US3759402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Counter ejector
Assignee: Harris Corp
•
Filing: 1972-04-10
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Granted: 1973-09-18
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Expires: 1992-04-10
Abstract
Abstract In apparatus which counts the number of sheets accumulated on an elevator and then transfers the pile to a conveyor, some of the members which push the pile off the elevator onto the conveyor have an angled camming surface at their upper end.
Inventors
- 👤 T Hitch
- 👤 W Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:29
CPC Classifications
B; B65; B65H; B65H31/00; B65H31/32; B65H29/00; B65H29/12; B65H29/14; B65H31/34; B65H31/36; B65H2701/00; B65H2701/10; B65H2701/17; B65H2701/176; B65H2701/1766
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
136 words
Apparatus for collecting and ejecting a pile of a predetermined number of sheets comprising an elevator on which sheets are to be accumulated, conveyor means for transporting sheets tO the elevator and depositing them in a downward direction onto the elevator, pushing means adjacent the elevator for pushing a pile of a predetermined number of sheets off the elevator, said pushing means including a plurality of upright pushing members, some of said pushing members having a camming surface at their upper end, said camming surfaces being inclined upwardly and away from said elevator, with the remainder of said pushing members having a pushing surface which extends to an elevation which is above the elevation of the lower end of said camming surfaces, and means supporting said pushing members for reciprocation in a direction across the elevator.
Claim 2
Dependent Claim
136 words
Apparatus for collecting and ejecting a pile of a predetermined number of sheets comprising an elevator on which sheets are to be accumulated, conveyor means for transporting sheets tO the elevator and depositing them in a downward direction onto the elevator, pushing means adjacent the elevator for pushing a pile of a predetermined number of sheets off the elevator, said pushing means including a plurality of upright pushing members, some of said pushing members having a camming surface at their upper end, said camming surfaces being inclined upwardly and away from said elevator, with the remainder of said pushing members having a pushing surface which extends to an elevation which is above the elevation of the lower end of said camming surfaces, and means supporting said pushing members for reciprocation in a direction across the elevator.
Claim 3
Dependent Claim
25 words
Apparatus in accordance with claim 1 wherein said elevator includes a plurality of horizontally disposed cantilevered fingers extendable between adjacent pushing members over the elevator.
Claim 4
Dependent Claim
18 words
Apparatus in accordance with claim 1 wherein said pushing means is supported by parallel tracks at different elevations.
Claim 5
Dependent Claim
50 words
Apparatus in accordance with claim 1 including a spanker, means defining slots in the spanker, rear auxiliary fingers extensible to a position through the slot for supporting a rear portion of a sheet, each rear auxuilary finger being disposed above one of the pushing members which lacks a camming surface.
Claim 6
Dependent Claim
78 words
Apparatus in accordance with claim 1 including a conveyor for receiving ejected piles of sheets from the elevator and disposed on one side of the elevator, the discharge end of a folder-gluer being disposed on the side of the elevator opposite said conveyor, the discharge end of the folder-gluer including said conveyor means for delivering box blanks to the elevator, and a backstop against which box blanks may contact under the momentum imparted thereto by said conveyor means.
Claim 7
Dependent Claim
41 words
Apparatus in accordance with claim 1 including a backstop, means supporting the backstop for adjustment toward and away from a vertical plane containing the pushing members, the backstop being supported by carriages riding on tracks above the elevation of the backstop.
Claim 8
Dependent Claim
34 words
Apparatus in accordance with claim 1 including auxiliary support means above the elevation of the elevator for selectively supporting a new pile while the pushing means is transferring an accumulated pile off the elevator.
Claim 9
Dependent Claim
36 words
Apparatus in accordance with claim 7 wherein said auxiliary support means includes rear fingers extensible for supporting sheets, each of said rear fingers being disposed above one of the pushing members which lacks a camming surface.
Claim 10
Dependent Claim
28 words
Apparatus in accordance with claim 1 including discrete hydraulic motive means for said pushing means and for said elevator, each coupled to valved circuitry which includes a pump.
Claim 11
Dependent Claim
49 words
Apparatus in accordance with claim 12 wherein said pushing members have a generally horizontal leg member extending from their upper end in a direction away from the elevator so as to be L-shaped, said camming surfaces being at the intersection of said leg member and the upright pushing members.
Claim 12
Dependent Claim
15 words
Apparatus in accordance with claim 1 including a track for reciprocably supporting said leg members.
Claim 13
Dependent Claim
99 words
An article of manufacture comprising a pushing means for pushing a pile of sheets off an elevator, said pushing means including a plurality of spaced upright pushing members arranged in a row, a first group of said pushing members having a pushing surface, said pushing surfaces lying in an upright plane, a second group of said pushing members having a camming surface at their upper end, each camming surface being inclined upwardly and away from said plane, said pushing surfaces on said first group extending to an elevation above the elevation of the lower end of said camming surfaces.
Claim 14
Dependent Claim
99 words
An article of manufacture comprising a pushing means for pushing a pile of sheets off an elevator, said pushing means including a plurality of spaced upright pushing members arranged in a row, a first group of said pushing members having a pushing surface, said pushing surfaces lying in an upright plane, a second group of said pushing members having a camming surface at their upper end, each camming surface being inclined upwardly and away from said plane, said pushing surfaces on said first group extending to an elevation above the elevation of the lower end of said camming surfaces.
Claim 15
Dependent Claim
23 words
An article in accordcnce with claim 1 wherein the number of said members having a camming surface exceeds the number of said remainder.
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) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |