US3789484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical contact terminal hand tool
Assignee: G&H Technology Inc
•
Filing: 1972-12-22
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Granted: 1974-02-05
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Expires: 1992-12-22
Abstract
Abstract A tool is provided for facilitating removal and/or insertion of an electrical contact terminal of the type releasably lockable within a bore of an electrical connector body. A pair of elongated, hollow, half-cylindrical working members are mounted for movement between a closed position in which the members mate to form a uniform, open-ended, hollow, cylindrical working portion and an open position in which the working members are spread apart. In the open position the spaced working members are disposed for receiving a wire lead which may be connected to a contact terminal to be removed from, or inserted into, a bore in the connector body. In the closed position the hollow cylindrical working portion may be inserted into the bore without damaging the insulation surrounding the bore for releasing the contact terminal from its locked position therein. The working members are individually mounted on relatively rotatable hinge members having a pivotal axis radially spaced from the axis of said hollow cylindrical working portion, each of the hinge members being equipped with a pair of manually engageable wing grips or handles permitting selective manual movement of the working members between their open and closed positions.
Inventors
- 👤 T Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:51
CPC Classifications
H; H01; H01R; H01R43/00; H01R43/20; H01R43/22; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/5313; Y10T29/532; Y10T29/53209; Y10T29/53257; Y10T29/53274; Y10T29/53283
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
200 words
An electrical contact terminal hand tool for removing and inserting the terminal in a bore within an electrical connector body without damage to the connector body, the bore having a front end defining a stop for limiting forward movement of the terminal and releasable locking means within the bore for limiting rearward movement of the terminal, the body having a bore extension through an insulation layer between the rearward end of the bore and the rear face of the connector body, said tool comprising: a pair of elongated hollow half-cylinder working members movable from a closed position defining an open ended hollow cylindrical working portion to an open position for receiving the terminal and a wire attached thereto; hinge means comprising an elongated cylindrical sleeve and a shaft coaxially disposed within said sleeve, said hinge having a pivotal axis radially spaced from the axis of said cylindrical working portion, one of said half-cylinder working members fixedly mounTed adjacent one end of said sleeve and the other of said working members fixedly mounted adjacent the end of the coaxial shaft; and means for manually operating said hinge means so as to move said half-cylinder working members between closed and open positions.
Claim 2
Dependent Claim
200 words
An electrical contact terminal hand tool for removing and inserting the terminal in a bore within an electrical connector body without damage to the connector body, the bore having a front end defining a stop for limiting forward movement of the terminal and releasable locking means within the bore for limiting rearward movement of the terminal, the body having a bore extension through an insulation layer between the rearward end of the bore and the rear face of the connector body, said tool comprising: a pair of elongated hollow half-cylinder working members movable from a closed position defining an open ended hollow cylindrical working portion to an open position for receiving the terminal and a wire attached thereto; hinge means comprising an elongated cylindrical sleeve and a shaft coaxially disposed within said sleeve, said hinge having a pivotal axis radially spaced from the axis of said cylindrical working portion, one of said half-cylinder working members fixedly mounTed adjacent one end of said sleeve and the other of said working members fixedly mounted adjacent the end of the coaxial shaft; and means for manually operating said hinge means so as to move said half-cylinder working members between closed and open positions.
Claim 3
Dependent Claim
25 words
The hand tool of claim 1 additionally including means for biasing said hinge means so that said half-cylindrical working members are in a closed position.
Claim 4
Dependent Claim
44 words
The hand tool of claim 2 wherein the forward edges of the tip of said half-cylindrical working members are rounded to prevent cutting or gouging of the insulation material when said working portion is passed through the connector body bore extension into the bore.
Claim 5
Dependent Claim
105 words
The hand tool of claim 3 for use in connection with a terminal having a collar intermediate its ends and a stem portion at the rearward end thereof from which the lead wire extends, the stem having a diameter greater than the diameter of the wire and the collar having a diameter greater than the diameter of the stem, said tool working members, when closed, having an inside diameter greater than the diameter of the wire lead and less than the diameter of the terminal collar so that the tip of the working members abuts against the collar when inserting a terminal into the connector.
Claim 6
Dependent Claim
33 words
The tool of claim 4 wherein the outside diameter of said half-cylinder working members, when closed, is no less than the outside diameter of the terminal collar to facilitate removal of a terminal.
Claim 7
Dependent Claim
27 words
The tool of claim 5 wherein the outside diameter of said half-cylindrical working members, when closed, is substantially equal to the outside diameter of the terminal collar.
Claim 8
Dependent Claim
43 words
The tool of claim 1 wherein said means for manually operating said hinge means comprises a pair of radially extending handles connected to one of said hinge members for relative rotation of said hinge members to open and close said half-cylindrical working members.
Claim 9
Dependent Claim
95 words
The tool of claim 7 wherein said handles radially extend from said hinge means in one general direction and the axis of the hollow cylindrical working portion is radially spaced from the axis of said hinge means in a direction diametrically opposite to the direction at which said handles extend whereby when the tool is grasped in one hand by the handles with the hinge means above the handles a wire lead passing through the half cylinder members will be supported above the tool and the hand so as to facilitate manipulation of the tool.
Claim 10
Dependent Claim
148 words
An electrical contact hand tool for facilitating removal and/or insertion of an electrical contact terminal releasably lockable within a bore of an electrical connector body, comprising: a pair of hollow half-cylindrical working members; an elongated sleeve hinge member and an elongated shaft hinge member rotatable within said sleeve hinge member; a pair of manually engageable handles mounted on said sleeve and shaft adjacent one of the ends thereof for selective relative rotation thereof; said working members mounted adjacent the opposite end of said shaft and sleeve for movement therewith between a closed position in which said half-cylindrical working members define an open ended hollow cylindrical working portion for insertion into the connector body bore and an open position in which said half-cylindrical working members are spread apart for receiving a lead wire attached to the terminal; and means continuously urging said half cylindrical members toward said clsoed position.
Claim 11
Dependent Claim
148 words
An electrical contact hand tool for facilitating removal and/or insertion of an electrical contact terminal releasably lockable within a bore of an electrical connector body, comprising: a pair of hollow half-cylindrical working members; an elongated sleeve hinge member and an elongated shaft hinge member rotatable within said sleeve hinge member; a pair of manually engageable handles mounted on said sleeve and shaft adjacent one of the ends thereof for selective relative rotation thereof; said working members mounted adjacent the opposite end of said shaft and sleeve for movement therewith between a closed position in which said half-cylindrical working members define an open ended hollow cylindrical working portion for insertion into the connector body bore and an open position in which said half-cylindrical working members are spread apart for receiving a lead wire attached to the terminal; and means continuously urging said half cylindrical members toward said clsoed position.
Claim 12
Dependent Claim
62 words
The hand tool of claim 9 wherein the center line of said hollow cylindrical working portion defined by said working members when in a closed position is radially offset from the axis of said shaft and sleeve whereby the lead wire can extend through said hollow cylindrical working portion when the terminal is held at the free end of said working portion.
Claim 13
Dependent Claim
40 words
The hand tool of claim 10 wherein said hollow cylindrical working portion has a closed, continuous, smooth outer surface and a rounded front tip to permit the working portion to be easily moved into and out of the connector body.
Claim 14
Dependent Claim
137 words
A hand tool for facilitating removal and/or insertion of an electrical contact terminal which may be mounted within a bore of an electrical connector body and which comprises: a pair of longitudinally extending hollow cylindrical working members; hinge means comprising two hinge members on which are fixedly mounted said working members for relative movement of said working members between a closed position in which said working members define an open ended hollow cylindrical working portion in the forward end of which a contact terminal may be held for insertion into or removal from the bore of the connector, and an open position in which said working members are spread transversely apart for receiving a wire lead connected to the contact terminal; and manually operable means for selectively moving said working members between said closed and open positions.
Claim 15
Dependent Claim
137 words
A hand tool for facilitating removal and/or insertion of an electrical contact terminal which may be mounted within a bore of an electrical connector body and which comprises: a pair of longitudinally extending hollow cylindrical working members; hinge means comprising two hinge members on which are fixedly mounted said working members for relative movement of said working members between a closed position in which said working members define an open ended hollow cylindrical working portion in the forward end of which a contact terminal may be held for insertion into or removal from the bore of the connector, and an open position in which said working members are spread transversely apart for receiving a wire lead connected to the contact terminal; and manually operable means for selectively moving said working members between said closed and open positions.
Claim 16
Dependent Claim
55 words
The hand tool of claim 12 wherein the center line of said hollow cylindrical working portions defined by the closed working members is parallel to and radially offset relative to the thereof. axis of said hinge members so that rotation of said hinge members simultaneously rotates and translates the working members away from one another.
Claim 17
Dependent Claim
28 words
The hand tool of claim 13 additionally including biasing means in cooperative engagement with said manually operable means for normally biasing said working members into said closed position.
Claim 18
Dependent Claim
31 words
The hand tool of claim 13 wherein said hinge means comprises a pair of relatively rotatable elongated coaxial members on which are mounted said half-cylindrical working members at one end thereof
Claim 19
Dependent Claim
79 words
The hand tool of claim 15 wherein each of said half-cylindrical members have an enlarged inside diameter portion adjacent the front ends thereof whereby the enlarged diameter portion accommodates a stem of the terminal when the terminal is held by said tool and the smaller diameter portion of the remainder of the half-cylindrical working members receives a smaller diameter lead wire connected to said terminal stem when the terminal is held by said tool during insertion or removal thereof.
Claim 20
Dependent Claim
226 words
An electrical contact terminal hand tool for removing and inserting the terminal in a bore within an electrical connector body without damage to the connector body, the bore having a front end defining a stop for limiting forward movement of the terminal and releasable locking means within the bore for limiting rearward movement of the terminal, the body having a bore extension between the rearward end of the bore and the rear face of the connector body, the terminal having a pin, collar, and stem and attached to a lead wire, the terminal collar having a diameter greater than the diameter of the terminal stem and the terminal stem having a diameter greater than the diameter of the lead wire, the tool comprising: a pair of elongated half-cylindrical working members having an outside diameter at least equal to the outside diameter of said terminal collar and an inside diameter at least slightly larger than the outside diameter of said lead wire; and means for moving said half-cylindrical working members between open and closed positions, said working members when in a closed position defining a hollow open ended cylindrical working portion for holding the terminal at one end by clamping the end portions of said working members around the terminal stem with the lead wire disposed in the remaining portion of said hollow open ended working portion.
Claim 21
Dependent Claim
226 words
An electrical contact terminal hand tool for removing and inserting the terminal in a bore within an electrical connector body without damage to the connector body, the bore having a front end defining a stop for limiting forward movement of the terminal and releasable locking means within the bore for limiting rearward movement of the terminal, the body having a bore extension between the rearward end of the bore and the rear face of the connector body, the terminal having a pin, collar, and stem and attached to a lead wire, the terminal collar having a diameter greater than the diameter of the terminal stem and the terminal stem having a diameter greater than the diameter of the lead wire, the tool comprising: a pair of elongated half-cylindrical working members having an outside diameter at least equal to the outside diameter of said terminal collar and an inside diameter at least slightly larger than the outside diameter of said lead wire; and means for moving said half-cylindrical working members between open and closed positions, said working members when in a closed position defining a hollow open ended cylindrical working portion for holding the terminal at one end by clamping the end portions of said working members around the terminal stem with the lead wire disposed in the remaining portion of said hollow open ended working portion.
Claim 22
Dependent Claim
33 words
The hand tool of claim 17 wherein said one end of said hollow open ended cylindrical working portion has an enlarged inside diameter substantially equal to the outside diameter of the terminal stem.
References Cited (Backward Citations)
US3110093A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |