Patent US2302385A successfully refreshed from Google Patents.
Patent US3330366A successfully refreshed from Google Patents.
US3330366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable tube end cutting tool
Assignee: LOWRY DEV CORP
•
Filing: 1965-04-29
•
Granted: 1967-07-11
•
Expires: 1985-04-29
Abstract
No abstract record available.
Inventors
- 👤 Robert D Lowry
- 👤 Russell B Strout
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:42
CPC Classifications
B; B23; B23B; B23B5/00; B23B5/16; B23B5/161; B23B5/162; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1037; Y10T279/1041; Y10T279/1054; Y10T279/1058
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
A TUBE END CUTTING TOOL COMPRISING AN EXPANSIBLE CHUCK, A ROTARY CUTTER HEAD MOUNTED IN OPPOSED SPACED RELATION TO SAID CHUCK FOR MOVEMENT TOWARDS AND AWAY FROM SAID CHUCK, MEANS FOR MOVING SAID CUTTER HEAD TOWARDS AND AWAY FROM SAID CHUCK, A PNEUMATIC MOTOR, INDEPENDENT OF SAID CUTTER HEAD MOVING MEANS, MOUNTED BEHIND SAID CUTTER HEAD, A PULL ROD EXTENDING THROUGH SAID ROTARY CUTTER HEAD AND CONNECTING SAID MOTOR TO EXPANSIBLE PARTS OF SAID CHUCK, FOR EXPANDING SAID CHUCK WHILE MAINTAINING THE SPACING BETWEEN SAID CUTTER HEAD AND SAID CHUCK UNCHANGED, A SEPARATE PNEUMATIC MOTOR FOR ROTATING SAID CUTTER HEAD, AIR LINES FOR SUPPLYING AIR TO BOTH SAID PNEUMATIC MOTORS FROM A COMMON SOURCE OF AIR UNDER PRESSURE, MANUALLY OPERABLE VALVE MEANS INTERPOSED IN SAID AIR LINES TO OPEN AND CLOSE SAID AIR LINES AND MEANS COOPERATING WITH THE VALVE MEANS IN SAID PULL ROD MOTOR AIR SUPPLY LINE TO PREVENT OPENING OF THE VALVE MEANS IN SAID CUTTER HEAD MOTOR AIR SUPPLY LINE EXCEPT WHEN SAID PULL ROD MOTOR VALVE IS SET TO RETRACT SAID PULL ROD TO EXPAND SAID CHUCK.
Claim 2
Dependent Claim
182 words
A TUBE END CUTTING TOOL COMPRISING AN EXPANSIBLE CHUCK, A ROTARY CUTTER HEAD MOUNTED IN OPPOSED SPACED RELATION TO SAID CHUCK FOR MOVEMENT TOWARDS AND AWAY FROM SAID CHUCK, MEANS FOR MOVING SAID CUTTER HEAD TOWARDS AND AWAY FROM SAID CHUCK, A PNEUMATIC MOTOR, INDEPENDENT OF SAID CUTTER HEAD MOVING MEANS, MOUNTED BEHIND SAID CUTTER HEAD, A PULL ROD EXTENDING THROUGH SAID ROTARY CUTTER HEAD AND CONNECTING SAID MOTOR TO EXPANSIBLE PARTS OF SAID CHUCK, FOR EXPANDING SAID CHUCK WHILE MAINTAINING THE SPACING BETWEEN SAID CUTTER HEAD AND SAID CHUCK UNCHANGED, A SEPARATE PNEUMATIC MOTOR FOR ROTATING SAID CUTTER HEAD, AIR LINES FOR SUPPLYING AIR TO BOTH SAID PNEUMATIC MOTORS FROM A COMMON SOURCE OF AIR UNDER PRESSURE, MANUALLY OPERABLE VALVE MEANS INTERPOSED IN SAID AIR LINES TO OPEN AND CLOSE SAID AIR LINES AND MEANS COOPERATING WITH THE VALVE MEANS IN SAID PULL ROD MOTOR AIR SUPPLY LINE TO PREVENT OPENING OF THE VALVE MEANS IN SAID CUTTER HEAD MOTOR AIR SUPPLY LINE EXCEPT WHEN SAID PULL ROD MOTOR VALVE IS SET TO RETRACT SAID PULL ROD TO EXPAND SAID CHUCK.
References Cited (Backward Citations)
US399317A
Cited
US2213379A
Cited
US2746497A
Cited
US3059514A
Cited
US3086783A
Cited
US3141510A
Cited
US3227483A
Cited
US3149682A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |