US3596929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Book formed of plastic strips and studs
Assignee: Abildgaard Laboratories Inc
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Filing: 1969-02-13
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Granted: 1971-08-03
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Expires: 1989-02-13
Abstract
Abstract A first strip having longitudinally spaced, upstanding studs and a second strip having holes corresponding in spacing to, and of a size slightly smaller than, the studs are used to bind sheets apertured adjacent one margin to receive the studs. Apparatus provides a support for the first strip with the studs fitting through the holes in the sheets. A retractable member which receives the second strip is slidable toward the first strip and compresses the sheets against the first strip. Shear means in the retractable member sever the excess length of the studs projecting through the holes in the second strip. The studs are then frictionally held by the second strip. Means is provided for more permanently holding the strips in position, as by deforming the ends of the studs. The product is a temporary or permanent binding for paper sheets apertured adjacent one margin having a first strip on one edge carrying studs projecting received in undersized holes in a second strip. The studs are cut off to length and temporarily held in the second strip by friction or by more permanent means involving deformation of the severed ends of the studs.
Inventors
- 👤 William H Abildgaard
- 👤 Charles T Groswith Iii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:50
CPC Classifications
B; B42; B42B; B42B5/00; B42B5/08; B42B5/10; B42D; B42D1/00; B42D1/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
112 words
In combination, a first self-supporting strip having a plurality of studs projecting from one surface thereof, said studs spaced apart in increments, and a second self-supporting strip substantially the same length and width as said first strip formed with apertures spaced apart the same increments as said studs, said apertures dimensioned to receive said studs when said studs are inserted through said apertures, each said strip being formed of extended width and length to comprise a book cover, said strips being totally disconnected from each other except by said studs, said studs formed at their outer ends with heads larger than said apertures to permanently secure said studs to said second strip.
Claim 2
Dependent Claim
112 words
In combination, a first self-supporting strip having a plurality of studs projecting from one surface thereof, said studs spaced apart in increments, and a second self-supporting strip substantially the same length and width as said first strip formed with apertures spaced apart the same increments as said studs, said apertures dimensioned to receive said studs when said studs are inserted through said apertures, each said strip being formed of extended width and length to comprise a book cover, said strips being totally disconnected from each other except by said studs, said studs formed at their outer ends with heads larger than said apertures to permanently secure said studs to said second strip.
Claim 3
Dependent Claim
180 words
A bound book comprising a plurality of sheets each formed with a plurality of spaced apertures adjacent one margin, a first plastic self-supporting, strip underlying one margin on one side of said book and covering said apertures and extending substantially the entire length of said book, a second plastic self-supporting strip overlying one margin of the side of said book opposite said first strip and of a length substantially equal to said first strip; said strips initially being freely movable toward and away from each other to accommodate a wide range of thicknesses of books, a plurality of studs fixed to said first strip and initially of a length greater than the greatest thickness of said range of thicknesses of books, said studs extending entirely through the apertures in said sheets and the apertures in said second strip, said studs sheared close to the surface of said second strip opposite from said sheets and formed with heads larger than said apertures and permanently secured to said second strip, said strips being totally disconnected from each other except by said studs.
Claim 4
Dependent Claim
180 words
A bound book comprising a plurality of sheets each formed with a plurality of spaced apertures adjacent one margin, a first plastic self-supporting, strip underlying one margin on one side of said book and covering said apertures and extending substantially the entire length of said book, a second plastic self-supporting strip overlying one margin of the side of said book opposite said first strip and of a length substantially equal to said first strip; said strips initially being freely movable toward and away from each other to accommodate a wide range of thicknesses of books, a plurality of studs fixed to said first strip and initially of a length greater than the greatest thickness of said range of thicknesses of books, said studs extending entirely through the apertures in said sheets and the apertures in said second strip, said studs sheared close to the surface of said second strip opposite from said sheets and formed with heads larger than said apertures and permanently secured to said second strip, said strips being totally disconnected from each other except by said studs.
Claim 5
Dependent Claim
35 words
A book according to claim 2 in which said first Strip comprises a first cover and said second strip a second cover for said sheets, said covers dimensioned at least as large as said sheets.
Claim 6
Dependent Claim
40 words
A book according to claim 2 which further comprises an edge binding overlapping and adhering to both said strips and the sheared ends of said studs and extending around and covering the edges of said sheets adjacent said one margin.
Claim 7
Dependent Claim
26 words
A book according to claim 2 in which the sheared ends of said studs are distorted to cause said studs to adhere to said second strip.
Claim 8
Dependent Claim
22 words
A book according to claim 5 in which said studs ends are melted by heat to enlarge the size of said ends.
Claim 9
Dependent Claim
20 words
A book according to claim 5 in which said stud ends are swaged to enlarge the size of said ends.
Claim 10
Dependent Claim
20 words
A book according to claim 5 in which said stud ends are spun to enlarge the size of said ends.
Claim 11
Dependent Claim
39 words
A book according to claim 5 in which the apertures of said second strip are each formed with a countersink on the side of said second strip opposite said sheets and said ends are distorted to fill the countersinks.
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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |