Patent US3691886A successfully refreshed from Google Patents.
US3691886A
Expired / Lapsed
US
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Apparatus for cutting an unvulcanized viscoelastic mass
Assignee: Individual
•
Filing: 1970-10-30
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Granted: 1972-09-19
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Expires: 1990-10-30
Abstract
Abstract An unvulcanized viscoelastic mass is cut by a machine which applies tension at the line of cut. While applying tension at the line of cut, the machine also provides a means for maintaining the cut portions in spaced relationship and for continuously moving the mass into the cutting means. The apparatus is especially suitable for cutting silicone gum containing fillers, extenders, process aids and vulcanizing agents. The compounded gum is shipped to the ultimate consumer who vulcanizes the compounded gum to form silicone rubber. The rubber is used in high temperature automotive transmission gaskets, radiator hose, and fan belts.
Inventors
- 👤 Robert M Elsworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:45
CPC Classifications
B; B26; B26D; B26D3/00; B26D3/003; B26D3/006; Y; Y10; Y10T; Y10T83/00; Y10T83/02; Y10T83/202; Y10T83/2074; Y10T83/2083; Y10T83/2092; Y10T83/2192; Y10T83/323; Y10T83/889; Y10T83/97
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
170 words
An apparatus for cutting an unvulcanized viscoelastic mass positioned in a cart capable of being rolled, said mass having a Williams plasticity of at least 200 said apparatus having therein a frame, roller means on said frame such that frame is capable of moving horizontal cutting means mounted on the upper portion of said frame, horizontal deflector means mounted on said frame adjacent to said cutting means, a horizontal transporterseparator means having a shaft thereon and mounted on said frame adjacent to said elevational means and horizontal conveyor means mounted on said frame adjacent to said transporter-separator means comprising the improvement of worm gear means mounted on said shaft of said transporter-separator means and cable means connected to said worm gear means and having connecting means thereon such that cable means can be connected to said cart so that said horizontal-separator means can simultaneously act on the cut viscoelastic mass as well as force said cutting means through said viscoelastic mass through said worm gear means and said cable means.
Claim 2
Independent Claim
170 words
An apparatus for cutting an unvulcanized viscoelastic mass positioned in a cart capable of being rolled, said mass having a Williams plasticity of at least 200 said apparatus having therein a frame, roller means on said frame such that frame is capable of moving horizontal cutting means mounted on the upper portion of said frame, horizontal deflector means mounted on said frame adjacent to said cutting means, a horizontal transporterseparator means having a shaft thereon and mounted on said frame adjacent to said elevational means and horizontal conveyor means mounted on said frame adjacent to said transporter-separator means comprising the improvement of worm gear means mounted on said shaft of said transporter-separator means and cable means connected to said worm gear means and having connecting means thereon such that cable means can be connected to said cart so that said horizontal-separator means can simultaneously act on the cut viscoelastic mass as well as force said cutting means through said viscoelastic mass through said worm gear means and said cable means.
Claim 3
Dependent Claim
14 words
The apparatus of claim 1 further characterized by the cutting means being a wire.
Claim 4
Dependent Claim
14 words
The apparatus of claim 1 further characterized by the cutting means being a band.
Claim 5
Dependent Claim
14 words
The apparatus of claim 1 further characterized by the cutting means being a blade.
Claim 6
Dependent Claim
21 words
The apparatus of claim 1 further characterized by the material being cut having a Williams plasticity of from 300 to 800.
Claim 7
Dependent Claim
25 words
The apparatus of claim 1 further characterized by the material being cut being a silicone compound having a Williams plasticity of from 300 to 800.
Claim 8
Dependent Claim
16 words
The apparatus of claim 1 wherein said transporter-separator means comprises a cylinder having horizontal ribs thereon.
Claim 9
Dependent Claim
28 words
The apparatus of claim 1 wherein said cart has brackets thereon with eyes attached to said brackets and wherein said connecting means on said cable means comprises hooks.
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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) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |