US4633631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curtainwall system
Assignee: PITTCO ARCHITECTURAL METALS Inc
•
Filing: 1985-06-27
•
Granted: 1987-01-06
•
Expires: 2005-06-27
Abstract
Abstract This invention relates to a curtainwall system having panels mounted on a grid formed of vertical and horizontal mullions having a planar or flat exterior surface. Each of the panels is provided with a frame formed of hanger sections having a groove facing the interior of the frame. A panel engaging clip has one end inserted in the groove of the hanger frame and the other portion of the clip secured to the grid. The clip urges the hanger against the weatherstripping of the grid to provide an air and dust tight seal. A polyurethane block is mounted in the space between adjacent panels and thereafter a silicone is extruded into the space.
Inventors
- 👤 Stephen L. Crandell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:47
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/88; E04B2/96
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
136 words
Curtainwall for a structure, comprising: a grid having panel supporting surfaces; means for mounting said grid to the structure; a panel having a surface facing the structure interior defined as an inner surface, a surface opposite said inner surface defined as an outer surface, a peripheral edge between and continuous with said inner and outer surfaces, and a peripheral corner portion at the juncture of the peripheral edge and the outer surface of said panel; hanger means; means for securing said hanger means on the inner surface of said panel with said hanger means terminating short of the peripheral corner portion; weatherstripping interposed between said hanger means and selected portions of said panel supporting surfaces of said grid; and, means for attaching said hanger means to said grid and urging said weatherstripping against said hanger means.
Claim 2
Dependent Claim
136 words
Curtainwall for a structure, comprising: a grid having panel supporting surfaces; means for mounting said grid to the structure; a panel having a surface facing the structure interior defined as an inner surface, a surface opposite said inner surface defined as an outer surface, a peripheral edge between and continuous with said inner and outer surfaces, and a peripheral corner portion at the juncture of the peripheral edge and the outer surface of said panel; hanger means; means for securing said hanger means on the inner surface of said panel with said hanger means terminating short of the peripheral corner portion; weatherstripping interposed between said hanger means and selected portions of said panel supporting surfaces of said grid; and, means for attaching said hanger means to said grid and urging said weatherstripping against said hanger means.
Claim 3
Dependent Claim
20 words
The curtainwall as set forth in claim 1, wherein said attaching and urging means is movable relative to the structure.
Claim 4
Dependent Claim
32 words
The curtainwall as set forth in claim 2, wherein said attaching and urging means comprises fastening means having a threaded shaft passing through said hanger means and selected portions of said grid.
Claim 5
Dependent Claim
18 words
The curtainwall as set forth in claim 3, wherein said hanger means has a generally tubular transverse cross-section.
Claim 6
Dependent Claim
15 words
The curtainwall as set forth in claim 4, wherein said securing means comprises an adhesive.
Claim 7
Dependent Claim
15 words
The curtainwall as set forth in claim 5, wherein said panel is a glass panel.
Claim 8
Dependent Claim
54 words
The curtainwall as set forth in claim 1, wherein said attaching and urging means comprises: a panel clip having a portion engageable with said hanger means; and, means for detachably securing said panel clip to said grid and acting on said panel clip and said grid to urge said weatherstripping against said hanger means.
Claim 9
Dependent Claim
24 words
The curtainwall as set forth in claim 7, wherein said hanger means comprises a plurality of hanger sections arranged to provide a frame configuration.
Claim 10
Dependent Claim
48 words
The curtainwall as set forth in claim 8, wherein each of said hanger sections comprises an elongated, generally channel-shaped member having a first flange portion and a second flange portion interconnected by a web portion, said web portion and said first and second flange portions defining a groove.
Claim 11
Dependent Claim
41 words
The curtainwall as set forth in claim 9, wherein said portion of said panel clip engageable with said hanger means is disposed in at least partially overlying/overlapping relationship to said second flange portion of an adjacent one of said hanger sections.
Claim 12
Dependent Claim
34 words
The curtainwall as set forth in claim 10, wherein said detachably securing means further serves to bias said overlapping portions of said second flange portion and said panel clip engageable portion against each other.
Claim 13
Dependent Claim
45 words
The curtainwall as set forth in claim 11, wherein it further comprises one or more additional panels each having a hanger means secured to its grid facing surface and means securing said hanger means to said grid to thereby secure said panel(s) to said grid.
Claim 14
Dependent Claim
38 words
The curtainwall as set forth in claim 12, wherein it further comprises means inserted into spaces between adjacent ones of said panels to provide a seal between the interior of the structure and the exterior of the structure.
Claim 15
Dependent Claim
16 words
The curtainwall as set forth in claim 12, wherein said inserted means comprises a silicone weatherseal.
Claim 16
Dependent Claim
15 words
The curtainwall as set forth in claim 7, wherein said securing means comprises an adhesive.
Claim 17
Dependent Claim
16 words
The curtainwall as set forth in claim 7, wherein said detachably securing means comprises a screw.
Claim 18
Dependent Claim
20 words
The curtainwall as set forth in claim 16, wherein said panel is transparent to light to provide a vision panel.
Claim 19
Dependent Claim
20 words
The curtainwall as set forth in claim 16, wherein said panel is opaque to light to provide a spandrel panel.
Claim 20
Dependent Claim
14 words
The curtainwall as set forth in claim 17, wherein said vision panel is multiple-glazed.
Claim 21
Dependent Claim
14 words
The curtainwall as set forth in claim 18, wherein said spandrel panel is multiple-glazed.
Claim 22
Dependent Claim
35 words
The curtainwall as set forth in claim 10, wherein said securing means comprises an adhesive interposed between said first flange portion of each of said hanger sections and said grid facing surface of said panel.
Claim 23
Dependent Claim
23 words
The curtainwall as set forth in claim 21, wherein said detachably securing means is moveable relative to said panel clip and said grid.
Claim 24
Dependent Claim
16 words
The curtainwall as set forth in claim 22, wherein said detachably securing means comprises a screw.
Claim 25
Dependent Claim
29 words
The curtainwall as set forth in claim 21, wherein said groove of each said hanger section opens in a direction parallel to said grid facing surface of said panel.
Claim 26
Dependent Claim
98 words
The curtainwall as set forth in claim 8, wherein each of said hanger sections comprises: a first leg adhesively secured to said panel; a second leg extending toward the structure and having one end secured to said first leg and a hook formed at the other end; wherein said panel clip comprises said engageable portion and a body portion extending over a portion of said grid facing the structure; and, wherein said engageable portion of said panel clip comprises a flange interlockingly engaged with said hook of said second leg of an adjacent one of said hanger sections.
Claim 27
Dependent Claim
15 words
The curtainwall as set forth in claim 25, wherein said securing means comprises an adhesive.
Claim 28
Dependent Claim
130 words
Curtainwall for a structure, comprising: a grid having panel supporting surfaces; means for mounting said grid to the structure; a panel having a surface facing the structure interior defined as in inner surface, a surface opposite said inner surface defined as an outer surface, a peripheral edge between and continuous with said inner and outer surfaces, and a peripheral corner portion at the juncture of the peripheral edge and the outer surface of said panel; hanger means; means for securing said hanger means on the inner surface of said panel with said hanger means terminating short of the peripheral corner portion; and, means for attaching said hanger means directly to selected portions of said grid comprising a threaded shaft passing through said hanger means and selected portions of said grid.
Claim 29
Dependent Claim
130 words
Curtainwall for a structure, comprising: a grid having panel supporting surfaces; means for mounting said grid to the structure; a panel having a surface facing the structure interior defined as in inner surface, a surface opposite said inner surface defined as an outer surface, a peripheral edge between and continuous with said inner and outer surfaces, and a peripheral corner portion at the juncture of the peripheral edge and the outer surface of said panel; hanger means; means for securing said hanger means on the inner surface of said panel with said hanger means terminating short of the peripheral corner portion; and, means for attaching said hanger means directly to selected portions of said grid comprising a threaded shaft passing through said hanger means and selected portions of said grid.
Claim 30
Dependent Claim
18 words
The curtainwall as set forth in claim 27, wherein said attaching means is movable relative to the structure.
References Cited (Backward Citations)
US2145469A
Cited
US3082848A
Cited
GB1014857A
Cited
US3559358A
Cited
US3715848A
Cited
US3712016A
Cited
US3672107A
Cited
US3735544A
Cited
DE2216214A1
Cited
US3936986A
Cited
US4107887A
Cited
US4089146A
Cited
US4056904A
Cited
US4070835A
Cited
DE2738748A1
Cited
US4372901A
Cited
US4307551A
Cited
US4324373A
Cited
GB2126620A
Cited
US4448001A
Cited
US4581868A
Cited
US4545161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-01-05 | 1990-07-07 | 1991-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-05 | 1994-07-07 | 1995-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-05 | 1998-07-07 | 1999-01-06 | $7700.00 | Window Closed / Lapsed |