Patent US3730031A successfully refreshed from Google Patents.
US3730031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for continually cutting blanks with tridimensional surfaces from foam or the like material
Assignee: Individual
•
Filing: 1971-08-17
•
Granted: 1973-05-01
•
Expires: 1991-08-17
Abstract
Abstract Apparatus for cutting tridimensional surfaces from foam or like material in which the foam is compressed by two vertically adjustable rollers in the cutting area and moved relative to a cutter. At least one of such rollers is provided with a shaped casing or circumferential surface, and a flexible conveyor belt is interposed between each of the rollers and the foam material for pulling the foam material through the cutting area.
Inventors
- 👤 W Huttemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:27
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/56; B29C44/5627; B29C44/5654; B26; B26D; B26D3/00; B26D3/28; B26D3/281; Y; Y10; Y10T; Y10T83/00; Y10T83/02; Y10T83/0267; Y10T83/0296; Y10T83/343; Y10T83/647; Y10T83/6584; Y10T83/869; Y10T83/8725
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
90 words
Apparatus for cutting blanks with tridimensional surfaces from foam or like material, in which the foam material plates used as starting material are compressed in the cutting area and move relative to a cutter, characterized in that the apparatus has two rollers mutually vertical adjustable in the cutting area between which the foam material passes, at least one of such rollers having a shaped circumferential surface, and a flexible conveyor belt passing between each of the rollers and the foam material for pulling the foam material through the cutting area.
Claim 2
Dependent Claim
90 words
Apparatus for cutting blanks with tridimensional surfaces from foam or like material, in which the foam material plates used as starting material are compressed in the cutting area and move relative to a cutter, characterized in that the apparatus has two rollers mutually vertical adjustable in the cutting area between which the foam material passes, at least one of such rollers having a shaped circumferential surface, and a flexible conveyor belt passing between each of the rollers and the foam material for pulling the foam material through the cutting area.
Claim 3
Dependent Claim
24 words
The apparatus of claim 1, characterized in that the cutter which splits the foam material is adjusted according to a program during the operation.
Claim 4
Dependent Claim
17 words
The apparatus of claim 1, characterized in that said conveyor belts are driven independently of said rollers.
Claim 5
Dependent Claim
25 words
The apparatus of claim 1, characterized in that a friction-reducing intermediate layer is arranged between each of said conveyor belts and said rollers associated therewith.
Claim 6
Dependent Claim
36 words
The apparatus of claim 4, characterized in that said intermediate layers consist of at least one tensioned strip or tape of flexible material enveloping the associated roller a greater circumferential extent than the associated conveyor belt.
Claim 7
Dependent Claim
45 words
The apparatus of claim 5, characterized in that each of said intermediate layers consists of several parallel strips or tapes passing over the associated roller in a spaced manner, both ends of which strips or tapes are fastened at fixed points spaced from the roller.
Claim 8
Dependent Claim
15 words
The apparatus of claim 5, characterized in that the strips or tapes consist of polytetrafluoroethylene.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-30 | 1976-10-30 | 1977-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-30 | 1980-10-30 | 1981-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-30 | 1984-10-30 | 1985-05-01 | $7700.00 | Window Closed / Lapsed |