Patent US5572619A successfully refreshed from Google Patents.
Patent US3362699A successfully refreshed from Google Patents.
US3362699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic pipe cutting apparatus
Assignee: Yaskawa Electric Corp
•
Filing: 1964-02-21
•
Granted: 1968-01-09
•
Expires: 1984-02-21
Abstract
No abstract record available.
Inventors
- 👤 Hiratsuka Michio
- 👤 Tanaka Yoichi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:13
CPC Classifications
B; B23; B23K; B23K7/00; B23K7/005; B23K7/006; B23K7/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
AN AUTOMATIC PIPE CUTTING APPARTUS WHEREIN PIPES TO BE JOINED ARE CUT ALONG THE JOINT LINE THEREOF, COMPRISING A SUPPORTING MEANS FOR SUPPORTING AND ROTATING A PIPE TO BE CUT AND WORKED, A CUTTING MEANS SUPPORTED AT AN APPROPRIATE ANGLE WITH RESPECT TO SAID PIPE, AN ELECTRICAL OPERATIONAL MECHANISM ADAPTED TO MOVE SAID CUTTING MEANS ALONG A PATH PARALLEL TO THE AXIS OF SAID PIPE ON THE SIDE CENTER LINE THEREOF, MEANS TO CONVERT RADII (R, R) OF SAID TWO PIPES TO BE JOINED INTO RESPECTIVE ELECTRICAL QUANTITIES, AN ELECTRICAL SERVO-OPERATIONAL DEVICE TO ESTABLISH A RELATION, THAT IS. THE ELECTRICAL QUANTITY REPRESENTING THE RADIUS (R) OF ONE PIPE X COSINE OF THE ROTATIONAL ANGLE (WT) OF SAID PIPE =ELECTRICAL QUANTITY REPRESENTING THE RADIUS (R) OF THE OTHER PIPE X COSINE OF THE ROTATIONAL ANGLE (A) OF SAID OTHER PIPE,
Claim 2
Dependent Claim
139 words
AN AUTOMATIC PIPE CUTTING APPARTUS WHEREIN PIPES TO BE JOINED ARE CUT ALONG THE JOINT LINE THEREOF, COMPRISING A SUPPORTING MEANS FOR SUPPORTING AND ROTATING A PIPE TO BE CUT AND WORKED, A CUTTING MEANS SUPPORTED AT AN APPROPRIATE ANGLE WITH RESPECT TO SAID PIPE, AN ELECTRICAL OPERATIONAL MECHANISM ADAPTED TO MOVE SAID CUTTING MEANS ALONG A PATH PARALLEL TO THE AXIS OF SAID PIPE ON THE SIDE CENTER LINE THEREOF, MEANS TO CONVERT RADII (R, R) OF SAID TWO PIPES TO BE JOINED INTO RESPECTIVE ELECTRICAL QUANTITIES, AN ELECTRICAL SERVO-OPERATIONAL DEVICE TO ESTABLISH A RELATION, THAT IS. THE ELECTRICAL QUANTITY REPRESENTING THE RADIUS (R) OF ONE PIPE X COSINE OF THE ROTATIONAL ANGLE (WT) OF SAID PIPE =ELECTRICAL QUANTITY REPRESENTING THE RADIUS (R) OF THE OTHER PIPE X COSINE OF THE ROTATIONAL ANGLE (A) OF SAID OTHER PIPE,
References Cited (Backward Citations)
US1963537A
Cited
US2974415A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-08 | 1971-07-10 | 1972-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-08 | 1975-07-10 | 1976-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-08 | 1979-07-10 | 1980-01-09 | $7700.00 | Window Closed / Lapsed |