US3555945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutter method and apparatus
Assignee: Deering Milliken Research Corp
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Filing: 1969-08-08
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Granted: 1971-01-19
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Expires: 1989-08-08
Abstract
Abstract This invention is directed to a method and apparatus to automatically increase the pressure on the cutting blade of a score cutter upon the detection of an area of increased thickness in the material approaching the cutter to be cut.
Inventors
- 👤 William P Warthen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:15
CPC Classifications
D; D06; D06H; D06H7/00; D06H7/04; B; B26; B26D; B26D1/00; B26D1/01; B26D1/12; B26D1/14; B26D1/24; B26D1/245; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/0605; Y10T83/525; Y10T83/768; Y10T83/7809; Y10T83/7851; Y10T83/7855
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
69 words
A method of score cutting a running sheet of material comprising the steps of: providing a running length of material, applying a predetermined pressure on a score cutter to score cut the running length of material in the longitudinal direction thereof, sensing an area of increased thickness in said running length of material and momentarily increasing the pressure on said score cutter to cut the area of increased thickness.
Claim 2
Independent Claim
69 words
A method of score cutting a running sheet of material comprising the steps of: providing a running length of material, applying a predetermined pressure on a score cutter to score cut the running length of material in the longitudinal direction thereof, sensing an area of increased thickness in said running length of material and momentarily increasing the pressure on said score cutter to cut the area of increased thickness.
Claim 3
Dependent Claim
14 words
The method of claim 1 wherein air pressure is applied to said score cutter.
Claim 4
Dependent Claim
80 words
Apparatus to score cut a running length of material comprising: means supplying a running length of material, score cutting means operably associated with the running length of material, means to detect an area of increased thickness in the running length of material, means to apply a predetermined pressure to said score cutting means and means to momentarily increase the pressure on said score cutting means upon the detection of an area of increased thickness in the running length of material.
Claim 5
Dependent Claim
80 words
Apparatus to score cut a running length of material comprising: means supplying a running length of material, score cutting means operably associated with the running length of material, means to detect an area of increased thickness in the running length of material, means to apply a predetermined pressure to said score cutting means and means to momentarily increase the pressure on said score cutting means upon the detection of an area of increased thickness in the running length of material.
Claim 6
Dependent Claim
19 words
The structure of claim 3 wherein said means to detect an area of increased thickness is a seam detector.
Claim 7
Dependent Claim
21 words
The structure of claim 4 wherein said seam detector. includes a roller microswitch adapted to contact the running length of material.
Claim 8
Dependent Claim
20 words
The structure of claim 3 wherein said means to apply pressure to said score cutting means is an air cylinder.
Claim 9
Dependent Claim
16 words
The structure of claim 6 wherein said means to apply pressure includes a pneumatic control circuit.
References Cited (Backward Citations)
US2541913A
Cited
US2897893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |