Patent US6318047B1 successfully refreshed from Google Patents.
US6318047B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roof beams with hollow section duct
Assignee: Ultraframe PLC
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Filing: 2000-06-29
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Granted: 2001-11-20
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Expires: 2020-06-29
Abstract
Abstract A roof beam for constructing a conservatory roof comprises a glazing bar ( 10 ) and upper and lower capping ( 12, 14/50 ) thereon. The glazing bar has a cross bar ( 16 ) having trough formations ( 26 ) at each end, whereby there is a recess under the cross bar. The cross bar can, therefore, accommodate both a lower capping ( 14 ) for a transom roof beam and a lower capping ( 50 ) for a hipped conservatory roof end.
Inventors
- 👤 Christopher Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:34
CPC Classifications
E; E04; E04D; E04D3/00; E04D3/02; E04D3/06; E04D3/08; E04B; E04B7/00; E04B7/02; E04B7/06; E04B7/063; E04B2007/066; E04D2003/0806; E04D2003/0818; E04D2003/0825; E04D2003/0843; E04D2003/085; Y; Y10; Y10S; Y10S52/00; Y10S52/17
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
71 words
A glazing bar for use in forming a conservatory roof beam, the glazing bar being of generally inverted T-section providing a cross bar and an upstanding limb, the upstanding limb being in the form of a hollow section duct, wherein the cross bar has a central section and side walls that extend below the central section to form a recess in the underside of the glazing bar between the side wall.
Claim 2
Dependent Claim
71 words
A glazing bar for use in forming a conservatory roof beam, the glazing bar being of generally inverted T-section providing a cross bar and an upstanding limb, the upstanding limb being in the form of a hollow section duct, wherein the cross bar has a central section and side walls that extend below the central section to form a recess in the underside of the glazing bar between the side wall.
Claim 3
Dependent Claim
22 words
A glazing bar as claimed in claim 1 , wherein side walls of the cross bar also extend above the cross bar.
Claim 4
Dependent Claim
18 words
A glazing bar as claimed in claim 2 , wherein tops of the side walls have inward returns.
Claim 5
Dependent Claim
22 words
A glazing bar as claimed in claim 1 , wherein the side walls are parallel to the plane of the upstanding limb.
Claim 6
Dependent Claim
20 words
A glazing bar as claimed in claim 1 , wherein the side walls have inward returns with arcuate top surfaces.
Claim 7
Dependent Claim
19 words
A glazing bar as claimed in claim 1 , wherein the inward returns top surfaces are profile or roughened.
Claim 8
Dependent Claim
16 words
A glazing bar as claimed in claim 1 , wherein the duct is of rectangular section.
Claim 9
Dependent Claim
16 words
A glazing bar as claimed in claim 1 , wherein the duct is of triangular section.
Claim 10
Dependent Claim
28 words
A glazing bar as claimed in claim 1 , wherein the duct has a flat top a curved base and convergent sides from the top to the base.
Claim 11
Dependent Claim
22 words
A glazing bar as claimed in claim 1 , wherein the upstanding limb comprise a pair of ducts one above the other.
Claim 12
Dependent Claim
23 words
A glazing bar as claimed in claim 1 , wherein the upstanding limb includes a port for receiving a fixing screw or bolt.
Claim 13
Dependent Claim
21 words
A glazing bar as claimed in claim 1 including means for positive engagement with a lower capping for the glazing bar.
Claim 14
Dependent Claim
19 words
A roof beam comprising a glazing bar as claimed in claim 1 having upper and lower cappings fitted thereto.
Claim 15
Dependent Claim
19 words
A roof beam as claimed in claim 13 , wherein the lower capping has lengthwise a flexible central strip.
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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) | 2004-11-19 | 2005-05-21 | 2005-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-11-19 | 2009-05-21 | 2009-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-11-19 | 2013-05-21 | 2013-11-20 | $7700.00 | Window Closed / Lapsed |