US4901487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable ducting floor system
Assignee: Individual
•
Filing: 1987-12-07
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Granted: 1990-02-20
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Expires: 2007-12-07
Abstract
Abstract A flooring module comprised of an upper member and a lower member to be assembled with like modules to provide a flooring, an array of parallel passageways for specific purposes in the upper member defined by bottoms and sides overlying an array of passageways for like specific purposes in the lower member lying at an angle to the passageways in the upper member and defined by bottoms and sides, and provided with communications openings between corresponding purpose passageways in the upper and lower members and further provided with discrete access means in the upper member which overlie the communication openings.
Inventors
- 👤 Ralph A. Rigby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:55
CPC Classifications
E; E04; E04B; E04B5/00; E04B5/16; E04B5/32; E04B5/36; E04B5/38; E04B5/40; E04B5/48; E04F; E04F15/00; E04F15/02; E04F15/024; E04F15/02405; H; H02; H02G; H02G3/00; H02G3/28; H02G3/283; H02G3/285
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
147 words
A rectangular flooring module for assembly with like modules on a support means to provide a false floor complete with bi-directional building services ducting, said module having a substantially continuous upper load bearing surface, a planar array of parallel side-by-side service passageways immediately below said upper surface, each passageway being allocated for one or other of the building services, a planar array of parallel side-by-side downwardly open service channels immediately below said services passageways, each channel being allocated for one or other of the building services, the axes of the service passageways lying at an angle to the axes of the service channels, access openings between said service passageways and said service channels located at each crossover of like service allocated service passageways and service channels, and access means in said upper surface to allow access to said service passageways and respectively aligned with said access openings.
Claim 2
Dependent Claim
147 words
A rectangular flooring module for assembly with like modules on a support means to provide a false floor complete with bi-directional building services ducting, said module having a substantially continuous upper load bearing surface, a planar array of parallel side-by-side service passageways immediately below said upper surface, each passageway being allocated for one or other of the building services, a planar array of parallel side-by-side downwardly open service channels immediately below said services passageways, each channel being allocated for one or other of the building services, the axes of the service passageways lying at an angle to the axes of the service channels, access openings between said service passageways and said service channels located at each crossover of like service allocated service passageways and service channels, and access means in said upper surface to allow access to said service passageways and respectively aligned with said access openings.
Claim 3
Dependent Claim
14 words
A flooring module as claimed in claim 1 wherein said access means are holes.
Claim 4
Dependent Claim
58 words
A flooring module as claimed in claim 1 wherein the module comprises a first multi-channel member with the channels downwardly open fixed to a substantially continuous rear face of a second multi-channel member with its channels downwardly open, said rear face combining with sides and bottoms of the channels of the first member to provide said service passageways.
Claim 5
Dependent Claim
18 words
A flooring module as claimed in claim 3 wherein the multi-channel members are constructed from formed sheet metal.
Claim 6
Dependent Claim
38 words
A flooring module as claimed in claim 3 in which the walls of each of said service channels downwardly converge to provide bearing faces for the module which extend between terminal edges of adjacent walls of adjacent channels.
Claim 7
Dependent Claim
18 words
A flooring module as claimed in claim 1 wherein said access means are holes occluded by removable members.
Claim 8
Dependent Claim
19 words
A flooring module as claimed in claim 6 including frangible connections connecting the removable members and the flooring module.
Claim 9
Dependent Claim
29 words
A flooring module as claimed in claim 7 including portions of the module upper surface partially severed therefrom so as to form said removable members and said frangible connections.
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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) | 1993-02-19 | 1993-08-21 | 1994-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-19 | 1997-08-21 | 1998-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-19 | 2001-08-21 | 2002-02-20 | $7700.00 | Window Closed / Lapsed |