US3572569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Document feed and control device
Assignee: International Business Machines Corp
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Filing: 1969-06-02
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Granted: 1971-03-30
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Expires: 1989-06-02
Abstract
Abstract A document control device which utilizes a single mode of input drive to affect any of a selected plurality of modes of document feed output. A modified ratchet wheel on the output shaft is driven in various modes by a drive element variously directed by a channel cam structure during a fixed arcuate drive cycle.
Inventors
- 👤 Raymond L Cimijotti
- 👤 Robert F Markley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:46
CPC Classifications
B; B41; B41J; B41J19/00; B41J19/76; B41J19/78; B41J19/96; B41J11/00; B41J11/36; B41J11/38; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1503
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
110 words
A document feed and control device comprising: a multiple track channel cam having first and second channels each extending from a common initial location to a common terminal location; a rotary driven element; a drive member including a cam follower portion and a driving portion operable to advance said driven element; and selectively operable control means adjacent said initial location for directing said cam follower into a predetermined one of said first and second channels, said cam follower portion following said first channel to affect advance of said driven element in a first mode and following said second channel to affect advance of said driven element in a second mode.
Claim 2
Dependent Claim
110 words
A document feed and control device comprising: a multiple track channel cam having first and second channels each extending from a common initial location to a common terminal location; a rotary driven element; a drive member including a cam follower portion and a driving portion operable to advance said driven element; and selectively operable control means adjacent said initial location for directing said cam follower into a predetermined one of said first and second channels, said cam follower portion following said first channel to affect advance of said driven element in a first mode and following said second channel to affect advance of said driven element in a second mode.
Claim 3
Dependent Claim
73 words
The document feed and control device of claim 1 further comprising: releasable detent means to restrict movement of said driven element to one rotational direction and drive means for moving said drive member to cause said cam follower portion to move from said cam initial location to said terminal location and return; and wherein said driven element comprises a toothed ratchet wheel which is engaged and driven by said drive member driving portion.
Claim 4
Dependent Claim
37 words
A document feed and control device of claim 2 wherein a portion of said ratchet wheel is devoid of teeth to limit the number of times such ratchet wheel can be advanced in one of said modes.
Claim 5
Dependent Claim
34 words
The document feed and control device of claim 3 wherein said drive member advances said ratchet wheel one tooth space in said first mode and a plurality of tooth spaces in said second mode.
Claim 6
Dependent Claim
57 words
The document feed and control device of claim 4 wherein said ratchet wheel includes a tooth of increased radial length engageable with said drive member when the latter excursions through said second channel to affect a common final position of said ratchet wheel irrespective of the initial position of said increase length tooth adjacent said second channel.
Claim 7
Dependent Claim
69 words
The document feed and control device of claim 5 wherein said control means comprises a control lever which controls access of said cam follower to said channels of said cam at said initial location, said control lever having a first position permitting access to said first channel, a second position permitting access to said second channel, and a third position denying access to either said first or second channels.
Claim 8
Dependent Claim
52 words
The document feed and control device of claim 6 further comprising a terminal channel portion in said cam extending from said terminal location to and communicating with the outlets of said first and second channels and presenting a camming surface at a uniform radial distance from the axis of said ratchet wheel.
Claim 9
Dependent Claim
96 words
The document feed and control device of claim 7 whereIn said cam further presents an exterior camming surface extending from said initial location to a position adjoining said terminal location such that when said drive member is pivoted in a second pivotal direction opposite the direction of advance of the driven element said driving portion follows the surface of the ratchet tooth next adjoining in said second pivotal direction causing said cam follower portion to be guided onto said exterior camming surface, whereby said cam follower returns to said initial position along said exterior camming surface.
Claim 10
Dependent Claim
87 words
The document feed and control device of claim 2 further comprising: an output shaft secure to said ratchet wheel for total movement in unison therewith; biasing means urging said output shaft in a direction opposite said one rotational direction; cooperating stop means limiting travel of said shaft in said direction opposite said one rotational direction; and release means selectively operable to disengage said detent from said ratchet wheel whereby said biasing means is freed to urge said output shaft in said opposite of said one rotational direction.
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) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |