Patent US3865461A successfully refreshed from Google Patents.
US3865461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heavy duty electrical connector and strain relief therefor
Assignee: Cooper Wiring Devices Inc
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Filing: 1973-10-10
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Granted: 1975-02-11
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Expires: 1993-10-10
Abstract
Abstract An integral strain relief for a heavy duty electrical connector that includes a housing made of two telescoped, cupshaped nylon sections each of which has an eccentric opening in a transverse wall. The openings are of approximately equal diameters and of the same eccentricity so that when the sections are mutually related the two openings move between alignment and partial disalignment. The two openings are sized to pass a heavy duty insulated electric cable for connection to electric terminals inside the housing when the openings are substantially aligned. Upon subsequent relative rotation of the two housing sections and partially disalignment of the two openings, said openings crimp and thereby clamp the cable thus applying a holding force that relieves the strain that would otherwise be induced at the terminals when an external pulling force is applied to the cable.
Inventors
- 👤 Melvin Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:54
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/58; H01R13/582; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3936; Y10T24/3953
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
213 words
A heavy duty electrical connector adapted to be secured to an end of an insulated electrical cable having conductive cores, said connector comprising: a. a body section including a transverse wall having an eccentrically disposed through opening for passing the cable therethrough; b. a cap section telescopically associated with said body section, said cap section including a transverse wall having an eccentrically disposed through opening for passing the cable therethrough, said openings being of the same diameter and of the same radius of eccentricity, said openings in said cap section initially being in substantial alignment with said opening in said body section, said cap section being angularly rotatable relative to said body section in a first direction to progressively shift said openings out of alignment thereby to distort and clamp the insulation of the cable between opposed edges of said openings; c. means limiting the angular rotation of said cap section to said first direction so as to lock said cap in cable clamping position, said limiting and locking means comprising a ratchet and a cooperating pawl, d. contacts carried by said body section, said contacts including means for electrically and mechanically coupling the conductive cores of the cable thereto; and e. manually operable means for selectively disabling the limiting and locking means.
Claim 2
Dependent Claim
213 words
A heavy duty electrical connector adapted to be secured to an end of an insulated electrical cable having conductive cores, said connector comprising: a. a body section including a transverse wall having an eccentrically disposed through opening for passing the cable therethrough; b. a cap section telescopically associated with said body section, said cap section including a transverse wall having an eccentrically disposed through opening for passing the cable therethrough, said openings being of the same diameter and of the same radius of eccentricity, said openings in said cap section initially being in substantial alignment with said opening in said body section, said cap section being angularly rotatable relative to said body section in a first direction to progressively shift said openings out of alignment thereby to distort and clamp the insulation of the cable between opposed edges of said openings; c. means limiting the angular rotation of said cap section to said first direction so as to lock said cap in cable clamping position, said limiting and locking means comprising a ratchet and a cooperating pawl, d. contacts carried by said body section, said contacts including means for electrically and mechanically coupling the conductive cores of the cable thereto; and e. manually operable means for selectively disabling the limiting and locking means.
Claim 3
Dependent Claim
25 words
The connector in accordance with claim 1 wherein said ratchet is integral with said body section and said pawl is integral with said cap section.
Claim 4
Dependent Claim
42 words
The connector in accordance with claim 1 wherein said cap section includes a slot through said transverse wall thereof for receiving a tool that is adapted to disengage said pawl from said ratchet to thereby to disable the limiting and locking means.
Claim 5
Dependent Claim
42 words
The connector in accordance with claim 1 wherein the first tooth of said ratchet normally prevents said openings from moving out of initial alignment with each other absent an angular force on said cap that moves said pawl past said first tooth.
Claim 6
Dependent Claim
25 words
The connector in accordance with claim 3 wherein said first tooth of said ratchet is enlarged with respect to the remainder of the teeth thereof.
Claim 7
Dependent Claim
41 words
The connector in accordance with claim 1 wherein at least a portion of the peripheral edge of said opening in said cap section, and at least a portion of the peripheral edge of said opening in said body section are chamfered.
Claim 8
Dependent Claim
27 words
The connector in accordance with claim 1 wherein there is further included interlocking means on said cap section and said body section for preventing inadvertent separation thereof.
Claim 9
Dependent Claim
99 words
The connector in accordance with claim 7 wherein said interlocking means comprises a pair of radially inwardly extending projections integral with said cap section and an annular groove on the peripheral surface of said body section said projections being spaced apart by an angle other than 180 degrees said body section including a pair of peripheral notches that are angularly spaced apart the same as the projections, said notches extending from an end of the body section to the groove whereby said projections are longitudinaLly movable through said notches to the groove and then angularly movable in said groove.
Claim 10
Dependent Claim
208 words
A heavy duty electrical connector adapted to be secured to an end of an insulated electrical cable having conductive cores, said connector comprising: a. a body section including a transverse wall having an eccentrically disposed through opening for passing the cable therethrough; b. a cap section telescopically associated with said body section, said cap section including a transverse wall having an eccentrically disposed through opening for passing the cable therethrough, said openings being of the same radius of eccentricity, said opening in said cap section initially being in substantial alignment with said opening in said body section, said cap section being angularly rotatable relative to said body section in a first direction to progressively shift said openings out of alignment thereby to distort and clamp the insulation of the cable between opposed edges of said openings; c. means limiting the angular rotation of said cap section to said first direction so as to lock said cap in cable clamping position, said limiting and locking means comprising a ratchet and a cooperating pawl, d. contacts carried by said body section, said contacts including means for electrically and mechanically coupling the conductive cores of the cable thereto; and e. manually operable means for selectively disabling the limiting and locking means.
Claim 11
Dependent Claim
208 words
A heavy duty electrical connector adapted to be secured to an end of an insulated electrical cable having conductive cores, said connector comprising: a. a body section including a transverse wall having an eccentrically disposed through opening for passing the cable therethrough; b. a cap section telescopically associated with said body section, said cap section including a transverse wall having an eccentrically disposed through opening for passing the cable therethrough, said openings being of the same radius of eccentricity, said opening in said cap section initially being in substantial alignment with said opening in said body section, said cap section being angularly rotatable relative to said body section in a first direction to progressively shift said openings out of alignment thereby to distort and clamp the insulation of the cable between opposed edges of said openings; c. means limiting the angular rotation of said cap section to said first direction so as to lock said cap in cable clamping position, said limiting and locking means comprising a ratchet and a cooperating pawl, d. contacts carried by said body section, said contacts including means for electrically and mechanically coupling the conductive cores of the cable thereto; and e. manually operable means for selectively disabling the limiting and locking 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) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |