Patent US3897925A successfully refreshed from Google Patents.
US3897925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall plug
Assignee: Individual
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Filing: 1973-12-05
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Granted: 1975-08-05
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Expires: 1993-12-05
Abstract
Abstract A wall plug for supporting an object alongside a wall having a sleeve member with a wedge member on the end inserted in the wall, a supporting member with tapered shape and a circumferential slot within which the object is supported for the opposite end, and a screw member connecting the members on each of the ends of the plug.
Inventors
- 👤 Max Mayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:36
CPC Classifications
F; F24; F24D; F24D19/00; F24D19/02; F24D19/024; F24D19/025; F16; F16B; F16B13/00; F16B13/04; F16B13/06; F16B13/063; F16B13/066; F24D19/0203; F24D19/0206; F24D2220/00; F24D2220/20; F24D2220/2009; F24D2220/2054
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
186 words
A wall plug for supporting objects, such as radiators or the like, comprising a sleeve member having a front end portion and a longitudinally slotted rear end portion for insertion into a borehole of a wall, a suppoRting member mounted adjacent the front end portion of said sleeve member, having an at least partly circumferential slot for accommodating an edge or the like of said object, a wedge member adjacent the rear end portion of said sleeve member, having a wedge-shaped or conical surface for penetrating and expanding said sleeve member, and a screw member extending axially through said sleeve member and interconnecting said supporting member and said wedge member in which said supporting member has a first portion substantially greater in diameter than said sleeve member and a second portion separated from said first portion by said slot and tapering in rearward direction so as to attain a rear diameter substantially equal to the diameter of said sleeve member, the tapering part of said second portion forming a sliding surface over which the object being supported can move into the slot in said supporting member.
Claim 2
Dependent Claim
186 words
A wall plug for supporting objects, such as radiators or the like, comprising a sleeve member having a front end portion and a longitudinally slotted rear end portion for insertion into a borehole of a wall, a suppoRting member mounted adjacent the front end portion of said sleeve member, having an at least partly circumferential slot for accommodating an edge or the like of said object, a wedge member adjacent the rear end portion of said sleeve member, having a wedge-shaped or conical surface for penetrating and expanding said sleeve member, and a screw member extending axially through said sleeve member and interconnecting said supporting member and said wedge member in which said supporting member has a first portion substantially greater in diameter than said sleeve member and a second portion separated from said first portion by said slot and tapering in rearward direction so as to attain a rear diameter substantially equal to the diameter of said sleeve member, the tapering part of said second portion forming a sliding surface over which the object being supported can move into the slot in said supporting member.
Claim 3
Dependent Claim
36 words
A wall plug as in claim 1 in which said supporting member has a third portion extending axially away in rearward direction from said second portion and engaging the front end portion of said sleeve member.
Claim 4
Dependent Claim
29 words
A wall plug as in claim 1 in which the second portion of said supporting member has an axial recess accommodating the front end portion of said sleeve member.
Claim 5
Dependent Claim
53 words
A wall plug as in claim 1 in which the second portion of said supporting member has an axial recess accommodating the front end portion of said sleeve member, a lug extending axially away in rearward direction from the bottom of said recess and engaging the front end portion of said sleeve member.
Claim 6
Dependent Claim
36 words
A wall plug as in claim 1 in which the bottom of said circumferential slot in said supporting member is eccentrical with respect to the common longitudinal axis of said sleeve member and said screw member.
Claim 7
Dependent Claim
28 words
A wall plug as in claim 1 in which said supporting member has a partly cylindrical underside being in alignment with the circumferential surface of said sleeve member.
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) | 1978-08-04 | 1979-02-03 | 1979-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-04 | 1983-02-03 | 1983-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-04 | 1987-02-03 | 1987-08-05 | $7700.00 | Window Closed / Lapsed |