US4641905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cordset clamp system
Assignee: Leviton Manufacturing Co Inc
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Filing: 1985-10-03
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Granted: 1987-02-10
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Expires: 2005-10-03
Abstract
Abstract A clamping system for holding an electrical cord to the wall plate of an electrical appliance. The wall plate forms a circular hole in which an externally threaded body having a cord passage is mounted. A flange of the body is positioned against the inner surface of the wall plate. A pair of flexibly movable arm members having opposed teeth extends in an axial direction from the outer end of the body outside the wall plate. A nut member is threaded onto the body so as to draw the flange and the nut member together with the wall plate between them. The nut member presses the teeth of the arm member together into gripping relationship with the cord. The body can be split into semicircular bodies for easy positioning of the cord.
Inventors
- 👤 John M. Poliak
- 👤 Herbert Anker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:16
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/06; H02G3/0616; H02G3/0625; H02G3/065
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
193 words
A clamping system for holding an electrical cord to the wall plate of an electrical appliance, comprising, in combination, said wall plate forming a generally circular aperture, a cylindrical body forming external threads and having an axis and a body diameter slightly smaller than the diameter of said aperture and forming an axial passage adapted to pass said cord, said body having opposed body inner and outer ends, said body being positioned in said aperture, flange means connected to and extending radially outwardly from said body inner end, arm means flexibly attached to said body outer end, said arm means being for gripping said cord, and nut means having opposed inner and outer portions and forming a chamber adapted to contain said body and said arm means and further forming internal threads at said internal portion adapted to mate with said external threads of said body, said nut means being mounted to said body so as to grip said wall plate between said nut means at said inner portion and said body at said flange means and being for pressing said arm means into gripping relationship with said cord at said outer portion.
Claim 2
Dependent Claim
193 words
A clamping system for holding an electrical cord to the wall plate of an electrical appliance, comprising, in combination, said wall plate forming a generally circular aperture, a cylindrical body forming external threads and having an axis and a body diameter slightly smaller than the diameter of said aperture and forming an axial passage adapted to pass said cord, said body having opposed body inner and outer ends, said body being positioned in said aperture, flange means connected to and extending radially outwardly from said body inner end, arm means flexibly attached to said body outer end, said arm means being for gripping said cord, and nut means having opposed inner and outer portions and forming a chamber adapted to contain said body and said arm means and further forming internal threads at said internal portion adapted to mate with said external threads of said body, said nut means being mounted to said body so as to grip said wall plate between said nut means at said inner portion and said body at said flange means and being for pressing said arm means into gripping relationship with said cord at said outer portion.
Claim 3
Dependent Claim
125 words
A system according to claim 1, wherein said arm means includes a pair of opposed arm members flexibly attached to and extending in an axial direction from said body outer end, said arm members each having a circular arc outer side and an opposed inner side relative to said cord, and having a plurality of opposed, axially transverse teeth extending transversely inward from said inner side relative to said cord, said arm members being flexibly movable between non-gripping and gripping positions, wherein in said non-gripping position said teeth are in a non-gripping relationship with said cord, and wherein in said gripping position said teeth are pressed into said cord so as to prevent said cord from being moved axially or rotationally relative to said body.
Claim 4
Dependent Claim
65 words
A system according to claim 2, wherein said nut means includes a nut member forming said chamber, said inner portion having an inner diameter generally equal to said body diameter and having a circular inner end rim, said inner portion forming said internal threads; said wall plate having an outer surface, said inner end rim being pressed against said outer surface of said wall plate.
Claim 5
Dependent Claim
53 words
A system according to claim 3, wherein said outer portion of said nut member has an outer diameter less than said inner diameter of said inner portion, said outer portion forming an outer chamber having a generally cylindrical inner surface adapted to press said arm members towards one another into said gripping position.
Claim 6
Dependent Claim
22 words
A system according to claim 1, wherein said body, said arm means, and said nut means are made of a plastic material.
Claim 7
Dependent Claim
12 words
a system according to claim 5, wherein said plastic material is polypropylene.
Claim 8
Dependent Claim
12 words
A system according to claim 5, wherein said plastic material is nylon.
Claim 9
Dependent Claim
15 words
A system according to claim 1, wherein said cord is sized to said arm means.
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) | 1990-02-09 | 1990-08-11 | 1991-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-09 | 1994-08-11 | 1995-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-09 | 1998-08-11 | 1999-02-10 | $7700.00 | Window Closed / Lapsed |