Abstract: A wire connector having a base and cap, and the base and cap are provided with interfitting tapered keys and keyways to retain the cap in place on the base member and help maintain the cap on the base by the interfit between the walls of keys with the converging walls of the keyways.
Type:
Grant
Filed:
September 23, 1991
Date of Patent:
June 9, 1992
Assignee:
Minnesota Mining and Manufacturing Company
Abstract: A package for handling and shipping optical fiber jumpers which permit testing during manufacturing and by the end user, which package includes a sheet having allochiral halves each with cut-outs to form ears upon which to spirally wind a length of optical fiber having a connector plug formed on each end. The halves are folded together and subsequently the length of fiber bridging the fold line can be cut to provide two pigtails.
Type:
Grant
Filed:
January 28, 1991
Date of Patent:
May 5, 1992
Assignee:
Minnesota Mining and Manufacturing Company
Inventors:
James P. Malone, Warren J. Biskupek, Edward B. Lurie
Abstract: Elements for making butt splices in optical fibers formed of a deformable material, e.g. metal or polymeric material, can be formed to define three surfaces for contacting the fibers to be spliced. The surfaces are formed between two legs of an element such that when the legs are closed onto the fibers, the surfaces center the fibers by embedding the fibers into the surfaces and afford a resilient spring compression reserve force on the aligned fibers to maintain them in contact and clamp the fibers in the element.
Type:
Grant
Filed:
April 26, 1991
Date of Patent:
April 7, 1992
Assignee:
Minnesota Mining and Manufacturing Company
Abstract: An electrical connector which is adapted to join two or more wires together and comprises a pair of hollow cylinders joined together and disposed such that one end portion of each cylindrical is free to be bent back upon itself after a wire is inserted therein to make good contact between the cylinder and the wire.
Type:
Grant
Filed:
December 21, 1990
Date of Patent:
March 10, 1992
Assignee:
Minnesota Mining and Manufacturing Company
Abstract: A cable stacking member and positioning device comprising a support member having a plurality of elongated slots stacked on a base plate for retaining electrical cables or wires. The member is formed of a plastic material and has a provision for securing and positioning the cable stacking member to a framing member.
Type:
Grant
Filed:
August 31, 1990
Date of Patent:
February 25, 1992
Assignee:
Minnesota Mining and Manufacturing Company
Abstract: A splice organizing tray can protect the optical fibers from excessive stress if the fibers stored in the tray are organized in paths which do not require bending of the fibers beyond their approved bend radius, which do not require the fibers to cross, and which maintain the fibers in contact with the support substantially all the time. The tray has a convex bottom wall to urge the fibers against the edges of the tray, a recessed splice support area, and resilient snaps to engage the ends of the splices to permit the splices to be placed closer together. Holes below the splices afford the removal of the splices without danger to the adjacent fibers.
Type:
Grant
Filed:
May 21, 1990
Date of Patent:
December 24, 1991
Assignee:
Minnesota Mining and Manufacturing Company
Abstract: A connector for use with closely spaced electrical leads or wires comprising a contact element of conductive material having U-shaped contact legs and an inverted T-shaped pressing element to strip insulation to make spring contact with the electrical lead or wire and the U-shaped contact legs.
Type:
Grant
Filed:
March 15, 1991
Date of Patent:
December 3, 1991
Assignee:
Minnesota Mining and Manufacturing Company
Abstract: An electrical connector formed of a polyolefin is more compliant than the connectors formed of polycarbonate and therefor the cap and base are formed with interlocking wedging elements to resist separation of the cap from the base prior to closing the connector onto a plurality of wires for making a connection therebetween.
Type:
Grant
Filed:
January 17, 1991
Date of Patent:
November 26, 1991
Assignee:
Minnesota Mining and Manufacturing Company
Inventors:
George J. Knox, Daniel F. Cronch, Martin G. Afflerbaugh
Abstract: Press fit pins for use with printed circuit board substrates must maintain pressure with through holes of wide displacement range and a pin with symmetrical mounting portions, each with an arm to engage the inner periphery of the opposite portion elastically, increases range of permissible fabrication deviation.
Type:
Grant
Filed:
September 17, 1990
Date of Patent:
October 8, 1991
Assignee:
Minnesota Mining and Manufacturing Company
Abstract: An apparatus for testing of integrated circuits (ICs) has parallel plates arranged at a fixed distance from each other, each having a plurality of aligning bores, and a plurality of equally oriented contact elements made of resilient sheet material. The elements have a first straight end portion sitting in a bore of one of said plates and a second straight end portion sitting in an aligning bore of the other of said plates. A pressure member is used to move an IC toward the outer side of one of the plates and the first end portions of the contact elements, which first ends extend slightly beyond the outer side of one of the plates and form a pattern which corresponds to the pattern of contact points of the IC to be tested.
Type:
Grant
Filed:
January 31, 1990
Date of Patent:
October 8, 1991
Assignee:
Minnesota Mining and Manufacturing Company
Abstract: An optical fiber termination module for use in terminating having an end wall and a splice magazine, a connector supported on said end wall, one plug of which has a short optical fiber extending therefrom straight to a splice supported in the magazine, and the support having a flucrum to afford tilting of the support intermediate its ends to afford movement of the end wall to a position away from the end wall of other modules to allow easy access to the connector for attaching a distribution plug.
Type:
Grant
Filed:
August 15, 1989
Date of Patent:
October 1, 1991
Assignee:
Minnesota Mining and Manufacturing Company
Abstract: Die plates for forming moisture seals about the junctions of wire harnesses afford improved wire separation and contact between the sealant material in a sealant pad and the wires if the opposed die plates have an elastomeric surface, and the opposed surface of at least one plate is radiused causing the sealant material to separate the wires and flow between and around each wire.
Type:
Grant
Filed:
September 22, 1989
Date of Patent:
July 30, 1991
Assignee:
Minnesota Mining and Manufacturing Company
Inventors:
James R. More, Arnold T. Olsen, John S. Young
Abstract: Flexible retaining tongues are formed within a cable receiving passageway of a basic body, the tongues retaining the cable therebetween, and being resiliently deformed upon insertion of the cable whereby an effective strain relief is achieved concurrently.
Type:
Grant
Filed:
March 9, 1990
Date of Patent:
July 9, 1991
Assignee:
Minnesota Mining and Manufacturing Company
Abstract: A twist-on type spring connector comprised of a tapered coiled spring secured within a molded insulative shell having detachable wings, thereby allowing the connector to fit in cramped or crowded locations.
Type:
Grant
Filed:
August 2, 1990
Date of Patent:
June 11, 1991
Assignee:
Minnesota Mining and Manufacturing Company
Abstract: Elements for making butt splices in optical fibers formed of a deformable material, e.g. metal or polymeric materials, can be formed to define three surfaces for contacting the fibers to be spliced. The surfaces are formed between two legs of an element such that when the legs are closed onto the fibers, the surfaces center the fibers by embedding the fibers into the surfaces and afford a resilient spring compression reserve force on the aligned fibers to maintain them in contact and clamp the fibers in the element.
Type:
Grant
Filed:
November 15, 1989
Date of Patent:
May 7, 1991
Assignee:
Minnesota Mining and Manufacturing Company
Abstract: An adjustable conductive body strap which is readily adjustable and which utilized an elastomerically extensible electrically conductive band held together and adapted to be joined to a grounding cord which makes 360.degree. electrical contact and continuity with the body is desired and this is accomplished by having one end of the band fastened by contact with a conductive plate which has teeth which penetrate the second end.
Type:
Grant
Filed:
June 8, 1990
Date of Patent:
March 5, 1991
Assignee:
Minnesota Mining and Manufacturing Company
Abstract: A socket assembly for top-loading IC devices having a cam member, actuated by a vertically moving guide member, positioned for engaging the contact elements and retracting the contacting portions thereof to allow insertion or removal of the IC device in relationship to the socket assembly.
Type:
Grant
Filed:
March 8, 1990
Date of Patent:
February 19, 1991
Assignee:
Minnesota Mining and Manufacturing Company
Abstract: A carrier device, for supporting an electronic component having a plurality of fragile leads extending therefrom, comprising a body having a first and a second surface and having a generally centrally positioned opening, a pair of beams extending into the opening, each with hooks to grasp a component, and a series of interconnected bars joined to the beams to allow flexing of the beams to accept a component between the hooks and for biasing the beams toward each other to contain the component. The body being formed of static dissipative material.
Type:
Grant
Filed:
November 17, 1989
Date of Patent:
February 12, 1991
Assignee:
Minnesota Mining and Manufacturing Company
Abstract: An optical fiber termination for the termination of fibers at a residence, apartment or factory or office work station should be convenient and readily accomplished by the technician. The termination is afforded by a module including a support having a wall to support a connector, a plug and short pigtail fiber reaching the center of a splice in a splice magazine on the support.
Type:
Grant
Filed:
August 15, 1989
Date of Patent:
January 22, 1991
Assignee:
Minnesota Mining and Manufacturing Company
Abstract: A module for use in an array for modules for terminating transmission lines and making them readily accessible to connection to distribution lines, the modules comprising small rectangular bases having an end wall supporting a connector, and means affording the tilting movement of each module intermediate the ends of each base to move the end wall from a position aligned with the end walls of other modules to a position affording ready access to the connector of the tilted end wall.
Type:
Grant
Filed:
August 15, 1989
Date of Patent:
January 22, 1991
Assignee:
Minnesota Mining and Manufacturing Company