US3991967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Book holder
Assignee: Individual
•
Filing: 1976-05-10
•
Granted: 1976-11-16
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Expires: 1996-05-10
Abstract
Abstract A book holder is erectable from a totally flat storage position to an elevated use position providing an inclined table having a shelf pivotally attached thereto. A slide assembly disposed upon the outer edge of the shelf includes a pair of pivotally mounted fingers independently laterally displaceable to allow selective positioning of the fingers upon the margins of an open book disposed upon the table and supported against the shelf. Manually releasable means are included to permit adjustment of the inclination of the table and position of the shelf relative the table.
Inventors
- 👤 Harry Sack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:09
CPC Classifications
A; A47; A47B; A47B23/00; A47B23/04; A47B23/042; A47B23/043; A47B23/06
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
252 words
A book holder including, a base member adapted to be disposed upon a support surface and having side flanges and front and rear edges, a table overlying said base member and having side flanges and front and rear edges, means pivotally connecting said table to said base member adjacent said respective front edge, said table including a substantially planar supporting surface adapted to engage the back of an open publication, a brace intermediate said table and base member adjustable to selectively position and retain said table supporting surface at variable inclinations relative said base member, a shelf member provided with a platform disposed atop said table and adapted to support the front edge of a publication disposed upon said table, said platform including side brackets overlying said table side flanges and each having an elongated slot therein, releasable fastener means disposed through said bracket slots and table side flanges to pivotally and slidably connect said shelf member to said table, a slide assembly carried by said shelf member, said slide assembly including a pair of laterally displaceable slide members each having an outer free end and a page holding finger pivotally attached to each slide member adjacent said free end whereby, publications of various thicknesses and widths may be accommodated by manipulating said fastener means to allow raising or lowering of said shelf member relative said table and said slide members may be independently laterally positioned to allow selective pivoting of said fingers to engage the margins of the open publication therebeneath.
Claim 2
Dependent Claim
252 words
A book holder including, a base member adapted to be disposed upon a support surface and having side flanges and front and rear edges, a table overlying said base member and having side flanges and front and rear edges, means pivotally connecting said table to said base member adjacent said respective front edge, said table including a substantially planar supporting surface adapted to engage the back of an open publication, a brace intermediate said table and base member adjustable to selectively position and retain said table supporting surface at variable inclinations relative said base member, a shelf member provided with a platform disposed atop said table and adapted to support the front edge of a publication disposed upon said table, said platform including side brackets overlying said table side flanges and each having an elongated slot therein, releasable fastener means disposed through said bracket slots and table side flanges to pivotally and slidably connect said shelf member to said table, a slide assembly carried by said shelf member, said slide assembly including a pair of laterally displaceable slide members each having an outer free end and a page holding finger pivotally attached to each slide member adjacent said free end whereby, publications of various thicknesses and widths may be accommodated by manipulating said fastener means to allow raising or lowering of said shelf member relative said table and said slide members may be independently laterally positioned to allow selective pivoting of said fingers to engage the margins of the open publication therebeneath.
Claim 3
Dependent Claim
41 words
A book holder according to claim 1 wherein, said brace is pivotally attached to said table, a plurality of stops projecting upwardly from said base member and a foot portion on said brace engageable with a selected one of said stops.
Claim 4
Dependent Claim
29 words
A book holder according to claim 1 wherein, said shelf platform includes inner and outer edges and said slide assembly angularly depends from said platform and is parallel thereto.
Claim 5
Dependent Claim
23 words
A book holder according to claim 1 wherein, said slide members each include an upright tab adjacent its end opposite said free end.
Claim 6
Dependent Claim
23 words
A book holder according to claim 1 wherein, said table supporting surface is provided with a pair of spaced apart finger-engaging cut-out portions.
Claim 7
Dependent Claim
22 words
A book holder according to claim 1 wherein, said shelf platform is provided with a pair of spaced apart finger-engaging cut-out portions.
Claim 8
Dependent Claim
63 words
A book holder according to claim 1 wherein, said table side flanges are disposed inwardly of said base side flanges and means on said table and base connecting means maintaining a definite space between said table and base side flanges whereby when said table is collapsed to a position nested within said base said shelf brackets are freely disposed within said defined space.
Claim 9
Dependent Claim
67 words
A book holder according to claim 1 wherein, said table front edge is substantially spaced from said base front edge to define a transverse space therebetween bounded by said base and table side flanges whereby, when said table is collapsed to a position parallel with said base said shelf brackets may be pivoted about said releasable fastener means to position said slide assembly within said transverse space.
Claim 10
Dependent Claim
72 words
A book holder according to claim 1 including, a front flange extending upwardly from said base member front edge and a rear flange projecting downwardly from said table rear edge whereby upon collapsing of said table and base member about said connecting means to provide a compact parallel assembly, said side flanges, table, rear flange and base member front flange combine to enclose a cavity between said collapsed table and base member.
Claim 11
Dependent Claim
41 words
A book holder according to claim 2 wherein, said base member includes a sustantially planar surface and said stops comprise portions struck up from said planar surface, and said brace foot portion is of a greater width than said struck-up portions.
Claim 12
Dependent Claim
29 words
A book holder according to claim 5 including, a web disposed between said cut-up portions, the said brace is pivotally attached to said table supporting surface beneath said web.
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) | 1979-11-16 | 1980-05-17 | 1980-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-16 | 1984-05-17 | 1984-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-16 | 1988-05-17 | 1988-11-16 | $7700.00 | Window Closed / Lapsed |