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US4187969A Expired / Lapsed US ⏱️ 0.0 years remaining

Fixed stapler head

Assignee: Xerox Corp
•
Filing: 1978-05-15
•
Granted: 1980-02-12
•
Expires: 1998-05-15
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Abstract

Abstract An apparatus in which a stack of sheets is brought into contact with the clamping surface of a fixed stapler head. After the stack is secured against the clamping surface, a staple is driven therethrough.

Inventors

  • 👤 Charles W. Spehrley, Jr.

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 06:07
CPC Classifications
B; B27; B27F; B27F7/00; B27F7/17; B27F7/38; B27F7/19

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 160 words
An apparatus for driving a staple through a stack of sheets, including: a housing having a passageway for storing therein at least one staple, said housing being mounted stationarily and having a clamping surface; means for moving the stack of sheets into contact with the clamping surface of said housing to hold the stack of sheets securely during the stapling operation; means for driving the staples stored in the passageway of said housing through the stack of sheets; means for storing a plurality of staples, said storing means being stationary and in communication with the passageway in said housing for periodically advancing a supply of staples thereto; and means, in communication with said housing, for detecting the quantity of staples remaining in the passageway of said housing and actuating said storing means to advance staples therefrom into the passageway of said housing when the quantity of staples contained within the passageway of said housing is less than a pre-determined number.
Claim 2
Independent Claim 160 words
An apparatus for driving a staple through a stack of sheets, including: a housing having a passageway for storing therein at least one staple, said housing being mounted stationarily and having a clamping surface; means for moving the stack of sheets into contact with the clamping surface of said housing to hold the stack of sheets securely during the stapling operation; means for driving the staples stored in the passageway of said housing through the stack of sheets; means for storing a plurality of staples, said storing means being stationary and in communication with the passageway in said housing for periodically advancing a supply of staples thereto; and means, in communication with said housing, for detecting the quantity of staples remaining in the passageway of said housing and actuating said storing means to advance staples therefrom into the passageway of said housing when the quantity of staples contained within the passageway of said housing is less than a pre-determined number.
Claim 3
Dependent Claim 24 words
An apparatus as recited in claim 1, further including means for clinching the portion of the staple legs protruding through the stack of sheets.
Claim 4
Dependent Claim 59 words
An apparatus as recited in claim 2, wherein said detecting means includes: a light source transmitting light rays into the passageway of said housing in a direction substantially normal thereto; and a photosensor positioned to receive the light rays transmitted from said light source when the staples in the passageway of said housing are less than the predetermined number.
Claim 5
Dependent Claim 199 words
A reproducing machine for producing stapled piles of copies from documents advanced from a supply source to a platen and then returned to the supply source in repeated cycles with the copies being stapled in sets corresponding to the documents being copied, wherein the improved stapling apparatus includes: a housing having a passageway for storing therein at least one staple, said housing being mounted stationarily and having a clamping surface; means for moving a set of copy sheets into contact with the clamping surface of said housing to hold the set of copy sheets securely during the stapling operation; means for driving the staples stored in the passageway of said housing through the set of copy sheets; means for storing a plurality of staples, said storing means being stationary and in communication with the passageway in said housing for periodically advancing a supply of staples thereto; and means, in communication with said housing, for detecting the quantity of staples remaining in the passageway of said housing and actuating said storing means to advance staples therefrom into the passageway of said housing when the quantity of staples contained within the passageway of said housing is less than a pre-determined number.
Claim 6
Dependent Claim 199 words
A reproducing machine for producing stapled piles of copies from documents advanced from a supply source to a platen and then returned to the supply source in repeated cycles with the copies being stapled in sets corresponding to the documents being copied, wherein the improved stapling apparatus includes: a housing having a passageway for storing therein at least one staple, said housing being mounted stationarily and having a clamping surface; means for moving a set of copy sheets into contact with the clamping surface of said housing to hold the set of copy sheets securely during the stapling operation; means for driving the staples stored in the passageway of said housing through the set of copy sheets; means for storing a plurality of staples, said storing means being stationary and in communication with the passageway in said housing for periodically advancing a supply of staples thereto; and means, in communication with said housing, for detecting the quantity of staples remaining in the passageway of said housing and actuating said storing means to advance staples therefrom into the passageway of said housing when the quantity of staples contained within the passageway of said housing is less than a pre-determined number.
Claim 7
Dependent Claim 26 words
A reproducing machine as recited in claim 4, further including means for clinching the portion of the staple legs protruding through the set of copy sheets.
Claim 8
Dependent Claim 59 words
A reproducing machine as recited in claim 5, wherein said detecting means includes: a light source transmitting rays into the passageway of said housing in a direction substantially normal thereto; and a photosensor positioned to receive the light rays transmitted from said light source when the staples in the passageway of said housing are less than the predetermined number.

References Cited (Backward Citations)

US1907849A Cited
US2117743A Cited
US3189220A Cited
US3380639A Cited
US3672414A Cited
US3685712A Cited
US3938697A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1983-02-11 1983-08-13 1984-02-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1987-02-11 1987-08-13 1988-02-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1991-02-11 1991-08-13 1992-02-12 $7700.00 Window Closed / Lapsed

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