Patent US3176590A successfully refreshed from Google Patents.
US3176590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamping device
Assignee: Milacron Inc
•
Filing: 1961-09-01
•
Granted: 1965-04-06
•
Expires: 1981-09-01
Abstract
No abstract record available.
Inventors
- 👤 Herbert R Uhtenwoldt
- 👤 Albert H Dall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:17
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/28; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/117; B23B31/1177; B23B31/1178; F; F15; F15B; F15B15/00; F15B15/20; F15B15/26; F15B15/262; Y; Y10; Y10S; Y10S279/00; Y10S279/907; Y10T; Y10T279/00; Y10T279/12; Y10T279/1241
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A CLAMPING DEVICE FOR HOLDING A PISTON ROD AGAINST MOVEMENT RELATIVE TO AN OPERATING CYLINDER IN WHICH IT WORKS COMPRISING AN AUXILIARY CYLINDER SECURED TO ONE END OF THE OPERATING CYLINDER WITH THE PISTON ROD PASSING THROUGH THE CENTER OF THE AUXILIARY CYLINDER, A PISTON IN SAID AUXILIARY CYLINDER SURROUNDING SAID PISTON ROD AND MOVEABLE WITH RESPECT THERETO, A PLURALITY OF CLAMPING DISCS SURROUNDING SAID ROD WITHIN SAID AUXILIARY CYLINDER BETWEEN THE PISTON AND THE END OF THE OPERATING CYLINDER, A HYDRAULIC CONNECTION TO THE DISTAL END OF SAID AUXILIARY CYLINDER TO ADMIT PRESSURE THERETO AND CAUSE SAID PISTON TO COMPRESS THE DISCS AND CLAMP THE PISTON ROD, AND A PORT COMMUNICATIVELY CONNECTING THE PROXIMAL END OG SAID AUXILIARY CYLINDER WITH THE ADJACENT END OF THE OPERATING CYLINDER TO CAUSE THE PISTON TO BE RETURNED TO ITS ROD RELEASING POSITION WHEN PRESSURE IS ADMITTED TO THE OPERATING CYLINDER TO EFFECT ACTUATION OF THE PISTON ROD.
Claim 2
Dependent Claim
155 words
A CLAMPING DEVICE FOR HOLDING A PISTON ROD AGAINST MOVEMENT RELATIVE TO AN OPERATING CYLINDER IN WHICH IT WORKS COMPRISING AN AUXILIARY CYLINDER SECURED TO ONE END OF THE OPERATING CYLINDER WITH THE PISTON ROD PASSING THROUGH THE CENTER OF THE AUXILIARY CYLINDER, A PISTON IN SAID AUXILIARY CYLINDER SURROUNDING SAID PISTON ROD AND MOVEABLE WITH RESPECT THERETO, A PLURALITY OF CLAMPING DISCS SURROUNDING SAID ROD WITHIN SAID AUXILIARY CYLINDER BETWEEN THE PISTON AND THE END OF THE OPERATING CYLINDER, A HYDRAULIC CONNECTION TO THE DISTAL END OF SAID AUXILIARY CYLINDER TO ADMIT PRESSURE THERETO AND CAUSE SAID PISTON TO COMPRESS THE DISCS AND CLAMP THE PISTON ROD, AND A PORT COMMUNICATIVELY CONNECTING THE PROXIMAL END OG SAID AUXILIARY CYLINDER WITH THE ADJACENT END OF THE OPERATING CYLINDER TO CAUSE THE PISTON TO BE RETURNED TO ITS ROD RELEASING POSITION WHEN PRESSURE IS ADMITTED TO THE OPERATING CYLINDER TO EFFECT ACTUATION OF THE PISTON ROD.
References Cited (Backward Citations)
US1362990A
Cited
US2404385A
Cited
US2707108A
Cited
FR1132160A
Cited
US2845902A
Cited
US2844223A
Cited
US2889895A
Cited
US2988058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |