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US4493467A Expired / Lapsed US ⏱️ 0.0 years remaining

Strain relief

Assignee: Illinois Tool Works Inc
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Filing: 1982-03-25
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Granted: 1985-01-15
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Expires: 2002-03-25
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Abstract

Abstract A one-piece plastic strain relief bushing for power line cords comprises a main body portion with a pivoted locking portion at one end thereof. The main body portion includes spaced-apart parallel walls which grip the line cord such that the line cord in the bushing is in a predetermined serpentine path. The pivoted locking portion snaps fits with an end section of the main body portion to form a slot which completely circumscribes the line cord.

Inventors

  • 👤 Jesus Borja

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 04:07
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/06; H02G3/0616; H02G3/0625; H02G3/0633

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 214 words
A one-piece plastic strain relief bushing for a power cord line comprising a longitudinally extending main body portion having a first end wall with a cord receiving notch at one end and having an end section at the other end including a second end wall with a cord receiving notch, a pair of spaced intermediate walls being integrally formed on said main body portion between said first and second end walls in parallel relation thereto, said intermediate walls each having a cord receiving edge that is disposed relative to said cord-receiving notches of said end walls in a manner that the cord-receiving edge portions of said notches and the cord-receiving edges of said intermediate walls cooperate with said first and second end walls to define a serpentine path for receiving a power line cord in a manner to impart an abrupt bend in the cord, said end section further including a locking portion hingedly connected to said second end wall adjacent to said cord-receiving notch for displacement between opened and closed positions, said locking portion having an edge portion which overlies said second cord-receiving notch when in said closed position to thereby define an opening through which said cord is positionable, and fastening means for selectively retaining said locking portion in said closed position.
Claim 2
Dependent Claim 214 words
A one-piece plastic strain relief bushing for a power cord line comprising a longitudinally extending main body portion having a first end wall with a cord receiving notch at one end and having an end section at the other end including a second end wall with a cord receiving notch, a pair of spaced intermediate walls being integrally formed on said main body portion between said first and second end walls in parallel relation thereto, said intermediate walls each having a cord receiving edge that is disposed relative to said cord-receiving notches of said end walls in a manner that the cord-receiving edge portions of said notches and the cord-receiving edges of said intermediate walls cooperate with said first and second end walls to define a serpentine path for receiving a power line cord in a manner to impart an abrupt bend in the cord, said end section further including a locking portion hingedly connected to said second end wall adjacent to said cord-receiving notch for displacement between opened and closed positions, said locking portion having an edge portion which overlies said second cord-receiving notch when in said closed position to thereby define an opening through which said cord is positionable, and fastening means for selectively retaining said locking portion in said closed position.
Claim 3
Dependent Claim 28 words
A strain relief bushing as defined in claim 1 in which said main body portion further includes tapered projections for retaining said bushing in an apertured supporting structure.

References Cited (Backward Citations)

US2563604A Cited
US3464659A Cited
US3499097A Cited
US3493205A Cited
US4033535A Cited
US4142064A Cited
US4216930A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-01-15 1988-07-16 1989-01-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-01-15 1992-07-16 1993-01-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-01-15 1996-07-16 1997-01-15 $7700.00 Window Closed / Lapsed

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