US3858528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Library carrel
Assignee: Interlake Inc
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Filing: 1973-02-09
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Granted: 1975-01-07
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Expires: 1993-02-09
Abstract
Abstract A nestable library carrel in which two side walls are disposed at an angle with respect to each other and are supported by three elongated legs, one of the legs being positioned at the juncture between the side walls and the other legs supporting the side walls at points spaced from the one leg. The carrel is constructed to be nested in a square cluster wherein a central leg supports the junctures of all carrels and other legs are provided, each of which supports adjacent side walls of adjacent carrels. The carrel also is constructed to be arranged in a row configuration of two series of carrels oppositely facing and offset to provide adjacent side walls of oppositely facing carrels in abutting relationship. In row configuration the number of legs required to support the carrels is two more than the number of carrels in the row.
Inventors
- 👤 Warren D Petersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:30
CPC Classifications
A; A47; A47B; A47B87/00; A47B87/002; A47B19/00; A47B2200/00; A47B2200/0011; A47B2200/002; A47B2200/003
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
219 words
A nestable carrel, comprising two vertically extending side walls with the outer surfaces thereof disposed at an angle of 90* meeting at a juncture therebetween, a longitudinally extending cylindrical groove at said juncture having an arcuate extent of 90*, a longitudinally extending cylindrical groove on the outer surfaces of each of said side walls at a point spaced away from said juncture having an arcuate extent of 120*, three elongated hollow cylindrical legs secured to the outer surfaces of said side walls to provide support therefor, means for connecting one of said legs to said cylindrical groove at said juncture and for securing the others of said legs to respective ones of said groove in said side walls, said connecting means extending into each of said hollow cylindrical legs to preserve the smooth exterior surfaces thereof, the outer surfaces of said side walls being smooth and planar and the extensions thereof in one direction meeting at the geometrical center of said one leg and the extensions thereof in the other direction, extending respectively through the geometrical centers of said other legs, whereby a plurality of carrels are nestable in cluster or in row configuration so that adjacent side walls of adjacent carrels are in registry along the entire length thereof and are supported by two common legs disposed therebetween.
Claim 2
Dependent Claim
219 words
A nestable carrel, comprising two vertically extending side walls with the outer surfaces thereof disposed at an angle of 90* meeting at a juncture therebetween, a longitudinally extending cylindrical groove at said juncture having an arcuate extent of 90*, a longitudinally extending cylindrical groove on the outer surfaces of each of said side walls at a point spaced away from said juncture having an arcuate extent of 120*, three elongated hollow cylindrical legs secured to the outer surfaces of said side walls to provide support therefor, means for connecting one of said legs to said cylindrical groove at said juncture and for securing the others of said legs to respective ones of said groove in said side walls, said connecting means extending into each of said hollow cylindrical legs to preserve the smooth exterior surfaces thereof, the outer surfaces of said side walls being smooth and planar and the extensions thereof in one direction meeting at the geometrical center of said one leg and the extensions thereof in the other direction, extending respectively through the geometrical centers of said other legs, whereby a plurality of carrels are nestable in cluster or in row configuration so that adjacent side walls of adjacent carrels are in registry along the entire length thereof and are supported by two common legs disposed therebetween.
Claim 3
Dependent Claim
41 words
The nestable carrel set forth in claim 1 wherein each of said other cylindrical legs has a keyhole slot therein to facilitate securing said legs by said connecting means to said side walls at said points spaced away from said juncture.
Claim 4
Dependent Claim
75 words
The nestable carrel set forth in claim 2, and further comprising extension walls extending respectively outwardly from each of said side walls at the ends thereof away from said juncture, the outer surfaces of said extension walls forming an angle of 135* with the outer surfaces of said side walls, the end of one extension wall abutting the End of the extension wall of the adjacent carrel when said carrels are nested in row configuration.
Claim 5
Dependent Claim
200 words
A cluster of four nestable carrels, each carrel comprising two vertically extending side walls with the outer surfaces thereof disposed at an angle of 90* meeting at a juncture therebetween, a longitudinally extending cylindrical groove at said juncture having an arcuate extent of 90*, a longitudinally extending cylindrical groove on the outer surfaces of each of said side walls at a point spaced away from said juncture having an arcuate extent of 120*, four of said carrels being arranged such that the junctures of said carrels are disposed at a central location and adjacent side walls of adjacent carrels are abutting, and are in registry along the entire length thereof, and five elongated hollow cylindrical legs secured to said side walls to provide support therefor, one of said legs being located at the central location and being received in said grooves in said junctures to provide a central support for said carrels, others of said elongated legs being secured to adjacent side walls of adjacent carrels at said points spaced away from said junctures, and means extending into each of said hollow cylindrical legs for connecting said legs to said side walls and to preserve the smooth exterior surfaces thereof.
Claim 6
Dependent Claim
200 words
A cluster of four nestable carrels, each carrel comprising two vertically extending side walls with the outer surfaces thereof disposed at an angle of 90* meeting at a juncture therebetween, a longitudinally extending cylindrical groove at said juncture having an arcuate extent of 90*, a longitudinally extending cylindrical groove on the outer surfaces of each of said side walls at a point spaced away from said juncture having an arcuate extent of 120*, four of said carrels being arranged such that the junctures of said carrels are disposed at a central location and adjacent side walls of adjacent carrels are abutting, and are in registry along the entire length thereof, and five elongated hollow cylindrical legs secured to said side walls to provide support therefor, one of said legs being located at the central location and being received in said grooves in said junctures to provide a central support for said carrels, others of said elongated legs being secured to adjacent side walls of adjacent carrels at said points spaced away from said junctures, and means extending into each of said hollow cylindrical legs for connecting said legs to said side walls and to preserve the smooth exterior surfaces thereof.
Claim 7
Dependent Claim
172 words
A plurality of nestable carrels arranged in row configuration, each of said carrels comprising two vertically extending side walls with the outer surfaces thereof disposed at an angle of 90* meeting at a juncture therebetween, a longitudinally extending cylindrical groove at said juncture having an arcuate extent of 90*, a longitudinally extending cylindrical groove on the outer surfaces of each of said side walls at a point spaced away from said juncture having an arcuate extent of 120*, the row of carrels being comprised of two series of carrels oppositely facing and offset to provide adjacent side walls of oppositely facing carrels in abutting relationship in registry along the entire length thereof, a plurality of elongated hollow cylindrical legs secured to said side walls to provide support therefor, and means extending into each of said hollow cylindrical legs for connecting each of said legs to the associated side walls to preserve the smooth exterior surfaces thereof, the adjacent side walls of oppositely facing carrels being supported by two common legs disposed therebetween.
Claim 8
Dependent Claim
172 words
A plurality of nestable carrels arranged in row configuration, each of said carrels comprising two vertically extending side walls with the outer surfaces thereof disposed at an angle of 90* meeting at a juncture therebetween, a longitudinally extending cylindrical groove at said juncture having an arcuate extent of 90*, a longitudinally extending cylindrical groove on the outer surfaces of each of said side walls at a point spaced away from said juncture having an arcuate extent of 120*, the row of carrels being comprised of two series of carrels oppositely facing and offset to provide adjacent side walls of oppositely facing carrels in abutting relationship in registry along the entire length thereof, a plurality of elongated hollow cylindrical legs secured to said side walls to provide support therefor, and means extending into each of said hollow cylindrical legs for connecting each of said legs to the associated side walls to preserve the smooth exterior surfaces thereof, the adjacent side walls of oppositely facing carrels being supported by two common legs disposed therebetween.
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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) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |