US3942781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Penetrable support
Assignee: Gerber Technology LLC
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Filing: 1974-07-22
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Granted: 1976-03-09
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Expires: 1994-07-22
Abstract
Abstract A cutting machine having a reciprocating cutting blade is provided with a penetrable support bed for holding limp sheet material during a cutting operation. The support bed is formed from a plurality of flexible bristles held in a closely packed array. The base ends of the bristles are mounted in a binder and the free ends of the bristles have flattened heads which lie in a common plane defining the support surface on which the sheet material is spread. The flattened heads are developed by heating the free ends of the bristles in the array until they are softened and then forming the heads on the free ends. The bristles are preferably made of a thermoplastic material.
Inventors
- 👤 Heinz Joseph Gerber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:41
CPC Classifications
B; B26; B26D; B26D7/00; B26D7/20; B23; B23Q; B23Q1/00; B23Q1/03; B23Q1/032; Y; Y10; Y10S; Y10S83/00; Y10S83/929; Y10S83/936; Y10S83/939; Y10S83/94; Y10S83/941; Y10T; Y10T83/00; Y10T83/889
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
76 words
In combination in a machine having a cutting tool which penetrates through a material in a work operation, the improvement comprising: a penetrable bed for supporting the material under the tool during the work operation and having a plurality of flexible, elongated members supported at their base ends in side-by-side and closely packed relationship with the opposite, free ends bearing enlarged heads lying substantially in a common plane to define a support surface of the bed.
Claim 2
Dependent Claim
76 words
In combination in a machine having a cutting tool which penetrates through a material in a work operation, the improvement comprising: a penetrable bed for supporting the material under the tool during the work operation and having a plurality of flexible, elongated members supported at their base ends in side-by-side and closely packed relationship with the opposite, free ends bearing enlarged heads lying substantially in a common plane to define a support surface of the bed.
Claim 3
Dependent Claim
19 words
The improvement as defined in claim 1 wherein: the flexible, elongated members are bristles formed from a thermoplastic material.
Claim 4
Dependent Claim
24 words
The improvement as defined in claim 1 further including: a binder supporting the elongated members at their base ends in the closely packed relationship.
Claim 5
Dependent Claim
31 words
The improvement as defined in claim 3 wherein: the elongated members are thermoplastic bristles; and the binder comprises a plastic material in which the base ends of the bristles are imbedded.
Claim 6
Dependent Claim
39 words
The improvement as defined in claim 1 wherein the elongated members are bristles having a diameter less than one sixteenth inch (1.6 mm) and wherein the enlarged heads have a diameter at least twice as large as the bristles.
Claim 7
Dependent Claim
27 words
The improvement as defined in claim 1 wherein the bristles are packed in an array of no less than 200 per square inch (31 per sq cm).
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) | 1979-03-09 | 1979-09-08 | 1980-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-09 | 1983-09-08 | 1984-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-09 | 1987-09-08 | 1988-03-09 | $7700.00 | Window Closed / Lapsed |