US3814054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous roll impregnated with developer liquid and method of making same
Assignee: Yamamoto Kogyosho KK
•
Filing: 1972-10-19
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Granted: 1974-06-04
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Expires: 1992-10-19
Abstract
Abstract A roll and method of making same which is impregnated with a large amount of a developer liquid while substantially excluding ambient air. The pressure of rolling causes the liquid to ooze out of the peripherial surface of the roll in small fixed quantities and to be transferred to sheet material such as paper rolled therewith. Such a roll is capable of copying for an extended period of time without replacement and without necessity of replenishment of the developed liquid.
Inventors
- 👤 M Tajihi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:33
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/18; G03D; G03D5/00; G03D5/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49544; Y10T29/49547; Y10T29/49549; Y10T29/49554
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
26 words
Method as claimed in claim 1, which comprises a further step of covering the resulting roll with a rough mesh fabric made from nonhygroscopic nature fiber.
Claim 2
Dependent Claim
19 words
Method as claimed in claim 1, in which cotton linter pulp is used as said purified cellulose fiber material.
Claim 3
Dependent Claim
30 words
Method as claimed in claim 1, in which said pressing is made in such an extent that the resulting compact roll is of Shore hardness ranging from 40* to 55*.
Claim 4
Dependent Claim
136 words
A fibrous roller for use as an applicator roller for applying liquid at the peripheral surface thereof to a sheet material to be contacted therewith, comprising a plurality of disks arranged in juxtaposed array to form a cylinder body, each of said disks being made of purified cellulose fiber having a Alpha -cellulose content of more than 98 percent and alkali solubility of less than 2 percent, each of said sheets initially being in the form of a sheet having an areal weight ranging from 400 to 500 gr/m2, each of said disks being impregnated with a developer for diazotype photosensitizing sheet paper, said cylindrical body having a total weight within 2 to 3 times that of the dry weight of said disks before impregnation of the latter, said cylindrical body having an abraded peripheral surface.
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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) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |