US3852935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic wall stud
Assignee: Individual
•
Filing: 1972-09-22
•
Granted: 1974-12-10
•
Expires: 1992-09-22
Abstract
Abstract A stud for magnetically supporting walls, each stud having a pair of oppositely disposed support surfaces. Each surface has at least one longitudinal channel therein for holding a magnetic material. Elongated metal strips are secured to the wallboards, which in turn are disposed on either side of the channeled surfaces and held there against by the magnetic force being exerted on the strips.
Inventors
- 👤 H Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:46
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/76; E04B2/78; E04B2/7407; E04B2/7453; E04B2/7457; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/088; E04F13/0883; E04B2002/7461; E04B2002/7468; Y; Y10; Y10S; Y10S52/00; Y10S52/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
111 words
A stud for supporting lengths of wallboard of the type which are magnetically attractive, said stud being composed of a magnetically conductive material and having oppositely disposed elongated support surfaces joined together by a web, each of said support surfaces having a longitudinal channel therein, a quantity of permanent magnetic material positioned in each of said channels, said magnetic material being recessed therein from said support surfaces thereby defining air gaps between the magnetic material and said support surfaces, said magnetic material being coupled in flux conducting relationship to the supporting surfaces of said stud, whereby said magnetically attractive wallboard may be firmly held against said supporting surfaces of said stud.
Claim 2
Dependent Claim
111 words
A stud for supporting lengths of wallboard of the type which are magnetically attractive, said stud being composed of a magnetically conductive material and having oppositely disposed elongated support surfaces joined together by a web, each of said support surfaces having a longitudinal channel therein, a quantity of permanent magnetic material positioned in each of said channels, said magnetic material being recessed therein from said support surfaces thereby defining air gaps between the magnetic material and said support surfaces, said magnetic material being coupled in flux conducting relationship to the supporting surfaces of said stud, whereby said magnetically attractive wallboard may be firmly held against said supporting surfaces of said stud.
Claim 3
Dependent Claim
61 words
The combination of claim 1 wherein each of the magnetic poles of the magnetic material positioned within each channel is in contact with one of the side walls of said channel so that, in operation, said wallboard is held to said stud by the magnetic force of the permanent magnetic material acting through said support surfaces on said magnetically attractive wallboard.
Claim 4
Dependent Claim
130 words
A stud for supporting lengths of wallboard of the type which are magnetically attractive, said stud being composed of a magnetically conductive material and having oppositely disposed elongated support surfaces joined together by a web, each of said supporting surfaces having a longitudinal channel therein, a quantity of permanent magnet material positioned in each of said channels, said magnetic material being recessed therein from said support surfaces thereby defining air gaps between the magnetic material and said support surface and each magnetic pole of said permanent magnetic material being in contact with one of the side walls of the channel in which said material is positioned, whereby the magnetic force acts through said support surfaces and said magnetically attractive wallboard is firmly held against said supporting surfaces of said stud.
Claim 5
Dependent Claim
130 words
A stud for supporting lengths of wallboard of the type which are magnetically attractive, said stud being composed of a magnetically conductive material and having oppositely disposed elongated support surfaces joined together by a web, each of said supporting surfaces having a longitudinal channel therein, a quantity of permanent magnet material positioned in each of said channels, said magnetic material being recessed therein from said support surfaces thereby defining air gaps between the magnetic material and said support surface and each magnetic pole of said permanent magnetic material being in contact with one of the side walls of the channel in which said material is positioned, whereby the magnetic force acts through said support surfaces and said magnetically attractive wallboard is firmly held against said supporting surfaces of said stud.
Claim 6
Dependent Claim
15 words
The combination of claim 3 wherein said channels are disposed intermediate of said support surfaces.
Claim 7
Dependent Claim
32 words
The combination of claim 3 wherein each of said support surfaces has a pair of longitudinal channels therein, each of said channels being equidistant from the central longitudinal axis of said stud.
Claim 8
Dependent Claim
18 words
The combination of claim 3 wherein said permanent magnetic material comprise strips of rubber bonded permanent magnetic material.
Claim 9
Dependent Claim
13 words
The combination of claim 6 wherein said bonded material is barium ferrite composite.
Claim 10
Dependent Claim
15 words
The combination of claim 7 wherein said channels are disposed intermediate of said support surfaces.
Claim 11
Dependent Claim
32 words
The combination of claim 7 wherein each of said support surfaces has a pair of longitudinal channels therein, each of said channels being equidistant from the central longitudinal axis of 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) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |