Title: Sheet lifter with punches for looseleaf book

Abstract: This invention provides a special sheet lifter in a looseleaf notebook, and means associated with the sheet lifter for punching openings in an unperforated sheet at locations that fit the ring spacing of the looseleaf book. A flap portion hinged to the main body portion of the sheet lifter swings about a hinge line of a punch and die structure for making holes in any sheet at spacings for receiving the rings of the looseleaf book with which the sheet lifter is a part.

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Inventors: Cline, Robert C. (Saugerties, NY, US)

Application Number: 572714
Filing Date: 1975-04-29
Publication_date: 1976-08-17
Assignee: F. L. Russell Corporation (Mount Marion, NY)
Primary Class(es): 402/1 30/358, 402/4, 402/24
Other Classes:
US Patent Ref:

1285048	Nov, 1918	Cooke	402/1.
1505775	Aug, 1924	Gail	30/358.
2105233	Jan, 1938	Schade	402/1.
2445440	Jul, 1948	Klemm	402/1.
3087498	Apr, 1963	Vogel	402/2.
3303564	Feb, 1967	Hendricks	402/1.

Other Refs: 1,104,0221,146,001

Feb, 1968	UK.
Mar, 1969	UK

Primary Examiner: Schnall, Jerome
Assistant Examiner:
Attorney: Hopgood, Calimafde