US3314488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulically operated tool
Assignee: Vinters Armstrongs Ltd
•
Filing: 1964-05-13
•
Granted: 1967-04-18
•
Expires: 1984-05-13
Abstract
No abstract record available.
Inventors
- 👤 Chester-Browne Christopher Val
- 👤 Addison Edward
- 👤 Mccandlish David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:16
CPC Classifications
B; B25; B25D; B25D9/00; B25D9/06; B25D9/12; B25D9/14; B25D9/145; Y; Y10; Y10S; Y10S173/00; Y10S173/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A HYDRAULICALLY OPERATED TOOL COMPRISING A BODY, A PORTED CYLINDER ROTATABLY CARRIED IN THE BODY AND MAINTAINED AGAINST AXIAL MOVEMENT WITH RESPECT TO THE BODY, A PISTON SLIDABLY ENTERED IN THE CYLINDER, A TOOL HEAD FOR ENGAGING THE WORK ON WHICH THE TOOL IS TO OPERATE, MEANS ATTACHING THE TOOL HEAD TO THE BODY TO PERMIT LIMITED MOVEMENT OF THE TOOL HEAD RELATIVE TO THE BODY, AN ELEMENT CONNECTED TO THE PISTON FOR IMPARTING, UPON RECIPROCATION OF THE PISTON IN THE CYLINDER, MOTION TO SAID TOOL HEAD, AN INLET FOR CONNECTION TO A SOURCE OF LIQUID UNDER PRESSURE, AND MOTOR MEANS FOR CONTINUOUSLY ROTATING SAID CYLINDER, THE BODY BEING FORMED WITH DUCTING LEADING FROM SAID INLET TO CO-OPERATE WITH THE PORTING IN SAID CYLINDER WHICH, UPON ROTATION, CONTROLS ADMISSION AND EXHAUST OF LIQUID TO AND FROM SAID CYLINDER TO RECIPROCATE SAID PISTON WITHIN THE CYLINDER.
Claim 2
Dependent Claim
145 words
A HYDRAULICALLY OPERATED TOOL COMPRISING A BODY, A PORTED CYLINDER ROTATABLY CARRIED IN THE BODY AND MAINTAINED AGAINST AXIAL MOVEMENT WITH RESPECT TO THE BODY, A PISTON SLIDABLY ENTERED IN THE CYLINDER, A TOOL HEAD FOR ENGAGING THE WORK ON WHICH THE TOOL IS TO OPERATE, MEANS ATTACHING THE TOOL HEAD TO THE BODY TO PERMIT LIMITED MOVEMENT OF THE TOOL HEAD RELATIVE TO THE BODY, AN ELEMENT CONNECTED TO THE PISTON FOR IMPARTING, UPON RECIPROCATION OF THE PISTON IN THE CYLINDER, MOTION TO SAID TOOL HEAD, AN INLET FOR CONNECTION TO A SOURCE OF LIQUID UNDER PRESSURE, AND MOTOR MEANS FOR CONTINUOUSLY ROTATING SAID CYLINDER, THE BODY BEING FORMED WITH DUCTING LEADING FROM SAID INLET TO CO-OPERATE WITH THE PORTING IN SAID CYLINDER WHICH, UPON ROTATION, CONTROLS ADMISSION AND EXHAUST OF LIQUID TO AND FROM SAID CYLINDER TO RECIPROCATE SAID PISTON WITHIN THE CYLINDER.
References Cited (Backward Citations)
US784703A
Cited
US912234A
Cited
US1419269A
Cited
GB298935A
Cited
US1784012A
Cited
US2851010A
Cited
US3204534A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |