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US3869841A Expired / Lapsed US ⏱️ 0.0 years remaining

Building construction and method

Assignee: BUILDING COMPONENTS RESEARCH I
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Filing: 1974-08-21
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Granted: 1975-03-11
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Expires: 1994-08-21
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Abstract

Abstract A building construction method for transforming a large open space into a plurality of smaller spaces. Foldable wall panels are initially supported upon retractable wheels to facilitate unfolding and movement of the wall panel to the predetermined position forming an enclosure. Insulating material having an improved cross-sectional configuration is situated at panel joints and at the top and bottom of the panels. An acoustical and hermetic insulation is formed when an elevated ceiling unit is lowered so as to rest upon the wall panels. The weight of the ceiling unit simultaneously (a) displaces the wall panel vertically downward over the retractable wheels to secure the position of the wall panels and (b) compresses the insulating material at both the top and bottom of the wall panel.

Inventors

  • 👤 Carl D Wahlquist

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 04:28
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/343; E04B1/344

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 79 words
A method of assembling interior rooms within a space, the steps of: mounting a wall panel in a generally vertical orientation so as to fold into a compact configuration; unfolding the wall panel to form an enclosure; lowering a ceiling unit until the ceiling unit rests upon the unfolded wall panel; and downwardly displacing the wall panel under the weight of the ceiling unit until a seal is formed simultaneously at the top and bottom of the wall panel.
Claim 2
Independent Claim 79 words
A method of assembling interior rooms within a space, the steps of: mounting a wall panel in a generally vertical orientation so as to fold into a compact configuration; unfolding the wall panel to form an enclosure; lowering a ceiling unit until the ceiling unit rests upon the unfolded wall panel; and downwardly displacing the wall panel under the weight of the ceiling unit until a seal is formed simultaneously at the top and bottom of the wall panel.
Claim 3
Independent Claim 79 words
A method of assembling interior rooms within a space, the steps of: mounting a wall panel in a generally vertical orientation so as to fold into a compact configuration; unfolding the wall panel to form an enclosure; lowering a ceiling unit until the ceiling unit rests upon the unfolded wall panel; and downwardly displacing the wall panel under the weight of the ceiling unit until a seal is formed simultaneously at the top and bottom of the wall panel.
Claim 4
Independent Claim 79 words
A method of assembling interior rooms within a space, the steps of: mounting a wall panel in a generally vertical orientation so as to fold into a compact configuration; unfolding the wall panel to form an enclosure; lowering a ceiling unit until the ceiling unit rests upon the unfolded wall panel; and downwardly displacing the wall panel under the weight of the ceiling unit until a seal is formed simultaneously at the top and bottom of the wall panel.
Claim 5
Dependent Claim 54 words
A method as defined in claim 1 wherein said unfolding step comprises transporting the wall panels from the folded to the unfolded position on displaceable wheels and wherein said downwardly displacing step comprises urging the wall panel downwardly with respect to the displaceable wheels to that the wheels are recessed within the wall panel.

References Cited (Backward Citations)

US2395691A Cited
US3107400A Cited
US3321864A Cited
US3280796A Cited
US3453790A Cited
US3653165A Cited
US3744205A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-03-10 1978-09-09 1979-03-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-03-10 1982-09-09 1983-03-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-03-10 1986-09-09 1987-03-11 $7700.00 Window Closed / Lapsed

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