Patent US3726171A successfully refreshed from Google Patents.
US3726171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube cutter
Assignee: Imperial Eastman Corp
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Filing: 1970-10-09
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Granted: 1973-04-10
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Expires: 1990-10-09
Abstract
Abstract A tube cutter having a knife and means for moving the knife across a tube to be cut. The knife is movable so as to have a maximum slicing action at the beginning of the cut.
Inventors
- 👤 R Strybel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:46
CPC Classifications
B; B23; B23D; B23D21/00; B23D21/06; B26; B26D; B26D3/00; B26D3/16; B26D3/169; Y; Y10; Y10T; Y10T83/00; Y10T83/748; Y10T83/7593; Y10T83/869; Y10T83/887; Y10T83/8871
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A cutting tool comprising: means for supporting a workpiece to be cut; a knife for cutting said workpiece; means for mounting said knife adjacent said supporting means for movement concurrently across and into said workpiece with the ratio of the movement of the knife across said workpiece to the movement of the knife into said workpiece being greatest at the position of initial contact of the knife with the workpiece thereby to provide maximum slicing action at the contact position for facilitated cutting of the workpiece; said knife defining a cutting edge having an inner portion extending parallel to the direction of movement of the knife across the workpiece and into the workpiece; and means for forcibly moving said knife on said supporting means.
Claim 2
Dependent Claim
124 words
A cutting tool comprising: means for supporting a workpiece to be cut; a knife for cutting said workpiece; means for mounting said knife adjacent said supporting means for movement concurrently across and into said workpiece with the ratio of the movement of the knife across said workpiece to the movement of the knife into said workpiece being greatest at the position of initial contact of the knife with the workpiece thereby to provide maximum slicing action at the contact position for facilitated cutting of the workpiece; said knife defining a cutting edge having an inner portion extending parallel to the direction of movement of the knife across the workpiece and into the workpiece; and means for forcibly moving said knife on said supporting means.
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) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |