US4063477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for cutting carpet
Assignee: APEX PATTERN Co
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Filing: 1976-08-20
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Granted: 1977-12-20
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Expires: 1996-08-20
Abstract
Abstract An apparatus and method for cutting a piece of pre-shaped carpet to pattern. The apparatus includes a bottom support platen, a common support having depending therefrom, a top pressing platen and vertically-cutting blades. The bottom support platen and the top pressing platen are shaped to conform to the shape of the pre-shaped carpet. The common support is moved vertically down so that the top pressing platen exerts substantial pressure on the carpet, and the common support continues to move down so that the vertically-cutting blades cut the carpet. The common support then moves up, lifting the blades up, followed by the reduction and release of the pressure on the carpet. In a preferred embodiment of the method and apparatus, a peripheral support member and peripheral pressing member are provided to firmly hold the extreme edge of the carpet so that the section of the carpet to be cut is held taut during the cutting operation. In another preferred embodiment, non-horizontal sections of the carpet are cut while the common support is in its fully-down position by means of a non-vertical cutting device which is rigidly attached to the common support.
Inventors
- 👤 Helmut Hantke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:52
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/26; B29C51/30; B29C51/32; B26; B26D; B26D9/00; B26F; B26F1/00; B26F1/38; B26F1/40; B29C51/14; B29C51/145; D; D06; D06H; D06H7/00; Y; Y10; Y10S; Y10S83/00; Y10S83/929; Y10S83/936; Y10S83/939; Y10T; Y10T83/00; Y10T83/04; Y10T83/0524; Y10T83/0529; Y10T83/566; Y10T83/5669; Y10T83/5733; Y10T83/576; Y10T83/5769; Y10T83/748; Y10T83/7487; Y10T83/7493; Y10T83/75
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
176 words
In an apparatus for cutting a carpet or the like to pattern, having bottom support means, top pressing means, and cutting means, wherein the improvement comprises: said bottom support means being adapted for supporting a pre-shaped carpet which is to be cut along pattern lines which extend in both the vertical and horizontal directions, said bottom support means having a top surface whose edges conform to the pattern lines of the carpet and whose top surface shape conforms to the shape of the bottom of the carpet; said top pressing means being adapted for exerting pressure upon the top of the pre-shaped carpet during the cutting operation, said means having a bottom surface whose shape conforms to the shape of the top of the carpet; and said cutting means having a cutting edge which is adapted for initially piercing the carpet at a plurality of spaced points along the pattern lines and which cutting edge will progressively cut the carpet from each pierced point along both directions of the pattern line until the carpet is cut.
Claim 2
Dependent Claim
176 words
In an apparatus for cutting a carpet or the like to pattern, having bottom support means, top pressing means, and cutting means, wherein the improvement comprises: said bottom support means being adapted for supporting a pre-shaped carpet which is to be cut along pattern lines which extend in both the vertical and horizontal directions, said bottom support means having a top surface whose edges conform to the pattern lines of the carpet and whose top surface shape conforms to the shape of the bottom of the carpet; said top pressing means being adapted for exerting pressure upon the top of the pre-shaped carpet during the cutting operation, said means having a bottom surface whose shape conforms to the shape of the top of the carpet; and said cutting means having a cutting edge which is adapted for initially piercing the carpet at a plurality of spaced points along the pattern lines and which cutting edge will progressively cut the carpet from each pierced point along both directions of the pattern line until the carpet is cut.
Claim 3
Dependent Claim
39 words
The apparatus defined in claim 1 wherein the improvement further comprises: second cutting means for cutting into non-horizontal sections of said carpet with a cutting stroke which is substantially perpendicular to the section of the carpet to be cut.
Claim 4
Dependent Claim
17 words
The apparatus defined in claim 1 wherein the cutting means comprises: a cutting edge having pointed saw-teeth.
Claim 5
Dependent Claim
36 words
The apparatus defined in claim 1 wherein: said cutting means is adapted to have its cutting edge slideably engage the edges of the bottom support means so as to cut the carpet in a scissors-like manner.
Claim 6
Dependent Claim
128 words
In a method for cutting a pre-shaped workpiece to pattern along pattern lines which extend in both the vertical and horizontal directions comprising: supporting said workpiece upon a bottom support member having a top surface whose edges conform to the pattern lines and whose top surface shape conforms to the shape of the bottom of the workpiece; applying pressure to the top of the workpiece with a top pressing member having a bottom surface whose shape conforms to the shape of the top of the workpiece; then piercing the workpiece at a plurality of spaced points along the pattern lines; and cutting said workpiece to pattern by progressively cutting said workpiece from each point of piercing in both directions along the pattern line until the workpiece is cut.
Claim 7
Dependent Claim
128 words
In a method for cutting a pre-shaped workpiece to pattern along pattern lines which extend in both the vertical and horizontal directions comprising: supporting said workpiece upon a bottom support member having a top surface whose edges conform to the pattern lines and whose top surface shape conforms to the shape of the bottom of the workpiece; applying pressure to the top of the workpiece with a top pressing member having a bottom surface whose shape conforms to the shape of the top of the workpiece; then piercing the workpiece at a plurality of spaced points along the pattern lines; and cutting said workpiece to pattern by progressively cutting said workpiece from each point of piercing in both directions along the pattern line until the workpiece is cut.
Claim 8
Dependent Claim
83 words
The method defined in claim 5 further including the step of cutting non-horizontal sections of the workpiece comprising: piercing the workpiece at a plurality of spaced points along the pattern lines desired for said non-horizontal sections; and cutting said non-horizontal sections of said workpiece to pattern with a cutting stroke which is substantially perpendicular to the section to be cut by progressively cutting said workpiece from each point of piercing in both directions along the pattern line until said non-horizontal section is cut.
Claim 9
Dependent Claim
21 words
The method defined in claim 5 wherein the step of cutting said workpiece comprises cutting said workpiece in a scissors-like manner.
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) | 1980-12-19 | 1981-06-20 | 1981-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-19 | 1985-06-20 | 1985-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-19 | 1989-06-20 | 1989-12-20 | $7700.00 | Window Closed / Lapsed |