US3659084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Predetermined counter for electrostatic copying apparatus
Assignee: Agfa Gevaert AG
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Filing: 1970-12-02
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Granted: 1972-04-25
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Expires: 1990-12-02
Abstract
Abstract In an electrostatic copier a switch can be operated for initiating a copying sequence. A number wheel is mounted on the shaft and can be turned from a zero position to a plurality of operating positions in each of which it preselects a specific number of repetitions of the sequence. An externally accessible knob is provided for turning the shaft manually to place the number wheel in the desired operating position. A device is provided which incrementally returns the number wheel to zero position as each of the respective sequences is executed. An additional device is provided which is operated every time the switch is actuated and which causes the number wheel to move from its zero position to a respective operating position incrementally in dependence upon the number of times the switch is operated.
Inventors
- 👤 Herbert Engel
- 👤 Gunther Schnall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:57
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/02
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
112 words
In an electrostatic copier, in combination, first means operable for initiating a copying sequence; second means incrementally advanceable in a first direction from a zero position to a plurality of operating positions in each of which it preselects a specific number of repetitions of said sequence; third means for manually advancing said second means in said first direction; fourth means for incrementally returning said second means in a second direction towards said zero position in response to execution of the respective sequence; and fifth means connected with said first and second means and operative for incrementally advancing said second means in said first direction in response to operation of said first means.
Claim 2
Dependent Claim
112 words
In an electrostatic copier, in combination, first means operable for initiating a copying sequence; second means incrementally advanceable in a first direction from a zero position to a plurality of operating positions in each of which it preselects a specific number of repetitions of said sequence; third means for manually advancing said second means in said first direction; fourth means for incrementally returning said second means in a second direction towards said zero position in response to execution of the respective sequence; and fifth means connected with said first and second means and operative for incrementally advancing said second means in said first direction in response to operation of said first means.
Claim 3
Dependent Claim
26 words
In a copier as defined in claim 1, said second means comprising a rotatable shaft and a number wheel mounted on said shaft for rotation therewith.
Claim 4
Dependent Claim
89 words
In a copier as defined in claim 2, said fourth means comprising one gear fast with said shaft, one pawl engageable with said gear in a sense turning said shaft in said second direction, and one electromagnetic device operable for engaging said pawl with said gear; and wherein said fifth means comprises another gear fast with said shaft, another pawl engageable with said another gear in a sense turning said shaft in said first direction, and another electromagnetic device operable for engaging said another pawl with said another gear.
Claim 5
Dependent Claim
35 words
In a copier as defined in claim 3; further comprising an electrically operated component arranged to be energized during each copying sequence; and wherein said one electromagnetic device is connected in circuit with said component.
Claim 6
Dependent Claim
75 words
In a copier as defined in claim 4, said first means comprising a main switch, and said fifth means further comprising an auxiliary switch in circuit with said another electromagnetic device and operable for energizing the same in automatic response to operation of said main switch; and at least one additional switch in circuit with said component and also operable in a sense energizing said component in automatic response to operation of said main switch.
Claim 7
Dependent Claim
58 words
In a copier as defined in claim 5, said auxiliary switch and said additional switch being normally open; and further comprising retaining means operable in response to operation of said main switch and cooperating with said additional switch for maintaining the sAme in closed position while said second means is in a position other than said zero position.
Claim 8
Dependent Claim
68 words
In a copier as defined in claim 6; further comprising at least one additional electrically operated component arranged to be energized during each copying sequence; and at least one other normally open additional switch in circuit with said additional component and cooperating with said retaining means so as to be maintained thereby in closed position while said second means is in a position other than said zero position.
Claim 9
Dependent Claim
54 words
In a copier as defined in claim 7; and an actuating element operatively connected with said main switch and said one and said other additional switches for displacing both of the latter from said normally open to said closed positions in response to operation of said main switch, and for operating said retaining means.
Claim 10
Dependent Claim
52 words
In a copier as defined in claim 6; further comprising cam means on said number wheel and operative for releasing said retaining means in a sense permitting return of said auxiliary and said additional switches to said normally open position in automatic response to said number wheel returning to said zero position.
Claim 11
Dependent Claim
63 words
In a copier as defined in claim 6; further comprising at least one safety switch operable in automatic response to occurrence of a predetermined safety hazard; and a further electromagnetic device in circuit with said safety switch and acting upon said retaining means in a sense effecting release of said auxiliary and said additional switches in response to operation of said safety switch.
Claim 12
Dependent Claim
42 words
In a copier as defined in claim 3, said second means being advanceable to a continuous-copying position via said third means; and further comprising defeat means for defeating operation of said fourth means when said second means is in said continuous-copying position.
Claim 13
Dependent Claim
46 words
In a copier as defined in claim 11, said defeat means comprising a cut-out provided in said one gear and located opposite said one pawl when said second means is in said continuous-copying position, to thereby preclude engagement of said one pawl with said one gear.
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) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |