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US4439971A Expired / Lapsed US ⏱️ 0.0 years remaining

Panel connector

Assignee: WOODRITE Inc
•
Filing: 1982-03-24
•
Granted: 1984-04-03
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Expires: 2002-03-24
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Abstract

Abstract A concealed connector for detachably coupling two panels together comprises a keeper entirely recessed within an edge of one panel and a rotatable latch outwardly projecting from a surface of the other panel. The latch includes a cam portion in the form of a partial thread which is inserted within the keeper recess for engagement with a flanged lip on the keeper. A stylus key is passed through a narrow access slot in communication with the recess and is selectively received within circumferentially spaced holes in the latch periphery. Turning of the latch in one direction by the key draws the abutting edges of the panels together in locked disposition while turning the latch in the other direction effects release.

Inventors

  • 👤 John S. Rutherford

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 04:57
CPC Classifications
F; F16; F16B; F16B12/00; F16B12/10; F16B12/12; F16B12/20; F16B12/2009; F16B12/2027; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T403/00; Y10T403/59

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 142 words
A concealed connector for coupling two panel sections together comprising a first member mounted within a recess within an edge of one panel section and including a lip extending partially into the recess, and a second member outwardly projecting from a surface of the second panel section and being rotatably coupled with respect thereto on an axis substantially normal to the surface thereof, said second member including an externally threaded cam portion adapted to protrude within the recess of the first panel section when the two panel sections are abutted, and means for rotating said second member at the periphery thereof adjacent the surface of the second panel section so that a segment of said threaded cam portion will engage said lip and draw the abutting surfaces of the two panel sections in tight locked disposition with the connector retained invisibly therebetween.
Claim 2
Dependent Claim 142 words
A concealed connector for coupling two panel sections together comprising a first member mounted within a recess within an edge of one panel section and including a lip extending partially into the recess, and a second member outwardly projecting from a surface of the second panel section and being rotatably coupled with respect thereto on an axis substantially normal to the surface thereof, said second member including an externally threaded cam portion adapted to protrude within the recess of the first panel section when the two panel sections are abutted, and means for rotating said second member at the periphery thereof adjacent the surface of the second panel section so that a segment of said threaded cam portion will engage said lip and draw the abutting surfaces of the two panel sections in tight locked disposition with the connector retained invisibly therebetween.
Claim 3
Dependent Claim 16 words
The connector of claim 1 wherein said first member constitutes a keeper of substantially rectangular configuration.
Claim 4
Dependent Claim 16 words
The connector of claim 1 wherein said first member constitutes a keeper of substantially circular configuration.
Claim 5
Dependent Claim 51 words
The connector of claim 1 wherein said first member comprises a keeper including a base portion secured to the bottom of the recess, and a bight portion connecting the lip to the base portion in parallel disposition to the edge of said panel and spaced below the surface of said edge.
Claim 6
Dependent Claim 51 words
The connector of claim 1 wherein said second member constitutes a latch of substantially cylindrical disposition, the cam portion of said latch including a flattened zone defining a relief in a first rotatable position to enable the latch to enter the recess without interfering with the lip of said first member.
Claim 7
Dependent Claim 25 words
The connector of claim 5 wherein the cylindrical portion of said latch includes a partial helical groove to receive the lip of said first member.
Claim 8
Dependent Claim 18 words
The connector of claim 6 wherein said latch further includes a hub from which the cam portion projects.
Claim 9
Dependent Claim 28 words
The connector of claim 7 wherein the hub includes circumferentially spaced means on the peripheral wall thereof for complementary engagement with the means for rotating said second member.
Claim 10
Dependent Claim 31 words
The connector of claim 8 wherein the means for rotating said second member comprises an elongate pointed key of needlelike configuration interfitting with circumferentially spaced holes constituting said circumferentially spaced means.
Claim 11
Dependent Claim 46 words
The connector of claim 9 wherein a thin strip constituting a reveal is secured to the edge of the panel section containing the recess for said first member, said reveal including an access slot communicating with the recess and permitting passage therethrough of said elongate key.
Claim 12
Dependent Claim 153 words
A concealed connector for coupling two panel sections together comprising a lipped keeper mounted within a recess of one panel section, and a latch outwardly projecting from and rotatably journaled on the surface of the second panel section, said latch including a hub portion proximal to the second panel surface and a cam portion at the distal end adapted to project within the recess when the two panel sections are abutted, said cam portion including an inclined segment of partial helical configuration, said hub portion including circumferentially spaced keyways at the periphery thereof immediately adjacent the second panel surface, and an elongate key for selectively interfitting within the circumferentially spaced keyways for turning the latch through a predetermined arc so that the inclined segment of the cam portion will engage the lipped keeper and draw abutting surfaces of the two panel sections together in tight locked disposition with the connector retained invisibly therebetween.
Claim 13
Dependent Claim 153 words
A concealed connector for coupling two panel sections together comprising a lipped keeper mounted within a recess of one panel section, and a latch outwardly projecting from and rotatably journaled on the surface of the second panel section, said latch including a hub portion proximal to the second panel surface and a cam portion at the distal end adapted to project within the recess when the two panel sections are abutted, said cam portion including an inclined segment of partial helical configuration, said hub portion including circumferentially spaced keyways at the periphery thereof immediately adjacent the second panel surface, and an elongate key for selectively interfitting within the circumferentially spaced keyways for turning the latch through a predetermined arc so that the inclined segment of the cam portion will engage the lipped keeper and draw abutting surfaces of the two panel sections together in tight locked disposition with the connector retained invisibly therebetween.
Claim 14
Dependent Claim 20 words
The connector of claim 11 wherein the hub keyways comprises holes of small diameter and the elongate key is pointed.
Claim 15
Dependent Claim 45 words
The connector of claim 12 wherein a thin strip constituting a reveal is secured to the edge of the first panel section, said reveal including an access slot adjacent to and communicating with the keeper recess to permit passage therethrough of said pointed eleongate key.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1987-04-03 1987-10-03 1988-04-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-04-03 1991-10-03 1992-04-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-04-03 1995-10-03 1996-04-03 $7700.00 Window Closed / Lapsed

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