US3106009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Helical membrane cutter
Assignee: Telegraph Construction and Maintenance Co Ltd
•
Filing: 1960-03-09
•
Granted: 1963-10-08
•
Expires: 1980-03-09
Abstract
No abstract record available.
Inventors
- 👤 Mullins Godfrey Zillwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:14
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/06; H01B13/18; H01B13/20; H01B13/208; B; B26; B26D; B26D3/00; B26D3/16; Y; Y10; Y10T; Y10T29/00; Y10T29/11; Y10T29/1131; Y10T82/00; Y10T82/25; Y10T82/2527
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
IN APPARATUS FOR CUTTING A MEMBRANE IN THE FORM OF A HELIX FROM A TUBE OF PLASTIC MATERRIAL, THE COMBINATION OF A GUIDE FOR TH TUBE TO BE CUT; A CARRIER MOUNTED FOR ROTATION ABOUT AN AXIS CONCENTRIC WITH THAT OF A TUBE GUIDED BY SAID GUIDE; A CUTTING HEAD COMPRISING A CUTTER ASSOCIATED WITH THE CARRIER FOR ROTATION THEREWITH, SAID CUTTER PROJECTING TRANSVERSELY OF SAID AXIS TO CUT AN INCISION COMPLETELY THROUGH THE WALL OF THE TUBE, AND CARRIER HAVING HELICALLY FORMED INDENTING SURFACES OTHER THAN SAID CUTTER AND SPACED FROM SAID CUTTER LONGITUDINALLY OF SAID AXIS AND LOCATED BETWEEN SAID CUTTER AND SAID GUIDE, SAID INDENTING SURFACES BEING ENGAGEABLE WITH THE UNCUT SURFACES OF THE TUBE FOR ADVANCING THE TUBE TO THE CUTTING HEAD; MEANS FOR HOLDING THE TUBE AGAINST ROTATION; AND MEANS FOR ROTATING THE CARRIER, WHEREBY THE TUBE WILL BE ADVANCED TO THE CUTTING HEAD AT A RATE COORDINATED WITH THE PITCH OF THE HELIX.
Claim 2
Dependent Claim
159 words
IN APPARATUS FOR CUTTING A MEMBRANE IN THE FORM OF A HELIX FROM A TUBE OF PLASTIC MATERRIAL, THE COMBINATION OF A GUIDE FOR TH TUBE TO BE CUT; A CARRIER MOUNTED FOR ROTATION ABOUT AN AXIS CONCENTRIC WITH THAT OF A TUBE GUIDED BY SAID GUIDE; A CUTTING HEAD COMPRISING A CUTTER ASSOCIATED WITH THE CARRIER FOR ROTATION THEREWITH, SAID CUTTER PROJECTING TRANSVERSELY OF SAID AXIS TO CUT AN INCISION COMPLETELY THROUGH THE WALL OF THE TUBE, AND CARRIER HAVING HELICALLY FORMED INDENTING SURFACES OTHER THAN SAID CUTTER AND SPACED FROM SAID CUTTER LONGITUDINALLY OF SAID AXIS AND LOCATED BETWEEN SAID CUTTER AND SAID GUIDE, SAID INDENTING SURFACES BEING ENGAGEABLE WITH THE UNCUT SURFACES OF THE TUBE FOR ADVANCING THE TUBE TO THE CUTTING HEAD; MEANS FOR HOLDING THE TUBE AGAINST ROTATION; AND MEANS FOR ROTATING THE CARRIER, WHEREBY THE TUBE WILL BE ADVANCED TO THE CUTTING HEAD AT A RATE COORDINATED WITH THE PITCH OF THE HELIX.
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) | 1966-10-07 | 1967-04-08 | 1967-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-07 | 1971-04-08 | 1971-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-07 | 1975-04-08 | 1975-10-08 | $7700.00 | Window Closed / Lapsed |