Patent US3273368A successfully refreshed from Google Patents.
US3273368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal working
Assignee: Lodge and Shipley Co
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Filing: 1963-10-03
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Granted: 1966-09-20
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Expires: 1983-10-03
Abstract
No abstract record available.
Inventors
- 👤 Claus L Sporck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:03
CPC Classifications
B; B21; B21D; B21D22/00; B21D22/14; B21D22/16; B21B; B21B23/00; B21C; B21C3/00; B21C3/02; B21C3/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A ROLLER HEAD FOR A TUBE FORMING MACHINE COMPRISING: A FRAME FORMED WITH A CENTRAL BORE TO ACCOMMODATE A TUBE TO BE WORKED; MEANS ON SAID FRAME FOR MOUNTING THE FRAME FOR ROTATION ABOUT AN AXIS EXTENDING THROUGH SAID BORE, SAID ROTATIONAL AXIS BEING COAXIAL WITH THE AXIS OF THE TUBE TO BE WORKED; A FIRST ROLLER IN THE FORM OF A RING HAVING AN INTERIOR, ANNULAR WORKING SURFACE SURROUNDING SAID AXIS, THE ROLLER WORKING SURFACE BEING ENGAGEABLE WITH A TUBE TO BE WORKED; A SLIDE SURROUNDING SAID FIRST ROLLER; BEARING MEANS CONNECTED BETWEEN SAID SLIDE AND SAID FIRST ROLLER AND PROVIDING FOR THE ROLLER TO BE ROTATABLE RELATIVE TO THE SLIDE; MEANS CONNECTING SAID SLIDE WITH SAID FRAME FOR MOVEMENT IN A DIRECTION TO ADJUST THE WORKING SURFACE OF SAID FIRST ROLLER TOWARD AND AWAY FROM SAID ROTATIONAL AXIS;
Claim 2
Dependent Claim
140 words
A ROLLER HEAD FOR A TUBE FORMING MACHINE COMPRISING: A FRAME FORMED WITH A CENTRAL BORE TO ACCOMMODATE A TUBE TO BE WORKED; MEANS ON SAID FRAME FOR MOUNTING THE FRAME FOR ROTATION ABOUT AN AXIS EXTENDING THROUGH SAID BORE, SAID ROTATIONAL AXIS BEING COAXIAL WITH THE AXIS OF THE TUBE TO BE WORKED; A FIRST ROLLER IN THE FORM OF A RING HAVING AN INTERIOR, ANNULAR WORKING SURFACE SURROUNDING SAID AXIS, THE ROLLER WORKING SURFACE BEING ENGAGEABLE WITH A TUBE TO BE WORKED; A SLIDE SURROUNDING SAID FIRST ROLLER; BEARING MEANS CONNECTED BETWEEN SAID SLIDE AND SAID FIRST ROLLER AND PROVIDING FOR THE ROLLER TO BE ROTATABLE RELATIVE TO THE SLIDE; MEANS CONNECTING SAID SLIDE WITH SAID FRAME FOR MOVEMENT IN A DIRECTION TO ADJUST THE WORKING SURFACE OF SAID FIRST ROLLER TOWARD AND AWAY FROM SAID ROTATIONAL AXIS;
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |