← Back to Patent Explorer
US4326767A Expired / Lapsed US ⏱️ 0.0 years remaining

Wire cutting electrical connector

Assignee: 3M Co
•
Filing: 1980-01-14
•
Granted: 1982-04-27
•
Expires: 2000-01-14
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An electrical wire connector having an insulating body and cover, a conductive contact element and a wire cut-off blade. The cap and body telescope together to force wires into the contact element and to force the wires against the cut-off blade to sever the ends of the wires and the cap and body have cooperating parts to close off the end of the body adjacent the severed wire ends.

Inventors

  • 👤 Raymond A. Silbernagel
  • 👤 Garry L. Sjolander

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 17:44
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/24; H01R4/2416; H01R4/2445; H01R4/245; H01R4/2454

Claims Analysis

Total Claims: 18
Claim 1
Independent Claim 343 words
A wire connector comprising: a hollow, open-topped, insulating body having a base wall, a pair of generally parallel side walls extending generally perpendicularly from said base wall and an end wall extending from said base wall between said side walls at one end of said body, the upper edge of at least a portion of said end wall being inclined at an acute angle to said base wall, and the end of said body opposite said end wall being open for access by at least one wire, a U-shaped, resilient, conductive wire connector element, the legs of the U being wide and thin, one of the legs being formed with at least one wire connecting slot extending from the top of said leg toward the base of said U, the second leg being sharpened along its top edge in alignment with at least one said wire connecting slot in said first leg, said connector element being positioned in said body with the base of the U on said base wall of said body and said second leg abutting and extending above said inclined portion of said body end wall, and an insulating cover formed to telescope with said body, said cover having means to carry a wire into each said connector element slot and to cooperate with said sharpened second leg of said connector element to sever at least one wire extending through said connector upon telescoping of said cover and said body fully together, said body and cover being formed with means to seal the end of said connector adjacent said sharpened second leg of said connector element when said body and cover are fully telescoped together, and complementary latch members to retain said body and cover in an open position to permit at least one wire to be inserted into said body end that is open for access by at least one wire and through said connector between said body and cover, and to retain said body and cover in a crimped position with said cover and body fully telescoped together.
Claim 2
Dependent Claim 343 words
A wire connector comprising: a hollow, open-topped, insulating body having a base wall, a pair of generally parallel side walls extending generally perpendicularly from said base wall and an end wall extending from said base wall between said side walls at one end of said body, the upper edge of at least a portion of said end wall being inclined at an acute angle to said base wall, and the end of said body opposite said end wall being open for access by at least one wire, a U-shaped, resilient, conductive wire connector element, the legs of the U being wide and thin, one of the legs being formed with at least one wire connecting slot extending from the top of said leg toward the base of said U, the second leg being sharpened along its top edge in alignment with at least one said wire connecting slot in said first leg, said connector element being positioned in said body with the base of the U on said base wall of said body and said second leg abutting and extending above said inclined portion of said body end wall, and an insulating cover formed to telescope with said body, said cover having means to carry a wire into each said connector element slot and to cooperate with said sharpened second leg of said connector element to sever at least one wire extending through said connector upon telescoping of said cover and said body fully together, said body and cover being formed with means to seal the end of said connector adjacent said sharpened second leg of said connector element when said body and cover are fully telescoped together, and complementary latch members to retain said body and cover in an open position to permit at least one wire to be inserted into said body end that is open for access by at least one wire and through said connector between said body and cover, and to retain said body and cover in a crimped position with said cover and body fully telescoped together.
Claim 3
Dependent Claim 68 words
The connector of claim 1 wherein said end of said connector open for wire access is open for access by a plurality of wires, said first leg of said wire connector element is formed with a plurality of wire connecting slots and said body end wall is inclined across the width thereof spanning the wire positions thereon aligned with said wire connecting slots in said wire connector element.
Claim 4
Dependent Claim 40 words
The connector of claim 1 wherein said hollow body contains grease in and around said connector element to be forced around wires in the connector upon telescoping of said cover into said body thereby to provide a water resistant connection.
Claim 5
Dependent Claim 46 words
The connector of claim 1 wherein said body and said cover latch members also retain said body and cover in a precrimped position with said cover and body partially telescoped together and the insulation on wires extending through said connector captured between said base and cover.
Claim 6
Dependent Claim 49 words
The connector of claim 1 wherein said means to carry wires into said connector element slots and to cooperate with said sharpened second leg of said connector element to sever wires extending through said connector includes transverse slots in said cover to receive said legs of said connector element.
Claim 7
Dependent Claim 57 words
The connector of claim 1, 2 or 3 wherein, between said wire connector element and said body end that is open for wire access, said body is formed with dividers extending from said base wall in a line transverse of said body to define narrow wire passageways, one aligned with each said slot in said connector element.
Claim 8
Dependent Claim 34 words
The connector of claim 6 wherein said dividers are spaced a distance less than the diameter of insulated wires to be connected and are formed to indent the wire insulation to provide strain relief.
Claim 9
Dependent Claim 22 words
The connector of claim 7 wherein there are two transverse lines of said dividers extending from said base wall of said body.
Claim 10
Dependent Claim 69 words
The connector of claim 1, 2 or 3 wherein said means to seal the end of said connector adjacent said sharpened second leg of said connector element when said body and cover are fully telescoped together comprises the end of said cover opposite said inclined edge of said body end wall contacting said inclined edge of said body end wall when said body and cover are fully telescoped together.
Claim 11
Dependent Claim 21 words
The wire connector of claim 9 wherein said cover is formed to telescope into said body between said body side walls.
Claim 12
Dependent Claim 41 words
The wire connector of claim 1, 2 or 3 wherein said means to seal the end of said connector adjacent said sharpened second leg of said connector element when said body and cover are fully telescoped together comprises a hinged door.
Claim 13
Dependent Claim 14 words
The connector of claim 11 wherein said hinged door forms part of said cover.
Claim 14
Dependent Claim 15 words
The connector of claim 12 wherein said body is formed to telescope into said cover.
Claim 15
Dependent Claim 58 words
The connector of claim 1, 2 or 3 wherein at said end of said body that is open for wire access said connector is formed with one wire insertion port aligned with each wire connecting slot in said wire connector element to aid in guiding wires through said connector between said body and cover in said open position.
Claim 16
Dependent Claim 15 words
The connector of claim 14 wherein said wire insertion ports are formed in said cover.
Claim 17
Dependent Claim 38 words
The connector of claim 1, 2 or 3 wherein a plurality of stabilizing posts extend from the top edge of said second leg of said connector element and said cover is formed with wells to receive said posts.
Claim 18
Dependent Claim 22 words
The connector of claim 16 wherein the ends of said stabilizing ports are barbed and bite into the sidewalls of said wells.

References Cited (Backward Citations)

US3609644A Cited
US3718888A Cited
US3804971A Cited
US3835444A Cited
US3865460A Cited
US4074929A Cited
US3955873A Cited
US3958853A Cited
US4157208A Cited
GB2034538A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1985-04-26 1985-10-26 1986-04-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1989-04-26 1989-10-26 1990-04-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1993-04-26 1993-10-26 1994-04-27 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag