Patent US4707567A successfully refreshed from Google Patents.
US4707567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screw-on electrical connector and method of making it
Assignee: Ideal Industries Inc
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Filing: 1986-06-13
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Granted: 1987-11-17
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Expires: 2006-06-13
Abstract
Abstract This is concerned with a so-called screw-on electrical connector and a method or procedure of making it whereby the manufacturing procedure or process is greatly simplified and the resultant connector is of a quality and efficiency generally at least equal to conventional screw-on connectors.
Inventors
- 👤 William E. Blaha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:48
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/22; H01R4/10; H01R4/12; H01R43/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
151 words
In an electrical connector of the screw-on type for joining the ends of two or more electric wires, a cap of stiffly flexible insulating thermoplastic material having a generally central bore open at one end and closed at the other end by an integral end wall, and a generally tapered wire coil in the bore arranged to receive and be turned down over the stripped ends of a plurality of electric wires, at least a substantial extent of the circumferential exterior of the wire coil adhering to the central bore of the cap, substantially all of the exterior of the coil in contact with the cap being adheringly joined therein to form a substantial circumferential interlock therewith of sufficient strength alone to withstand the rotative forces between the cap and coil when the connector is being tuned down on and removed from the stripped ends of a plurality of electric wires.
Claim 2
Dependent Claim
151 words
In an electrical connector of the screw-on type for joining the ends of two or more electric wires, a cap of stiffly flexible insulating thermoplastic material having a generally central bore open at one end and closed at the other end by an integral end wall, and a generally tapered wire coil in the bore arranged to receive and be turned down over the stripped ends of a plurality of electric wires, at least a substantial extent of the circumferential exterior of the wire coil adhering to the central bore of the cap, substantially all of the exterior of the coil in contact with the cap being adheringly joined therein to form a substantial circumferential interlock therewith of sufficient strength alone to withstand the rotative forces between the cap and coil when the connector is being tuned down on and removed from the stripped ends of a plurality of electric wires.
Claim 3
Dependent Claim
19 words
The structure of claim 1 further characterized in that the wire of the coil has a square cross section.
Claim 4
Dependent Claim
19 words
The structure of claim 1 further characterized in that the wire of the coil has a round cross section.
Claim 5
Dependent Claim
15 words
The structure of claim 1 further characterized in that the cap is made of polypropylene.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-11-16 | 1991-05-18 | 1991-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-16 | 1995-05-18 | 1995-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-16 | 1999-05-18 | 1999-11-17 | $7700.00 | Window Closed / Lapsed |