US4569175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
False ceilings
Assignee: Individual
•
Filing: 1984-05-21
•
Granted: 1986-02-11
•
Expires: 2004-05-21
Abstract
Abstract A false ceiling consists of a set which comprises two elements: a springy substantially U- or V-shaped clamp the free ends of its two tines being bent over towards the center of the clamp, two oppositely disposed notches being provided in the said tines; and an elongated U- or V-profiled beam or girder like, hollow rail the free edges of which are bent inwardly, towards the center of the rail.
Inventors
- 👤 Pinhas Abciuk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:25
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/06; E04B9/065; E04B9/067; E04B9/34; E04B2009/062
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
118 words
A set for use with acoustic and/or decorative false ceilings, said ceilings comprise inverted T-profiled rails carrying panels of which the ceiling is assembled by supporting said panels by a horizontal web of said inverted T-profiled rails, said set comprising a springy substantially U- or V-shaped clamp, the free ends of its two tines being bent over towards the center of the clamp to snap close and to engage said web; two oppositely disposed notches provided in said tines; and an elongated U- or V-profiled beam or girder like, hollow rail the free edges of which are bent inwardly, towards the center of the rail to snap into position with its bent inwardly free edges engaging said notches.
Claim 2
Dependent Claim
118 words
A set for use with acoustic and/or decorative false ceilings, said ceilings comprise inverted T-profiled rails carrying panels of which the ceiling is assembled by supporting said panels by a horizontal web of said inverted T-profiled rails, said set comprising a springy substantially U- or V-shaped clamp, the free ends of its two tines being bent over towards the center of the clamp to snap close and to engage said web; two oppositely disposed notches provided in said tines; and an elongated U- or V-profiled beam or girder like, hollow rail the free edges of which are bent inwardly, towards the center of the rail to snap into position with its bent inwardly free edges engaging said notches.
Claim 3
Independent Claim
114 words
The method of assembling a false ceiling on a permanent ceiling, said false ceiling including inverted T-profiled panel carrying rails, said method comprising the steps of: (a) affixing the imnverted T-profiled rails to the permanent ceiling; (b) placing the panels in position to rest on a horizontal web of said inverted T-profiled rails; (c) attaching a clamp to the horizontal web of the inverted T-profiled rails which are fixed to the permanent ceiling by engaging the web with bent over free ends of the clamp; and (d) suspending a beam or girder like rail from the clamp by causing bent over edges of the rail to engage in oppositely disposed notches of the clamp.
Claim 4
Independent Claim
114 words
The method of assembling a false ceiling on a permanent ceiling, said false ceiling including inverted T-profiled panel carrying rails, said method comprising the steps of: (a) affixing the imnverted T-profiled rails to the permanent ceiling; (b) placing the panels in position to rest on a horizontal web of said inverted T-profiled rails; (c) attaching a clamp to the horizontal web of the inverted T-profiled rails which are fixed to the permanent ceiling by engaging the web with bent over free ends of the clamp; and (d) suspending a beam or girder like rail from the clamp by causing bent over edges of the rail to engage in oppositely disposed notches of the clamp.
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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) | 1989-02-10 | 1989-08-12 | 1990-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-10 | 1993-08-12 | 1994-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-10 | 1997-08-12 | 1998-02-11 | $7700.00 | Window Closed / Lapsed |