US4069640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of mounting and demounting a wallboard wall
Assignee: National Gypsum Co
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Filing: 1976-10-20
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Granted: 1978-01-24
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Expires: 1996-10-20
Abstract
Abstract A wall of gypsum wallboard adhered indirectly to studs, in which the studs have an intermediate material, which has a preplanned degree of weakness, affixed to the stud face, and to which material the wallboard is adhered, to hold it relative to the studs, whereby on removal of the wallboard, the relatively dried bead of adhesive is easily removed from the wallboard back side and/or the stud face, leaving both in condition for reuse with new adhesive, in constructing a new wall.
Inventors
- 👤 Jack A. Dawdy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:56
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/7407; E04B2/7453; E04B2/7457; E04B2/76; E04B2/78; E04B2/7854; E04B2/789; E04B2002/7461; E04B2002/7472
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
147 words
The method of mounting and demounting a paper-covered gypsum wallboard wall comprising the steps of applying a thin material to the face of a wall stud receptive to adhesion thereto of a bead of wallboard adhesive and having a weak plane parallel to said stud face within a space of from said face to within said material, applying a bead of wallboard adhesive to said material, applying said wallboard to said bead of adhesive, permitting a bond to develop of said material to said bead of adhesive and said bead of adhesive to said wallboard, and subsequently dismounting said wall by removing said wallboard from said stud and removing said bead of wallboard adhesive from both said stud and said wallboard, said removal of said adhesive bead from said stud being by separating at least a part of said material from said stud at said weak plane.
Claim 2
Independent Claim
147 words
The method of mounting and demounting a paper-covered gypsum wallboard wall comprising the steps of applying a thin material to the face of a wall stud receptive to adhesion thereto of a bead of wallboard adhesive and having a weak plane parallel to said stud face within a space of from said face to within said material, applying a bead of wallboard adhesive to said material, applying said wallboard to said bead of adhesive, permitting a bond to develop of said material to said bead of adhesive and said bead of adhesive to said wallboard, and subsequently dismounting said wall by removing said wallboard from said stud and removing said bead of wallboard adhesive from both said stud and said wallboard, said removal of said adhesive bead from said stud being by separating at least a part of said material from said stud at said weak plane.
Claim 3
Dependent Claim
33 words
The method of claim 1 wherein said bead of adhesive is removed from said wallboard by removing a part of the thickness of the wallboard paper to which said adhesive bead is adhered.
Claim 4
Dependent Claim
35 words
The method of claim 1 wherein said material is multi-ply paper, and said removal of adhesive bead from said stud is by removing a portion of the thickness of said multi-ply paper from said stud.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-23 | 1981-07-25 | 1982-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-23 | 1985-07-25 | 1986-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-23 | 1989-07-25 | 1990-01-24 | $7700.00 | Window Closed / Lapsed |