Patent US3902005A successfully refreshed from Google Patents.
US3902005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screw-on electrical connector
Assignee: ITE Imperial Corp
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Filing: 1974-03-04
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Granted: 1975-08-26
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Expires: 1994-03-04
Abstract
Abstract A screw-on type wire connector includes a housing tubular shell member closed at its distal end and formed of a deformable insulating plastic material and has an axial bore including a proximal inwardly tapered throat section joining an inwardly tapered intermediate section provided with longitudinally extending raised flats arranged in quadrature and joining by a tapered shoulder, a slightly tapered distal bore of reduced cross section. A tapered elongated helical wire coil nests in the housing bore with its narrow inner end force fitted in the distal bore and extending short of the closed end and the wide end of the coil engaging and distorting the flats in the intermediate bore section. Upon application to a pair of wires, the coil selfthreads into the flat faces and distal bore face.
Inventors
- 👤 Alexander R Norden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:47
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/22
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
169 words
A screw type wire connector comprising a tubular shell formed of a deformable insulating material and being closed at its distal end and provided with an enlarged opening at its proximal end and having an axial bore including a distal section of reduced width and a proximal sEction of increased width and of non-circular transverse cross section and whose minimum width is greater than the width of said distal section, said proximal bore section having at least three longitudinally extending substantial flattened surfaces, said flattened surfaces facing said bore and substantially defining the periphery of a transverse cross section of said proximal bore section, and an elongated helical wire coil housed in said bore and having a distal end and a proximal end, said coil tapering inwardly from its proximal end toward its distal end, the proximal end of said coil having a diameter between the maximum and minimum widths of said proximal bore section and faces of said proximal bore section being distorted by said coil proximal portion.
Claim 2
Dependent Claim
169 words
A screw type wire connector comprising a tubular shell formed of a deformable insulating material and being closed at its distal end and provided with an enlarged opening at its proximal end and having an axial bore including a distal section of reduced width and a proximal sEction of increased width and of non-circular transverse cross section and whose minimum width is greater than the width of said distal section, said proximal bore section having at least three longitudinally extending substantial flattened surfaces, said flattened surfaces facing said bore and substantially defining the periphery of a transverse cross section of said proximal bore section, and an elongated helical wire coil housed in said bore and having a distal end and a proximal end, said coil tapering inwardly from its proximal end toward its distal end, the proximal end of said coil having a diameter between the maximum and minimum widths of said proximal bore section and faces of said proximal bore section being distorted by said coil proximal portion.
Claim 3
Dependent Claim
26 words
The wire connector of claim 1 wherein said flattened faces lie approximately in the planes of the faces of a polygonal prism coaxial with said bore.
Claim 4
Dependent Claim
31 words
The wire connector of claim 2 wherein said proximal bore section has a tapered outer face rearwardly directed and radially inwardly projecting raised portions having inner surfaces defining said flattened faces.
Claim 5
Dependent Claim
40 words
The wire connector of claim 3 wherein said flattened faces are slightly forwardly tapered and joins said proximate bore tapered outer face proximate its distal end, said proximate and distal bore sections being joined by an inwardly forwardly tapered shoulder.
Claim 6
Dependent Claim
26 words
The wire connector of claim 3 including a rearwardly outwardly flared throat at said bore proximal end adjacent the proximal end of said proximal bore section.
Claim 7
Dependent Claim
20 words
The wire connector of claim 5 including a rearwardly facing peripheral shoulder joining said throat and said proximal bore section.
Claim 8
Dependent Claim
29 words
The wire connector of claim 1 wherein the distal end portion of said coil extends into said distal bore section to a point short of the closed end thereof.
Claim 9
Dependent Claim
16 words
The wire connector of claim 7 wherein said distal bore section is slightly forwardly inwardly tapered.
Claim 10
Dependent Claim
22 words
The wire connector of claim 7 wherein the distal end of said coil has an interference fit with the distal bore section.
Claim 11
Dependent Claim
19 words
The wire connector of claim 1 wherein the proximal end of the wire forming said coil projects tangentially outwardly.
References Cited (Backward Citations)
US3676574A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |