Patent US3716256A successfully refreshed from Google Patents.
US3716256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Book binding
Assignee: Display Corp International
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Filing: 1970-05-25
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Granted: 1973-02-13
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Expires: 1990-05-25
Abstract
Abstract A front and back cover are hingedly connected to the backbone permitting the covers to be opened towards a planar position. A generally U-shaped binder is affixed to the interior of the backbone for receipt of the pages or leaves. A foldable strip is connected between the front cover and binder which limits opening movement of the front cover relative to the backbone and binder over a preselected arc. Further opening movement of the front cover results in joint rotational movement of the binder and backbone with the cover. The front cover is prevented from becoming coplanar with the backbone thereby reducing the amount of rotation of the pages as they are turned and providing a relaxed and stable paging of the book.
Inventors
- 👤 O Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:22
CPC Classifications
B; B42; B42F; B42F13/00; B42F13/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
328 words
A book binding arrangement comprising, in combination an elongated backbone including a back portion adapted to rest on a support surface and a generally U-shaped binder extending substantially along the length of said backbone which has a web portion affixed to said back portion and a pair of spaced legs adapted to hold pages therebetween; front and back covers hingedly connected to the opposite edges of said back portion adjacent to respective of said legs so that said front and back covers can be completely opened independently of each other in opposite directions relative to said backbone towards a flat position with respect to the support surface on which said backbone is resting; and linking means including a first portion connected to the inside of said front cover, a second portion connected to the one of said legs corresponding to said front cover, and an intermediate portion which is foldable with respect to said first and second portions, said intermediate portion being expandable to permit limited opening movement of said front cover through a preselected arc relative to said back portion to a position short of becoming coplanar with said back portion without affecting the opening movement of said back cover and said linking means, upon continued opening movement of said front cover thereafter, solidly connecting said front cover to said corresponding leg so that said binder and back portion are rotatedly jointly with said front cover, thereby elevating the portion of said backbone to which said back cover is connected from the support surface and prohibiting said front cover and said back portion from becoming coplanar, said linking means comprising a flexible strip of material extending substantially along the length of said binder and said intermediate portion includes two portions which are foldable in face-to-face stacked relationship and disposed flat between said front cover and said one leg when said book is closed and become fully unfolded when said front cover is opened through said preselected arc.
Claim 2
Dependent Claim
328 words
A book binding arrangement comprising, in combination an elongated backbone including a back portion adapted to rest on a support surface and a generally U-shaped binder extending substantially along the length of said backbone which has a web portion affixed to said back portion and a pair of spaced legs adapted to hold pages therebetween; front and back covers hingedly connected to the opposite edges of said back portion adjacent to respective of said legs so that said front and back covers can be completely opened independently of each other in opposite directions relative to said backbone towards a flat position with respect to the support surface on which said backbone is resting; and linking means including a first portion connected to the inside of said front cover, a second portion connected to the one of said legs corresponding to said front cover, and an intermediate portion which is foldable with respect to said first and second portions, said intermediate portion being expandable to permit limited opening movement of said front cover through a preselected arc relative to said back portion to a position short of becoming coplanar with said back portion without affecting the opening movement of said back cover and said linking means, upon continued opening movement of said front cover thereafter, solidly connecting said front cover to said corresponding leg so that said binder and back portion are rotatedly jointly with said front cover, thereby elevating the portion of said backbone to which said back cover is connected from the support surface and prohibiting said front cover and said back portion from becoming coplanar, said linking means comprising a flexible strip of material extending substantially along the length of said binder and said intermediate portion includes two portions which are foldable in face-to-face stacked relationship and disposed flat between said front cover and said one leg when said book is closed and become fully unfolded when said front cover is opened through said preselected arc.
Claim 3
Dependent Claim
328 words
A book binding arrangement comprising, in combination an elongated backbone including a back portion adapted to rest on a support surface and a generally U-shaped binder extending substantially along the length of said backbone which has a web portion affixed to said back portion and a pair of spaced legs adapted to hold pages therebetween; front and back covers hingedly connected to the opposite edges of said back portion adjacent to respective of said legs so that said front and back covers can be completely opened independently of each other in opposite directions relative to said backbone towards a flat position with respect to the support surface on which said backbone is resting; and linking means including a first portion connected to the inside of said front cover, a second portion connected to the one of said legs corresponding to said front cover, and an intermediate portion which is foldable with respect to said first and second portions, said intermediate portion being expandable to permit limited opening movement of said front cover through a preselected arc relative to said back portion to a position short of becoming coplanar with said back portion without affecting the opening movement of said back cover and said linking means, upon continued opening movement of said front cover thereafter, solidly connecting said front cover to said corresponding leg so that said binder and back portion are rotatedly jointly with said front cover, thereby elevating the portion of said backbone to which said back cover is connected from the support surface and prohibiting said front cover and said back portion from becoming coplanar, said linking means comprising a flexible strip of material extending substantially along the length of said binder and said intermediate portion includes two portions which are foldable in face-to-face stacked relationship and disposed flat between said front cover and said one leg when said book is closed and become fully unfolded when said front cover is opened through said preselected arc.
Claim 4
Dependent Claim
328 words
A book binding arrangement comprising, in combination an elongated backbone including a back portion adapted to rest on a support surface and a generally U-shaped binder extending substantially along the length of said backbone which has a web portion affixed to said back portion and a pair of spaced legs adapted to hold pages therebetween; front and back covers hingedly connected to the opposite edges of said back portion adjacent to respective of said legs so that said front and back covers can be completely opened independently of each other in opposite directions relative to said backbone towards a flat position with respect to the support surface on which said backbone is resting; and linking means including a first portion connected to the inside of said front cover, a second portion connected to the one of said legs corresponding to said front cover, and an intermediate portion which is foldable with respect to said first and second portions, said intermediate portion being expandable to permit limited opening movement of said front cover through a preselected arc relative to said back portion to a position short of becoming coplanar with said back portion without affecting the opening movement of said back cover and said linking means, upon continued opening movement of said front cover thereafter, solidly connecting said front cover to said corresponding leg so that said binder and back portion are rotatedly jointly with said front cover, thereby elevating the portion of said backbone to which said back cover is connected from the support surface and prohibiting said front cover and said back portion from becoming coplanar, said linking means comprising a flexible strip of material extending substantially along the length of said binder and said intermediate portion includes two portions which are foldable in face-to-face stacked relationship and disposed flat between said front cover and said one leg when said book is closed and become fully unfolded when said front cover is opened through said preselected arc.
Claim 5
Dependent Claim
25 words
The combination according to claim 1 wherein said first portion includes an inturned flange and said front cover includes a pocket for receiving said flange.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |