US3769896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Squeegee assembly for photo-copy machines
Assignee: Speed O Print Business Machines Corp
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Filing: 1971-08-16
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Granted: 1973-11-06
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Expires: 1991-08-16
Abstract
Abstract A wringer assembly, embodying engaging rollers, for use in feeding paper through photocopy machines, and having a moisture impervious, flexible wiper blade in yieldable wiping contact with one of the rollers for removing moisture therefrom. One of the rollers has a durometer hardness greater than that of the other roller, and the wiper blade has a durometer hardness less than that of the roller it contacts.
Inventors
- 👤 A Samuels
- 👤 R Wiggerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:48
CPC Classifications
G; G03; G03D; G03D15/00; G03D15/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
112 words
A wringer roller assembly for use in a photocopy machine for feding and drying a sheet of photocopy paper, comprising a. two elongated rollers rotatably mounted in a substantially horizontal plane and in substantially parallel contacting relation to each other for feeding the sheet therebetween, b. the surfaces of both of said rollers being compressible, with the surface of one of said rollers having a durometer hardness greater than that of the other said roller, and c. a flexible, moisture impervious, elongated wiper blade extending substantially horizontally in wiping engagement with the surface of said one roller, the durometer hardness of said wiper blade being less than that of said one roller.
Claim 2
Dependent Claim
112 words
A wringer roller assembly for use in a photocopy machine for feding and drying a sheet of photocopy paper, comprising a. two elongated rollers rotatably mounted in a substantially horizontal plane and in substantially parallel contacting relation to each other for feeding the sheet therebetween, b. the surfaces of both of said rollers being compressible, with the surface of one of said rollers having a durometer hardness greater than that of the other said roller, and c. a flexible, moisture impervious, elongated wiper blade extending substantially horizontally in wiping engagement with the surface of said one roller, the durometer hardness of said wiper blade being less than that of said one roller.
Claim 3
Dependent Claim
25 words
The combination of elements defined in claim 1, wherein the durometer hardness of said one roller is within the range of approximately 60 to 85.
Claim 4
Dependent Claim
25 words
The combination of elements defined in claim 1, wherein the durometer hardness of said other roller is within the range of approximately 25 to 40.
Claim 5
Dependent Claim
42 words
The combination of elements defined in claim 1, wherein the durometer hardness of said one roller is withing the range of approximately 60 to 85, and the durometer hardness of said other roller is within the range of approximately 25 to 40.
Claim 6
Dependent Claim
25 words
The combination of elements defined in claim 1, wherein the durometer hardness of said wiper blade is within the range of approximately 25 to 40.
Claim 7
Dependent Claim
42 words
The combination of elements defined in claim 1, wherein the durometer hardness of said one roller is within the range of Approximately 70 to 75, and the durometer hardness of said other roller is within the range of approximately 30 to 35.
References Cited (Backward Citations)
US2558773A
Cited
US3104603A
Cited
CH396631A
Cited
US3202526A
Cited
US3453138A
Cited
US3626833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |