US4287984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Belt with plural layers used in the automatic document feeding apparatus
Assignee: Konica Minolta Inc
•
Filing: 1980-01-28
•
Granted: 1981-09-08
•
Expires: 2000-01-28
Abstract
Abstract A document feeding belt for the use of an automatic document feeding apparatus in that at least two layers one of which is an internal layer composed of flexible material and the other is an external layer composed of flexible material that is hard to be stained, are used.
Inventors
- 👤 Syuzi Okamoto
- 👤 Naoto Mukai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:01
CPC Classifications
B; B65; B65H; B65H5/00; B65H5/02; B65H5/021; B65H5/026; B65H5/025; G; G03; G03G; G03G15/00; G03G15/60; G03G15/602; B65H2404/00; B65H2404/20; B65H2404/26; B65H2404/268; Y; Y10; Y10S; Y10S428/00; Y10S428/909; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/31917
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
66 words
In a document feeding apparatus for use in an electrophotographic copying machine, the improvement comprising a document feeding belt having at least an internal layer and an external layer, said internal layer consisting essentially of chloroprene rubber which is flexible and has a high coefficient of friction, said external layer consisting essentially of chlorosulfonated polyethylene which is flexible, has high whiteness, and is difficult to stain.
Claim 2
Dependent Claim
66 words
In a document feeding apparatus for use in an electrophotographic copying machine, the improvement comprising a document feeding belt having at least an internal layer and an external layer, said internal layer consisting essentially of chloroprene rubber which is flexible and has a high coefficient of friction, said external layer consisting essentially of chlorosulfonated polyethylene which is flexible, has high whiteness, and is difficult to stain.
Claim 3
Dependent Claim
22 words
An apparatus according to claim 1 wherein said belt further comprises an intermediate polyester layer between said internal and said external layers.
Claim 4
Dependent Claim
66 words
In a method of feeding documents in an electrophotographic copying machine, the improvement comprising providing a document feeding belt having at least an internal layer and an external layer, said internal layer consisting essentially of chloroprene rubber which is flexible and has a high coefficient of friction, said external layer consisting essentially of chlorosulfonated polyethylene which is flexible, has high whiteness, and is difficult to stain.
Claim 5
Dependent Claim
66 words
In a method of feeding documents in an electrophotographic copying machine, the improvement comprising providing a document feeding belt having at least an internal layer and an external layer, said internal layer consisting essentially of chloroprene rubber which is flexible and has a high coefficient of friction, said external layer consisting essentially of chlorosulfonated polyethylene which is flexible, has high whiteness, and is difficult to stain.
Claim 6
Dependent Claim
22 words
A method according to claim 3 wherein said belt further comprises an intermediate polyester layer between said internal and said external layers.
References Cited (Backward Citations)
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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) | 1984-09-07 | 1985-03-09 | 1985-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-07 | 1989-03-09 | 1989-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-07 | 1993-03-09 | 1993-09-08 | $7700.00 | Window Closed / Lapsed |