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Patent US4603523A successfully refreshed from Google Patents.
US4603523A
Expired / Lapsed
US
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Underfloor access housing
Assignee: ROSS HOLDING Inc
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Filing: 1984-06-20
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Granted: 1986-08-05
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Expires: 2004-06-20
Abstract
Abstract A preset access housing for use with metal cellular flooring units of the type placed in building floors, and which provide generally parallel enclosed cells separated by troughs. The housing spans between the confronting webs of two of the cells and has side walls depending into the region between the cells to enclose a trough space. A connection formed in part from portions of the end walls of the housing and in part by slots in the generally vertically webs of the cells, connects the housing to the flooring unit. Deflectible means associated with the side walls of the housing, engage a surface of the flooring unit in the region between the cells, are deflected, and urge the housing upwardly relative to the flooring unit thereby to retain the connection between the housing and the flooring unit. The upward biasing of the housing by the deflectible side wall portions, accommodates variations in the positions of the slots relative to the crests of the two cells, which variations may occur during roll forming of the upper sheet of the flooring unit.
Inventors
- 👤 Raymond E. Albrecht
- 👤 Paul L. Haskins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:40
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/08; H02G3/18; H02G3/185; E; E04; E04B; E04B5/00; E04B5/48
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
204 words
An access housing in combination with a metal cellular flooring unit, said flooring unit providing generally parallel enclosed cells separated by troughs, each of said cells presenting a crest and webs depending therefrom and connected to valleys forming part of said troughs, said housing spanning between the crests of two of said cells and comprising: a top wall having an access opening: distinct perimeter walls including end walls depending toward the webs of said two of said cells and side walls depending toward the flooring unit, said side walls extending into the region between said two of said cells and having lower perimeter edges contoured to match the contour of that portion of said flooring unit in the region between the crest of two of said cells; the webs of said two of said cells having generally vertically presented slots; flexible connecting means presented by said end walls, engaging said slots and connecting said housing to said flooring unit; and defectable means provided by each of said side walls, engaging a surface of said flooring unit intermediate of said two of said cells, being deflected, and urging said housing upwardly relative to said flooring unit to maintain said connecting means engaged in said slots.
Claim 2
Dependent Claim
204 words
An access housing in combination with a metal cellular flooring unit, said flooring unit providing generally parallel enclosed cells separated by troughs, each of said cells presenting a crest and webs depending therefrom and connected to valleys forming part of said troughs, said housing spanning between the crests of two of said cells and comprising: a top wall having an access opening: distinct perimeter walls including end walls depending toward the webs of said two of said cells and side walls depending toward the flooring unit, said side walls extending into the region between said two of said cells and having lower perimeter edges contoured to match the contour of that portion of said flooring unit in the region between the crest of two of said cells; the webs of said two of said cells having generally vertically presented slots; flexible connecting means presented by said end walls, engaging said slots and connecting said housing to said flooring unit; and defectable means provided by each of said side walls, engaging a surface of said flooring unit intermediate of said two of said cells, being deflected, and urging said housing upwardly relative to said flooring unit to maintain said connecting means engaged in said slots.
Claim 3
Dependent Claim
25 words
The access housing as defined in claim 1 wherein said deflectible means comprise flanges, one inclined downwardly and outwardly from each of said side walls.
Claim 4
Dependent Claim
15 words
The access housing as defined in claim 2 wherein said flanges present upturned end portions.
Claim 5
Dependent Claim
21 words
The access housing as defined in claim 1 wherein said deflectible means reside at a level below said flexible connecting means.
Claim 6
Dependent Claim
21 words
The access housing as defined in claim 1 wherein said deflectible means reside at a level above said flexible connecting means.
Claim 7
Dependent Claim
32 words
The access housing as defined in claim 1 wherein said flexible connecting means of each of said side walls comprise spaced-apart upwardly hooking members extending downwardly and outwardly from said end walls.
Claim 8
Dependent Claim
30 words
The access housing as defined in claim 6 wherein each of said end walls presents an end wall portion disposed between and extending downwardly beyond said spaced-apart upwardly hooking members.
Claim 9
Dependent Claim
29 words
The access housing as defined in claim 7 wherein the shape of each of said end wall portion matches that of the adjacent ones of said upwardly hooking members.
Claim 10
Dependent Claim
25 words
The access housing as defined in claim 1 wherein said surface comprises a crest of a third cell presented between said two of said cells.
Claim 11
Dependent Claim
28 words
The access housing as defined in claim 9 wherein said crest of said third cell resides at a level below the crest of said two of said cells.
Claim 12
Dependent Claim
26 words
The access housing as defined in claim 9 wherein said crest of said third cell is coplanar with the crest of said two of said cells.
Claim 13
Dependent Claim
23 words
The access housing as defined in claim 1 wherein said surface comprises a valley of the trough separating said two of said cells.
References Cited (Backward Citations)
US28035A
Cited
US2892011A
Cited
US3200544A
Cited
US3592956A
Cited
USRE28035E
Cited
US3973366A
Cited
US4454692A
Cited
US4454692B1
Cited
US4484185A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-04 | 1990-02-03 | 1990-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-04 | 1994-02-03 | 1994-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-04 | 1998-02-03 | 1998-08-05 | $7700.00 | Window Closed / Lapsed |