US3611928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ink supply regulation device for offset printing press
Assignee: Ricoh Co Ltd
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Filing: 1969-08-19
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Granted: 1971-10-12
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Expires: 1989-08-19
Abstract
Abstract An ink supply regulating device for an offset press wherein a cam rod is connected through a rotative means with a regulating plate determining the quantity of ink supplied. A plurality of recesses are formed in the cam rod in varied arrangement. The rotative means is either a plurality of rollers or a rockable member and the setting of the regulating plate is determined by the member of recesses into which the rollers or rockable member are received as the cam rod is rotated.
Inventors
- 👤 Tamaki Kaneko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:58
CPC Classifications
B; B41; B41F; B41F31/00; B41F31/02; B41F31/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
176 words
An ink supply regulating device for an offset printing press comprising a rotatable ink roller having a longitudinal axis; a regulating plate mounting member; a regulating plate fixed only at its upper end to said mounting member and having its lower end closely disposed to said ink roller to define a wedge-shaped area therebetween for the ink supply; a bore formed within said mounting member, said bore being parallel to said roller axis; an elongated cam rod rotatably mounted within said bore, said cam rod having a plurality of recesses formed in its surface; means having rotative movement positioned between and being in contact with both said cam rod and said regulating plate; and the spacing of said recesses in said cam rod surface being predetermined so that rotation of said cam rod allows said means to selectively move into one or more of said recesses for different degrees of said rotative movement to provide corresponding movement of said lower end of said regulating plate to thereby determine the amount of ink supplied to said roller.
Claim 2
Dependent Claim
176 words
An ink supply regulating device for an offset printing press comprising a rotatable ink roller having a longitudinal axis; a regulating plate mounting member; a regulating plate fixed only at its upper end to said mounting member and having its lower end closely disposed to said ink roller to define a wedge-shaped area therebetween for the ink supply; a bore formed within said mounting member, said bore being parallel to said roller axis; an elongated cam rod rotatably mounted within said bore, said cam rod having a plurality of recesses formed in its surface; means having rotative movement positioned between and being in contact with both said cam rod and said regulating plate; and the spacing of said recesses in said cam rod surface being predetermined so that rotation of said cam rod allows said means to selectively move into one or more of said recesses for different degrees of said rotative movement to provide corresponding movement of said lower end of said regulating plate to thereby determine the amount of ink supplied to said roller.
Claim 3
Dependent Claim
48 words
An ink supply regulating device according to claim 1 in which an elongated slot parallel to said bore is provided in open communication on both sides respectively with said bore and said regulating plate, and said means comprises a plurality of rollers loosely rotatable in said elongated slot.
Claim 4
Dependent Claim
43 words
An ink supply regulating device according to claim 2 in which said plurality of recesses have a predetermined varied spacing and axial alignment arrangement so that in different rotative positions of said cam rod different numbers of rollers are received in said recesses.
Claim 5
Dependent Claim
45 words
An ink supply regulating device according to claim 1 wherein said means comprises a rockable member of triangular shape having one edge in contact with said regulating plate and the other edge adapted to be received within said recesses during rotation of said cam rod.
Claim 6
Dependent Claim
60 words
An ink supply regulating device according to claim 3 in which a knob having an index mark therein extends from said cam rod, graduated scales are formed on said mounting member individually corresponding with an individual variation in the recess arrangement so that alignment of said index mark with an individual scale provides an indication of a selective ink supply.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |