US3714893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary label printing machine with adjustable rotor cam for separating the printing couple
Assignee: Weber Marking Systems Inc
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Filing: 1972-03-15
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Granted: 1973-02-06
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Expires: 1992-03-15
Abstract
Abstract A label printer having a printing roller and a cooperative platen roller which together act to print a label and feed label stock through the printer. An adjustable cam having plural discs is associated with the printing roller to move the platen roller away from its cooperative engagement with the printing roller during selected portions of the roller circumference to cause an intermittent feeding of label stock. One disc of the adjustable cam includes two arcuate concentric rows of spaced apart apertures with the apertures of one row regularly intercalated with the apertures of the adjacent row. Fine cam adjustment is accomplished by relative rotation of the plural discs of the cam and a pin locking of the discs in their adjusted position.
Inventors
- 👤 J Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:51
CPC Classifications
B; B65; B65H; B65H20/00; B65H20/02; B65H20/04; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636; Y10T74/21; Y10T74/2101; Y10T74/2102
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
207 words
A label printer having a rotatably driven printing roller, a platen roller cooperatively engaging said printing roller for effecting a printing of indicia from the printing roller onto label stock fed between the rolls, a cradle rockably mounted on said printer, means journally carrying said platen roller in said cradle, a plural disc cam associated with said printing roller, said plural disc cam having a first disc and a second disc spring biased for abutting engagement against the first disc, means adjusting the relative arcuate positions of said first and second discs of said plural disc cam, a cam follower associated with said cradle, whereby at certain positions the cam causes the cam follower to separate the platen roller from the printing roller and thereby intermittently halt the feeding of the label stock, said means adjusting said plural disc cam including the first disc having two concentric arcuate rows of closely spaced apart apertures in which the apertures of each row are regularly intercalated with each other and the second disc having spaced apart axially slidable pins to alternatively have one pin or the other engage one of the apertures of either row of apertures, and spring means for urging said pins axially toward said first disc.
Claim 2
Dependent Claim
207 words
A label printer having a rotatably driven printing roller, a platen roller cooperatively engaging said printing roller for effecting a printing of indicia from the printing roller onto label stock fed between the rolls, a cradle rockably mounted on said printer, means journally carrying said platen roller in said cradle, a plural disc cam associated with said printing roller, said plural disc cam having a first disc and a second disc spring biased for abutting engagement against the first disc, means adjusting the relative arcuate positions of said first and second discs of said plural disc cam, a cam follower associated with said cradle, whereby at certain positions the cam causes the cam follower to separate the platen roller from the printing roller and thereby intermittently halt the feeding of the label stock, said means adjusting said plural disc cam including the first disc having two concentric arcuate rows of closely spaced apart apertures in which the apertures of each row are regularly intercalated with each other and the second disc having spaced apart axially slidable pins to alternatively have one pin or the other engage one of the apertures of either row of apertures, and spring means for urging said pins axially toward said first disc.
Claim 3
Dependent Claim
207 words
A label printer having a rotatably driven printing roller, a platen roller cooperatively engaging said printing roller for effecting a printing of indicia from the printing roller onto label stock fed between the rolls, a cradle rockably mounted on said printer, means journally carrying said platen roller in said cradle, a plural disc cam associated with said printing roller, said plural disc cam having a first disc and a second disc spring biased for abutting engagement against the first disc, means adjusting the relative arcuate positions of said first and second discs of said plural disc cam, a cam follower associated with said cradle, whereby at certain positions the cam causes the cam follower to separate the platen roller from the printing roller and thereby intermittently halt the feeding of the label stock, said means adjusting said plural disc cam including the first disc having two concentric arcuate rows of closely spaced apart apertures in which the apertures of each row are regularly intercalated with each other and the second disc having spaced apart axially slidable pins to alternatively have one pin or the other engage one of the apertures of either row of apertures, and spring means for urging said pins axially toward said first disc.
Claim 4
Dependent Claim
207 words
A label printer having a rotatably driven printing roller, a platen roller cooperatively engaging said printing roller for effecting a printing of indicia from the printing roller onto label stock fed between the rolls, a cradle rockably mounted on said printer, means journally carrying said platen roller in said cradle, a plural disc cam associated with said printing roller, said plural disc cam having a first disc and a second disc spring biased for abutting engagement against the first disc, means adjusting the relative arcuate positions of said first and second discs of said plural disc cam, a cam follower associated with said cradle, whereby at certain positions the cam causes the cam follower to separate the platen roller from the printing roller and thereby intermittently halt the feeding of the label stock, said means adjusting said plural disc cam including the first disc having two concentric arcuate rows of closely spaced apart apertures in which the apertures of each row are regularly intercalated with each other and the second disc having spaced apart axially slidable pins to alternatively have one pin or the other engage one of the apertures of either row of apertures, and spring means for urging said pins axially toward said first disc.
Claim 5
Dependent Claim
58 words
A label printer as set forth in claim 1 in which the means adjusting the plural disc cam further includes means for axially sliding the second disc with its spring urged pins away from its spring abutting engagement with the first disc and for manually rotating said second disc when it is axially spaced from said first disc.
Claim 6
Dependent Claim
52 words
A label printer as set forth in claim 1 in which the spring means for urging the pins includes a flat spring member having a base fastened to the outer surface of the second disc and arcuately disposed separate spring fingers arranged and constructed to abut the headed ends of the pins.
References Cited (Backward Citations)
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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) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |