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US3668826A Expired / Lapsed US ⏱️ 0.0 years remaining

Suspended ceiling system

Assignee: Celotex Corp
•
Filing: 1970-02-09
•
Granted: 1972-06-13
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Expires: 1990-02-09
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Abstract

Abstract A suspended ceiling system having a repetitive modular appearance includes unique, removable, collapsible frame portions in which either finished panels or lighting fixtures can be centrally positioned away from the lower plane of the modules to form upwardly recessed coves.

Inventors

  • 👤 Richard N White
  • 👤 Joseph D Wilkin

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 19:36
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/06; E04B9/12; E04B9/16; Y; Y10; Y10S; Y10S52/00; Y10S52/08

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 191 words
A ceiling suspension system comprising: A rectangular structural member having four corners; and further having an outwardly and downwardly flaring skirt forming a lower peripheral extension of said structural member; a plurality of legs of V-shaped cross-section, each leg having one end pivotally attached at a corresponding corner of said skirt so that each of the said legs can be moved from a nesting position with respect to said structural member to an outwardly and downwardly extending position; a grid system having suspension members connected together and arranged to form a repeatable modular configuration; said suspension members having coplanar horizontal flanges and vertical web portions integral with and spaced from the free edges of said horizontal flanges, said horizontal flanges and vertical web portion of one of said suspension members meeting with a horizontal flange and vertical web portion of an adjacent suspension member at a right angle means on said skirt to limit pivotal movement of each of said legs, and means on each of said legs remote from said pivotally attached ends engaging corresponding ones of said horizontal flanges and said vertical web portions of said abutting suspension members.
Claim 2
Dependent Claim 191 words
A ceiling suspension system comprising: A rectangular structural member having four corners; and further having an outwardly and downwardly flaring skirt forming a lower peripheral extension of said structural member; a plurality of legs of V-shaped cross-section, each leg having one end pivotally attached at a corresponding corner of said skirt so that each of the said legs can be moved from a nesting position with respect to said structural member to an outwardly and downwardly extending position; a grid system having suspension members connected together and arranged to form a repeatable modular configuration; said suspension members having coplanar horizontal flanges and vertical web portions integral with and spaced from the free edges of said horizontal flanges, said horizontal flanges and vertical web portion of one of said suspension members meeting with a horizontal flange and vertical web portion of an adjacent suspension member at a right angle means on said skirt to limit pivotal movement of each of said legs, and means on each of said legs remote from said pivotally attached ends engaging corresponding ones of said horizontal flanges and said vertical web portions of said abutting suspension members.
Claim 3
Dependent Claim 75 words
A ceiling suspension system as recited in claim 1 in which said rectangular structural member comprises four sides, each of said sides having a vertical flange forming an outer edge for the reception of a ceiling enclosing member; a horizontal flange integral with said vertical flange extending inwardly from said vertical flange for supporting a ceiling enclosing member, and an outwardly and downwardly extending skirt connected to said vertical flange for connection to said legs.
Claim 4
Dependent Claim 35 words
A ceiling suspension system as recited in claim 2 in Which each of said outwardly and downwardly extending skirts has a pivot means securing said legs to each of said outwardly and downwardly extending skirts.
Claim 5
Dependent Claim 48 words
A ceiling suspension system as recited in claim 1 in which each end of each of said legs remote from said structural member has a V-shaped cut-out portion to form a bifurcated end and each bifurcated end has bent flange portions interlockingly engageable with said grid suspension members.
Claim 6
Dependent Claim 20 words
A ceiling suspension system as recited in claim 2 in which ceiling completing units are mounted on said structural member.
Claim 7
Dependent Claim 23 words
A ceiling suspension system as recited in claim 5 in which at least one of said ceiling completing units is a light fixture.
Claim 8
Dependent Claim 224 words
A rectangular structural member and leg assembly having four corners for supporting ceiling panels in a suspended ceiling system to form a modular ceiling of adjacent hollow truncated pyramids, and further having an outwardly and downwardly flaring skirt forming a lower peripheral extension of said structural member; adjacent sides of said skirt forming an inverted V-angle; a plurality of legs of V-shaped cross-section complementary to said V-angle; each leg having one end pivotally attached at a corresponding corner of said skirt, each of said legs being folded in nesting relationship with a corresponding side of said skirt and being adapted to being extended outwardly and downwardly in divergent relationship with respect to said structural member and to each other when in their extended positions, each leg having a cut-out section in its end remote from said pivotally attached end, said remote end being adapted to engage a grid structure, and locking means punched out of each side of said skirt spaced from said pivotally attached ends of each of said legs for limiting the extent of pivoted motion of each of said legs; whereby the legs can be moved from a nesting position with respect to said structural member to and locked in an outwardly and downwardly extending relationship with respect to said structural member and to each other when in their extended positions.
Claim 9
Dependent Claim 224 words
A rectangular structural member and leg assembly having four corners for supporting ceiling panels in a suspended ceiling system to form a modular ceiling of adjacent hollow truncated pyramids, and further having an outwardly and downwardly flaring skirt forming a lower peripheral extension of said structural member; adjacent sides of said skirt forming an inverted V-angle; a plurality of legs of V-shaped cross-section complementary to said V-angle; each leg having one end pivotally attached at a corresponding corner of said skirt, each of said legs being folded in nesting relationship with a corresponding side of said skirt and being adapted to being extended outwardly and downwardly in divergent relationship with respect to said structural member and to each other when in their extended positions, each leg having a cut-out section in its end remote from said pivotally attached end, said remote end being adapted to engage a grid structure, and locking means punched out of each side of said skirt spaced from said pivotally attached ends of each of said legs for limiting the extent of pivoted motion of each of said legs; whereby the legs can be moved from a nesting position with respect to said structural member to and locked in an outwardly and downwardly extending relationship with respect to said structural member and to each other when in their extended positions.
Claim 10
Dependent Claim 73 words
A rectangular structured member and leg assembly as recited in claim 7 in which said frame has four sides each of said sides having a vertical flange forming an outer edge for the reception of a frame-closing member, a horizontal flange integral with said vertical flange extending inwardly from said vertical flange for supporting said frame-closing member, and an outwardly extending flange connected to said vertical flange for pivotal connection of said legs.
Claim 11
Dependent Claim 37 words
A rectangular structural member and leg assembly as recited in claim 7 in which each of said outwardly and downwardly extendible legs has a V-shaped cut-out portion to form a bifurcated end remote from said pivoted end.

References Cited (Backward Citations)

US603474A Cited
US2044588A Cited
US3062954A Cited
US3265879A Cited
US3343310A Cited
US3426188A Cited
US3512313A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-06-13 1975-12-13 1976-06-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-06-13 1979-12-13 1980-06-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-06-13 1983-12-13 1984-06-13 $7700.00 Window Closed / Lapsed

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