Patents by Inventor James W. Robertson

James W. Robertson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5321577
    Abstract: A single modular assembly (10) has two terminals (18) in housing cavities (28) each with a pair of slots (38) for termination by rotary actuation to respective conductors of two cables, for crossconnecting or splicing the tip and ring lines of a customer's service line with those of a cable extending to the main distribution line. Each terminal (18) is in electrical engagement with a circuit wire (40) extending to a separate portion (20) of the module for electrical connection to an active electrode of a protector element (24). The two protector elements (24) each include a ground electrode (76) grounded to a common ground strap (54) which includes a contact section (60,64) exposed along the bottom of the module to be assuredly engaged with a ground strap (122) along the floor (112) of the enclosure (110) upon mounting of the module (10) therein, for grounding to a ground stud for external system grounding.
    Type: Grant
    Filed: May 8, 1992
    Date of Patent: June 14, 1994
    Assignee: The Whitaker Corporation
    Inventors: Harry M. Capper, James W. Robertson
  • Patent number: 5317474
    Abstract: A single modular assembly (10) has two terminals (16) in housing cavities (22) each with a pair of slots (46,48) for termination by rotary actuation to respective conductors (30,32) of two cables, for crossconnecting or splicing the tip and ring lines of a customer's service line with those of a cable extending to the main distribution line. Each terminal (18) is in electrical engagement with one of the two active electrode leads (52,54) of a common protector unit (20) contained in a housing section (18) of the module. The protector unit (20) includes a ground electrode lead (50) grounded to a ground strap (70) which includes a contact section (72) extending from the module to be assuredly engaged with a ground circuit. Crossconnection of the tip and ring wires of service cables in the module simultaneously provides voltage and current surge protection for the circuits.
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: May 31, 1994
    Assignee: The Whitaker Corporation
    Inventors: Harry M. Capper, James W. Robertson
  • Patent number: 5296646
    Abstract: A protector module (50) includes a housing (52) having cavities (58) into which are inserted surge protector elements (150). Each protector element upon full insertion engages a deflectable contact portion (82) of a first contact member (80) with an active electrode (156) thereof with the first contact member terminated at a second contact section (88) to a line between a central office and the customer, for providing surge protection to that circuit.
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: March 22, 1994
    Assignee: The Whitaker Corporation
    Inventors: Harry M. Capper, James W. Robertson
  • Patent number: 5254015
    Abstract: A one-piece insulation displacing terminal having a first portion, a second portion, and a connecting portion connecting the first and second portions. The connecting portion is torsional in order to permit the first portion to rotate relative to the second portion. In one embodiment, the first portion has adjacent first and second walls which are arcuately shaped and which have wire receiving openings therein. The wire receiving openings have associated wire receiving slots. The second portion is mounted in an insulating housing of a connector assembly on a post having a post opening therethrough which has a conical reducer for permitting only wires of predetermined gauge to pass therethrough. After the second portion is secured to a base of the insulating housing, a wall portion of a cap may be slidable mounted between the first and second walls of the first portion. The wall portion has an opening therein to permit a wire to pass between wire receiving openings in the first and second walls.
    Type: Grant
    Filed: October 7, 1991
    Date of Patent: October 19, 1993
    Assignee: AMP Incorporated
    Inventor: James W. Robertson
  • Patent number: 5219302
    Abstract: An enclosure for terminal blocks for interconnecting conductors of multiconductor cables includes provision for two or more terminal block modules. Each terminal block module includes two terminal blocks defined by a tubular housing section extending from a common base section of a dielectric housing and has an annular cavity extending to an open end, and a tubular one-piece terminal is secured therewithin around a center post of the housing section and is rotatable therewithin by a generally tubular actuator also within said annular cavity and adapted to be rotated during splicing of wires. Each terminal block includes a pair of wire-receiving apertures into which wire ends are inserted to extend through insulation piercing slots of said terminal, and upon actuating rotation said slots pierce the insulation and engage the conductor of each wire thus interconnecting them.
    Type: Grant
    Filed: May 31, 1991
    Date of Patent: June 15, 1993
    Assignee: AMP Incorporated
    Inventors: James W. Robertson, Francis J. Shay
  • Patent number: 5146650
    Abstract: An enclosure for terminal blocks for interconnecting conductors of multiconductor cables includes provision for two or more terminal block modules. A lid is pivotably hinged to a box-like base section, by dowels trapped in slots of hinge hooks by free ends of latch arms, with both hinge hooks and latch arms molded integrally to the rear wall of the base section. A single-piece molded clip is also defined by the hook and latch arm joined to a common base section.
    Type: Grant
    Filed: May 31, 1991
    Date of Patent: September 15, 1992
    Assignee: AMP Incorporated
    Inventor: James W. Robertson
  • Patent number: 5145388
    Abstract: An enclosure for terminal blocks for interconnecting conductors of multiconductor cables includes provision for two or more terminal block modules. A lid is pivotably hinged to a box-like base section, with the base section including front and rear walls extending upwardly from a floor, and side walls extending downwardly from a transverse section of the lid into the open regions between the front and rear walls of the base section when the lid is pivoted to its closed position. When the enclosure is mounted vertically the lid is pivotable to an open position overcentered to remain open unassisted. The side walls include ribs having projections which engage upper edges of ridges extending upwardly from side edges of the floor between the front and rear walls, thus camming the lower edges of the side walls inwardly tightly against outwardly facing surfaces of the ridges for sealing.
    Type: Grant
    Filed: May 31, 1991
    Date of Patent: September 8, 1992
    Assignee: AMP Incorporated
    Inventors: Alan W. Brownlie, John W. Derr, Scott A. Keener, James W. Robertson, Francis J. Shay
  • Patent number: 5120245
    Abstract: An assembly including a housing having a base section from which extend a plurality of silos each housing a terminal having wire terminating sections at or near each end. Along a wire receiving face, first wire terminating sections of the terminals are exposed by wall openings permitting wire insertion for wire termination. Along an interconnection face, second wire termination sections are terminated to wires which extend to other terminals within an electrical connector which is embedded by sealing material along the base section with a mating face exposed, and the wire lengths and terminal ends are also embedded and sealed. The terminals may each have two cylindrical parts with an outer section rotatable within the silo about an inner section to terminate to a wire end inserted into a wall opening of the silo, using insulation displacement slots.
    Type: Grant
    Filed: May 2, 1991
    Date of Patent: June 9, 1992
    Assignee: AMP Incorporated
    Inventors: James W. Robertson, Francis J. Shay
  • Patent number: 5006077
    Abstract: A multiple piece terminal includes a first section which is stationary relative to the housing of the connector and rotatable sections which are rotatable relative to the first section. Each of the sections is comprised of a single thickness of metallic material wrapped into a substantially cylinderical configuration, where the rotatable sections are of a larger outer diameter than the first section such that the rotatable sections can engagingly overlie the first section. The first section is mounted to an insulative housing with a post section upstanding through the center of the first section. The post has at least one through opening which includes at least partially along its length, a frusto-conical section for wire section through the opening. The rotatable sections of the terminal has two wire receiving openings, each in communication with a wire-receiving slot around the circumference of the cylinder, with the two wire receiving openings being on opposed sides of the through opening on the post.
    Type: Grant
    Filed: July 28, 1989
    Date of Patent: April 9, 1991
    Assignee: AMP Incorporated
    Inventors: Winfield W. Loose, James W. Robertson, Francis J. Shay
  • Patent number: D346386
    Type: Grant
    Filed: March 18, 1993
    Date of Patent: April 26, 1994
    Assignee: The Whitaker Corporation
    Inventors: Alan W. Brownlie, Scott S. Duesterhoeft, James W. Robertson, Francis J. Shay
  • Patent number: D352699
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: November 22, 1994
    Assignee: The Whitaker Corporation
    Inventors: Harry M. Capper, James W. Robertson