US4406448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper cassette
Assignee: Pitney Bowes Inc
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Filing: 1981-07-24
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Granted: 1983-09-27
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Expires: 2001-07-24
Abstract
Abstract A removable paper cassette for feeding different lengths of cut paper sheets seriatim to a machine operatively associated with the cassette. The cassette includes a chutelike base having a bottom panel, and a pair of sidewalls contiguous with the front wall and extending only along a portion of the bottom panel. The cassette further includes an upwardly biased paper elevating plate pivotably secured at its rearward section to the base, the plate having a pair of detents situated in the forward section thereof adjacent the sidewalls, and a cassette cover pivotably secured to the sidewalls of the base. The cover includes a pair of inwardly projecting camming fingers integral therewith, one on each side of the forward section thereof. The detents engage the fingers when the cover is raised to the open position whereby the cover is held in the open position and the elevating pate is maintained in a depressed position ready for paper loading.
Inventors
- 👤 Walter J. Kulpa
- 👤 Leo Wologodzew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:38
CPC Classifications
B; B65; B65H; B65H1/00; B65H1/26; B65H1/266; B65H1/04; G; G03; G03G; G03G15/00; G03G15/65; G03G15/6502
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
216 words
A paper cassette for feeding different lengths of cut paper sheets seriatim to a machine operatively associated with said cassette, comprising: a chute-like base having a bottom panel, a front wall projecting upwardly from the bottom panel, and a pair of sidewalls contiguous with said front wall and extending only along a portion of said bottom panel, said bottom panel including at least one pair of ramp-like ribs in the forward section thereof; an upwardly biased paper elevating plate pivotably secured at its rearward section to said base, said plate having a pair of detents situated in the forward section thereof adjacent said sidewalls and at least one last-sheet retaining pad in the forward section thereof flanked by a pair of slots; and a cassette cover pivotably secured to said sidewalls of said base, said cover having a pair of inwardly projecting camming fingers integral therewith one on each side of the forward section thereof, wherein when said cover is raised to the open position said detents engage said fingers and depress said elevating plate so that said ribs project through said slots to thereby defeat the function of the last-sheet retaining pad, whereby said cover is held in said open position and said elevating plate is maintained in a depressed position ready for paper loading.
Claim 2
Dependent Claim
216 words
A paper cassette for feeding different lengths of cut paper sheets seriatim to a machine operatively associated with said cassette, comprising: a chute-like base having a bottom panel, a front wall projecting upwardly from the bottom panel, and a pair of sidewalls contiguous with said front wall and extending only along a portion of said bottom panel, said bottom panel including at least one pair of ramp-like ribs in the forward section thereof; an upwardly biased paper elevating plate pivotably secured at its rearward section to said base, said plate having a pair of detents situated in the forward section thereof adjacent said sidewalls and at least one last-sheet retaining pad in the forward section thereof flanked by a pair of slots; and a cassette cover pivotably secured to said sidewalls of said base, said cover having a pair of inwardly projecting camming fingers integral therewith one on each side of the forward section thereof, wherein when said cover is raised to the open position said detents engage said fingers and depress said elevating plate so that said ribs project through said slots to thereby defeat the function of the last-sheet retaining pad, whereby said cover is held in said open position and said elevating plate is maintained in a depressed position ready for paper loading.
Claim 3
Dependent Claim
20 words
The cassette according to claim 1, wherein the bottom panel includes a longitudinally extending rectangular slot for facilitating paper changes.
Claim 4
Dependent Claim
22 words
The cassette according to claim 1, further including a pair of paper guides projecting upwardly from either side of the bottom panel.
Claim 5
Dependent Claim
24 words
The cassette according to claim 1, further including a pair of free-floating corner separators located at the juncture of the front wall and sidewalls.
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) | 1986-09-26 | 1987-03-28 | 1987-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-26 | 1991-03-28 | 1991-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-26 | 1995-03-28 | 1995-09-27 | $7700.00 | Window Closed / Lapsed |