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US3718308A Expired / Lapsed US ⏱️ 0.0 years remaining

Book holder

Assignee: Michigan Technological University
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Filing: 1970-09-18
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Granted: 1973-02-27
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Expires: 1990-09-18
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Abstract

Abstract A book support includes a horizontal tension member and a compression member and has a hinged connection between the two about which they can pivot between a collapsed position wherein one overlies the other and an extended position wherein the later is generally upright and at an angle to the former. A second tension member is connected to both of the already mentioned members and is arranged to be extended in a taut condition between the two when they are pivoted to the extended position. The horizontal tension member has an end extending beyond the point of connection of the second tension member thereto, this end has a non-skid surface for engaging a book edge as the book is rested against the compression member.

Inventors

  • 👤 P Hainault

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 22:34
CPC Classifications
A; A47; A47B; A47B23/00; A47B23/04; A47B23/042; A47B23/043; A47B2023/045

Claims Analysis

Total Claims: 17
Claim 1
Independent Claim 165 words
A book support comprising, in combination, a first generally planar member, a second generally planar member, means connecting adjacent ends of said first and second planar members for relative movement of said first and second members to an extended position wherein said first member is generally upright at an angle to said second member and terminates in an end above said second member when said second member is horizontal, a third member, and means connecting said third member to said first and second members with the connection of said third member to said second member, when said first, second, and third members are extended and said second member is horizontal, being located in an area between said connected adjacent ends and a plane generally perpendicular to said second member and including said end of said third member so that said third member limits further relative movement of said first and second members in the extending direcTion and said book support can function as a bookend.
Claim 2
Dependent Claim 165 words
A book support comprising, in combination, a first generally planar member, a second generally planar member, means connecting adjacent ends of said first and second planar members for relative movement of said first and second members to an extended position wherein said first member is generally upright at an angle to said second member and terminates in an end above said second member when said second member is horizontal, a third member, and means connecting said third member to said first and second members with the connection of said third member to said second member, when said first, second, and third members are extended and said second member is horizontal, being located in an area between said connected adjacent ends and a plane generally perpendicular to said second member and including said end of said third member so that said third member limits further relative movement of said first and second members in the extending direcTion and said book support can function as a bookend.
Claim 3
Dependent Claim 174 words
A book support comprising, in combination, a first member, a second member, means forming a hinge connection between said first and second members about which said members can be pivoted to an extended position wherein said members are disposed at an angle to each other so that said first member is generally upright and terminates in an end above said second member when said second member is horizontal, and a third member connected to each of said first and second members at areas spaced on each from said hinge connection, the area of connection of said third member to said second member located, when said first and second members are pivoted to said extended position and said third member is extended and said second member is horizontal, in an area between said hinge connection and a plane generally perpendicular to said second member and passing through said end of said first member so that said third member limits further pivotal movement in the extending direction and said book support can function as a bookend.
Claim 4
Dependent Claim 174 words
A book support comprising, in combination, a first member, a second member, means forming a hinge connection between said first and second members about which said members can be pivoted to an extended position wherein said members are disposed at an angle to each other so that said first member is generally upright and terminates in an end above said second member when said second member is horizontal, and a third member connected to each of said first and second members at areas spaced on each from said hinge connection, the area of connection of said third member to said second member located, when said first and second members are pivoted to said extended position and said third member is extended and said second member is horizontal, in an area between said hinge connection and a plane generally perpendicular to said second member and passing through said end of said first member so that said third member limits further pivotal movement in the extending direction and said book support can function as a bookend.
Claim 5
Dependent Claim 27 words
The book support of claim 2 wherein said first and second members are pivoted between said extended position and a collapsed position wherein one overlies the other.
Claim 6
Dependent Claim 47 words
The book support of claim 3 said third member comprises a flexible member characterized by being collapsible when said first and second members are in said collapsed position and being extended to a taut condition when said first and second members are pivoted to said extended position.
Claim 7
Dependent Claim 15 words
The book support of claim 2 wherein said third member is a relatively rigid member.
Claim 8
Dependent Claim 29 words
The book support of claim 4 wherein said rigid member has a hinged connection to one of said first and second members and a sliding engagement with the other.
Claim 9
Dependent Claim 40 words
The book support of claim 2 wherein said second member includes an end portion extending beyond the area of engagement of said third member with said second member and away from the hinge connection between said first and second members.
Claim 10
Dependent Claim 35 words
The book support of claim 7 including means defining a non-skid surface on said end portions facing, upwardly for engagement with a book edge when said first and second members are in said extended position.
Claim 11
Dependent Claim 18 words
The book support of claim 8 wherein said non-skid surface defining means defines an undulating in cross-section surface.
Claim 12
Dependent Claim 55 words
The book support of claim 7 wherein said end portion is bifurcated having outwardly extending spaced legs, including means defining a pair of notches in the hinge connection between said first and second members in alignment with said legs, and the space between said legs being in alignment with and wider than said third member.
Claim 13
Dependent Claim 89 words
The book support of claim 10 wherein said support is a one piece member and in a developed position includes said first member and the said bifurcated end portion thereof at one end, said third member extending from the other end thereof and oppositely relative to said bifurcated end portion, said second member being positioned between said first member and third member and having a fold line connection with both said first and third members, and said notches being generally at the fold line in alignment with said legs.
Claim 14
Dependent Claim 47 words
The book support of claim 7 said third member comprises a flexible member characterized by being collapsible when said first and second members are in said collapsed position and being extended to a taut condition when said first and second members are pivoted to said extended position.
Claim 15
Dependent Claim 28 words
The book support of claim 12 including means defining an undulating in transverse cross-section surface facing upwardly when said first and second members are in said extended position.
Claim 16
Dependent Claim 15 words
The book support of claim 7 wherein said third member is a relatively rigid member.
Claim 17
Dependent Claim 28 words
The book support of claim 14 including means defining an undulating in transverse cross-section surface facing upwardly when said first and second Members are in said extended position.

References Cited (Backward Citations)

US1126410A Cited
US2225830A Cited
GB688709A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-02-27 1976-08-28 1977-02-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-02-27 1980-08-28 1981-02-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-02-27 1984-08-28 1985-02-27 $7700.00 Window Closed / Lapsed

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