROL THE LATTER''S OPERA-
References Cited (Backward Citations)
US2755032A
Cited
US2974893A
Cited
US2974894A
Cited
US3071300A
Cited
US3057574A
Cited
US3072360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |