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US4055980A Expired / Lapsed US ⏱️ 0.0 years remaining

Die set

Assignee: ABB Installation Products Inc
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Filing: 1976-10-18
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Granted: 1977-11-01
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Expires: 1996-10-18
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Abstract

Abstract The invention is directed to a die set wherein both the upper and lower die members are molded of a semi-rigid, flexible material. The physical properties of the materials from which the die members are formed are such that they resemble those of typical conductor and connector insulations. The dies can deform around the insulation of the conductor and shield without nicking, cutting or otherwise damaging the metallic conductor or other portions of the insulated conductor. The dies can conform to concentric and nonconcentric conductor configurations and are thus not sensitive to the conductor concentricity and to the conductor size in the range of conductor sizes the dies are formed to handle. The use of alignment ribs, along with the die interlocks serve to center the two die members and stops serve to prevent rotation of a connector in the die set and control the maximum die set opening.

Inventors

  • 👤 John J. Churla

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 17:35
CPC Classifications
B; B21; B21F; B21F15/00; B21F15/02; B21F15/06; H; H01; H01R; H01R43/00; H01R43/04; H01R43/058; H01R4/00; H01R4/10; H01R4/18; H01R43/042; H01R9/00; H01R9/03; H01R9/05

Claims Analysis

Total Claims: 23
Claim 1
Independent Claim 204 words
A die set comprising: a first die member fabricated of a semi-rigid, flexible material and having first and second spaced apart, generally parallel faces; a first recess in said first face to receive a portion of the periphery of a deformable fastener; first and second ridges on said first face, one to either side of said first recess and spaced apart by a first predetermined distance; and a second die member fabricated of a semi-rigid, flexible material and having third and fourth spaced apart, generally parallel faces; a second recess in said third face to receive a portion of the periphery of a deformable fastenera; third and fourth ridges on said third face, one to either side of said second recess and spaced apart by a second predetermined distance less than said first predetermined distance; the engagement of said third and fourth ridges with said first and second ridges when said first and second die members are brought together, align said second recess with said first recess to substantially, completely envelope a deformable fastener placed in said die set first and second recesses when said first face of said first die member is in contact with said third face of said second die member.
Claim 2
Dependent Claim 204 words
A die set comprising: a first die member fabricated of a semi-rigid, flexible material and having first and second spaced apart, generally parallel faces; a first recess in said first face to receive a portion of the periphery of a deformable fastener; first and second ridges on said first face, one to either side of said first recess and spaced apart by a first predetermined distance; and a second die member fabricated of a semi-rigid, flexible material and having third and fourth spaced apart, generally parallel faces; a second recess in said third face to receive a portion of the periphery of a deformable fastenera; third and fourth ridges on said third face, one to either side of said second recess and spaced apart by a second predetermined distance less than said first predetermined distance; the engagement of said third and fourth ridges with said first and second ridges when said first and second die members are brought together, align said second recess with said first recess to substantially, completely envelope a deformable fastener placed in said die set first and second recesses when said first face of said first die member is in contact with said third face of said second die member.
Claim 3
Dependent Claim 20 words
A die set as defined in claim 1, wherein said first recess in said first die member is substantially semicircular.
Claim 4
Dependent Claim 27 words
A die set as defined in claim 1, wherein said second recess in said second die member is made up of segments of circles and linear portions.
Claim 5
Dependent Claim 39 words
A die set as defined in claim 1, wherein said first recess in said first die member is substantially semicircular and said second recess in said second die member is made up of segments of circles and linear portions.
Claim 6
Dependent Claim 40 words
A die set as defined in claim 1, wherein said first recess in said first die member is substantially semicircular and said second recess in said second die member is made up of alternating segments of circles and linear portions.
Claim 7
Dependent Claim 59 words
A die set as defined in claim 1, wherein said second recess in said second die member terminates in a further recess at one end thereof, said further recess engaged by a deformable fastener placed in said die set to prevent rotation of such fastener as said first and second die members are brought into contact with one another.
Claim 8
Dependent Claim 30 words
A die set as defined in claim 1, wherein said first die member is fabricated of a plastic material having a yield strength of approximately 5,000 psi to 8,500 psi.
Claim 9
Dependent Claim 30 words
A die set as defined in claim 1, wherein said second die member is fabricated of a plastic material having a yield strength of approximately 2,000 psi to 5,000 psi.
Claim 10
Dependent Claim 51 words
A die set as defined in claim 1, wherein said first die member is fabricated of a plastic material having a yield strength of approximately 5,000 psi to 8,500 psi and said second die member is fabricated of a plastic material having a yield strength of approximately 2,000 to 5,000 psi.
Claim 11
Dependent Claim 51 words
A die set as defined in claim 1, wherein said first die member is fabricated of a glass filled elastomer having a yield strength of approximately 5,000 psi to 8,500 psi and said second die member is fabricated of urethane having a yield strength of approximately 2,000 psi to 5,000 psi.
Claim 12
Dependent Claim 27 words
A die set as defined in claim 1, wherein said second die member has strengthening braces on two, parallel exterior sides intermediate said third and fourth faces.
Claim 13
Dependent Claim 65 words
A die set as defined in claim 1, wherein said second die member has a stop member extending from said fourth face of said second die member to limit the spacing between said first face of said first die member and said third face of said second die member as said first die member and said second die member are moved away from each other.
Claim 14
Dependent Claim 35 words
A die set as defined in claim 1, further comprising resilient means coupled to said first die means and said second die means to bias said first and second die means away from one another.
Claim 15
Dependent Claim 36 words
A die set as defined in claim 1, further comprising a compression spring coupled to said first die means and said second die means to bias said first and second die means away from one another.
Claim 16
Dependent Claim 22 words
A die set as defined in claim 1, wherein said first die member and said second die member are fabricated by molding.
Claim 17
Dependent Claim 38 words
A die set defined in claim 1, wherein said first die member further comprises an alignment rib to prevent rotation of said first die member in a plane paralled with said first face of said first die member.
Claim 18
Dependent Claim 39 words
A die set as defined in claim 1, wherein said second die member further comprises an alignment rib to prevent rotation of said second die member in a plane parallel with said third face of said second die member.
Claim 19
Dependent Claim 64 words
A die set as defined in claim 1, wherein said first die member further comprises a first alignment rib and said second die member further comprises a second alignment rib, said first and said second alignment ribs preventing the rotation of said first die member and said second die member, respectively, in a plane parallel with said first face of said first die member.
Claim 20
Dependent Claim 54 words
A die set as defined in claim 1, wherein said second die member further comprises strengthening braces on two, parallel exterior sides intermediate said third and fourth faces; and an alignment rib to prevent the rotation of said second die member in a plane parallel with said third face of said second die member.
Claim 21
Dependent Claim 66 words
A die set as defined in claim 1, wherein said second die member further comprises strengthening braces on two, parallel exterior sides intermediate said third and fourth faces; and an alignment rib to prevent the rotation of said second die member in a plane parallel with said third face of said second die member; said braces and said alignment rib being fabricated as an integral unit.
Claim 22
Dependent Claim 31 words
A die set defined in claim 1, wherein said second die member further comprises a strengthening member completely encasing said second die member except for said third and fourth faces thereof.
Claim 23
Dependent Claim 62 words
A die set as defined in claim 1, wherein said second die member further comprises a strengthening member completely encasing said second die member except for said third and fourth faces thereof and an alignment rib on said strengthening member to prevent the rotation of said second die member in a plane parallel with said third face of said second die member.

References Cited (Backward Citations)

US3314135A Cited
US3359779A Cited
US3523351A Cited
US3504417A Cited
US3576122A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-10-31 1981-05-02 1981-11-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-10-31 1985-05-02 1985-11-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-10-31 1989-05-02 1989-11-01 $7700.00 Window Closed / Lapsed

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