Patent US3847385A successfully refreshed from Google Patents.
US3847385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet container
Assignee: Xerox Corp
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Filing: 1972-11-13
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Granted: 1974-11-12
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Expires: 1992-11-13
Abstract
Abstract A container in which a stack of sheet material is stored for the subsequent advancement therefrom. The container includes a base plate having a flexible sheet with a portion of the upper surface thereof adapted to engage the under surface of the advancing sheet. The foregoing abstract is neither intended to define the invention disclosed in the specification, nor is it intended to be limiting as to the scope of the invention in any way.
Inventors
- 👤 F Wieloch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:38
CPC Classifications
B; B65; B65H; B65H1/00; B65H1/26; B65H1/266; B65H1/04; G; G03; G03B; G03B21/00; G03B21/54; G03B21/64; G03G; G03G15/00; G03G15/65; G03G15/6502; B65H2405/00; B65H2405/30; B65H2405/31; B65H2405/311; B65H2801/00; B65H2801/03; B65H2801/21
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
140 words
An apparatus for separating and feeding successive single sheets from a stack of sheet material, including: a rotary driven feed roll, said feed roll being adapted to engage the upper surface of successive uppermost sheets in the stack of sheet material; a retard roll cooperating with said feed roll for seriatim feeding of successive uppermost sheets from the stack; a base plate defining a generally planar surface for supporting the stack; and a flexible sheet having one marginal edge portion thereof secured to the leading edge portion of said base plate, said flexible sheet extending in a substantially outwardly direction beyond said base plate and being interposed between said feed roll and said retard roll such that a portion of the upper surface thereof engages the undersurface of successive uppermost sheets advancing from the stack disposed on said base plate.
Claim 2
Independent Claim
140 words
An apparatus for separating and feeding successive single sheets from a stack of sheet material, including: a rotary driven feed roll, said feed roll being adapted to engage the upper surface of successive uppermost sheets in the stack of sheet material; a retard roll cooperating with said feed roll for seriatim feeding of successive uppermost sheets from the stack; a base plate defining a generally planar surface for supporting the stack; and a flexible sheet having one marginal edge portion thereof secured to the leading edge portion of said base plate, said flexible sheet extending in a substantially outwardly direction beyond said base plate and being interposed between said feed roll and said retard roll such that a portion of the upper surface thereof engages the undersurface of successive uppermost sheets advancing from the stack disposed on said base plate.
Claim 3
Dependent Claim
80 words
An apparatus as recited in claim 1, further including a registration member extending substantially in an upwardly direction from base plate, said registration member having a first portion defining a generally planar surface engaging one side edge portion of the stack and a second portion defining a generally planar surface extending substantially in a direction normal to the first portion thereof engaging the trailing edge portion of the stack to substantially align the sheets thereof in registration with one another.
Claim 4
Dependent Claim
98 words
An apparatus as recited in claim 2, wherein: the first portion of said registration member includes a side member defining a generally planar surface extending substantially in a direction normal to said base plate and being affixed thereto in the region of one side marginal edge portion thereof; and the second portion of said registration member includes a rear member defining a generally planar surface extending substantially in a direction normal to said side member and said base plate, said rear member being attached to said base plate in the region in the trailing marginal edge portion thereof.
Claim 5
Dependent Claim
80 words
An apparatus as recited in claim 2, further including a top plate attached to said registration member and having a generally planar surface extending substantially in a direction parallel to said base plate defining a cavity therebetween for storing the stack therein, said top plate having a notch in the region of the leading marginal portion thereof affording said feed roll access to the upper surface of the uppermost sheet of the stack permitting the advancement thereof from the cavity.
Claim 6
Dependent Claim
23 words
An apparatus for separating and feeding nonfibrous sheets, as recited in claim 1, wherein said flexible sheet is made from a fibrous material.
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) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |