Patents by Inventor Larry M. Crofoot

Larry M. Crofoot 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).

  • Publication number: 20190267745
    Abstract: A molded grid pair is revealed that will protect vulnerable contact arrays from unwanted distortion while in manufacture or in service. These grids are specifically designed to accompany contact arrays, such as those that are described in U.S. Pat. No. 5,098,311.
    Type: Application
    Filed: February 27, 2018
    Publication date: August 29, 2019
    Inventors: Larry M. Crofoot, Ronald D. Wright, John T. Venaleck
  • Patent number: 10381770
    Abstract: A molded grid pair is revealed that will protect vulnerable contact arrays from unwanted distortion while in manufacture or in service. These grids are specifically designed to accompany contact arrays, such as arrays of hermaphroditic contacts. The grid may cover the faces of the contacts that are opposite the faces that engage mating contacts, and may cover tips at the free ends of the contacts. The grid may be molded out of plastic, and may be mechanically coupled to a header body that secures and maintains spacing of the linear contacts, for example with the grid snapping onto a body.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: August 13, 2019
    Assignee: Ohio Associated Enterprises, LLC
    Inventors: Larry M. Crofoot, Ronald D. Wright, John T. Venaleck
  • Patent number: 10074923
    Abstract: An electrical connector is revealed that has unique useful characteristics. A sheet metal fork supplies the stored energy that imparts a force to a second member—a plunger that makes contact with the mating circuit. The plunger can be configured to increase or decrease the force or deflection and can be designed with various connection ends with different contact characteristics.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: September 11, 2018
    Assignee: Ohio Associated Enterprises, LLC
    Inventors: Larry M. Crofoot, John T. Venaleck
  • Patent number: 9853385
    Abstract: An electrical connector is revealed that has unique useful characteristics. A sheet metal fork supplies the stored energy that imparts a force to a second member—a plunger that makes contact with the mating circuit. The plunger can be configured to increase or decrease the force or deflection and can be designed with various connection ends with different contact characteristics.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: December 26, 2017
    Assignee: Ohio Associated Enterprises, LLC
    Inventors: Larry M. Crofoot, John T. Venaleck
  • Patent number: 9780498
    Abstract: A cable termination and method are disclosed that electrically and mechanically terminates a bundled cable that requires a radial space only slightly greater than the cable diameter. An electrically-conductive ferrule is connected to an end of a cable, with a conductive adhesive such as a conductive epoxy injected into the ferrule to mechanically connect the ferrule to the cable end, and to electrically couple the ferrule to a shield of the cable, such as a braided wire shield. The ferrule is received by a connector housing, such as being inserted between a pair of connector housing halves, to retain the ferrule mechanically coupled to the housing, and to electrically couple the ferrule to the housing.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: October 3, 2017
    Assignee: Ohio Associated Enterprises, LLC
    Inventors: John T. Venaleck, Larry M. Crofoot
  • Publication number: 20160365676
    Abstract: A cable termination and method are disclosed that electrically and mechanically terminates a bundled cable that requires a radial space only slightly greater than the cable diameter. An electrically-conductive ferrule is connected to an end of a cable, with a conductive adhesive such as a conductive epoxy injected into the ferrule to mechanically connect the ferrule to the cable end, and to electrically couple the ferrule to a shield of the cable, such as a braided wire shield. The ferrule is received by a connector housing, such as being inserted between a pair of connector housing halves, to retain the ferrule mechanically coupled to the housing, and to electrically couple the ferrule to the housing.
    Type: Application
    Filed: June 13, 2016
    Publication date: December 15, 2016
    Inventors: John T. Venaleck, Larry M. Crofoot
  • Publication number: 20140193996
    Abstract: Uniquely positioned slots are provided in the receptacle and uniquely positioned bosses are provided in the plug of a connector pair. These features are designed to prevent the plug from being inserted midspan and damaging the exposed contacts of the receptacle. The bosses may be located near outside corners of the plug, and may protrude sufficiently from the face of the plug to prevent the corners of the plug from being inserted into the receptacle, except when the bosses are aligned with the boss-receiving slots in the receptacle.
    Type: Application
    Filed: May 3, 2012
    Publication date: July 10, 2014
    Applicant: CARDIOINSIGHT TECHNOLOGIES, INC.
    Inventors: William A. Walters, Larry M. Crofoot
  • Patent number: 8475177
    Abstract: A backplane cabling interconnect scheme is provided that includes a wafer based cable termination and an organizer shroud. The shroud complements existing backplane connectors and provides positioning and polarization for the cable terminated wafer. The wafer cable ends can be stacked or arranged in various arrays and are held in place with an integral latch. A permanent latch is provided for high vibration environments.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: July 2, 2013
    Assignee: Ohio Associated Enterprises, LLC
    Inventors: Larry M. Crofoot, John T. Venaleck
  • Publication number: 20110177699
    Abstract: A backplane cabling interconnect scheme is provided that includes a wafer based cable termination and an organizer shroud. The shroud complements existing backplane connectors and provides positioning and polarization for the cable terminated wafer. The wafer cable ends can be stacked or arranged in various arrays and are held in place with an integral latch. A permanent latch is provided for high vibration environments.
    Type: Application
    Filed: January 18, 2011
    Publication date: July 21, 2011
    Inventors: Larry M. Crofoot, John T. Venaleck
  • Publication number: 20110039439
    Abstract: An electrical cable connector has a latch mechanism wherein the moveable portion is part of the mating receptacle, and the mechanism for unlatching resides in the cable connector. A rocker part is located such that one end extends under the resilient latch member and the other end has a surface which is made to rotate about a pivot point by an externally actuated ramp. The rotation of the rocker lifts the resilient member from its seat and releases the connector latch. The actuating ramp is spring loaded to return to its resting position which is the latched position; it is attached to a loop designed to allow a finger pull action to initiate latch disengagement. Forces and friction resistance is managed such that reliable single-hand operation is achieved, with push to engage and pull to disengage.
    Type: Application
    Filed: October 26, 2010
    Publication date: February 17, 2011
    Inventors: Larry M. Crofoot, John T. Venaleck
  • Patent number: 7824208
    Abstract: An electrical cable connector has a latch mechanism wherein the moveable portion is part of the mating receptacle, and the mechanism for unlatching resides in the cable connector. A rocker part is located such that one end extends under the resilient latch member and the other end has a surface which is made to rotate about a pivot point by an externally actuated ramp. The rotation of the rocker lifts the resilient member from its seat and releases the connector latch. The actuating ramp is spring loaded to return to its resting position which is the latched position; it is attached to a loop designed to allow a finger pull action to initiate latch disengagement. Forces and friction resistance is managed such that reliable single-hand operation is achieved, with push to engage and pull to disengage.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: November 2, 2010
    Assignee: Ohio Associated Enterprises, LLC
    Inventors: Larry M. Crofoot, John T. Venaleck
  • Publication number: 20100248522
    Abstract: An electrical cable connector has a latch mechanism wherein the moveable portion is part of the mating receptacle, and the mechanism for unlatching resides in the cable connector. A rocker part is located such that one end extends under the resilient latch member and the other end has a surface which is made to rotate about a pivot point by an externally actuated ramp. The rotation of the rocker lifts the resilient member from its seat and releases the connector latch. The actuating ramp is spring loaded to return to its resting position which is the latched position; it is attached to a loop designed to allow a finger pull action to initiate latch disengagement. Forces and friction resistance is managed such that reliable single-hand operation is achieved, with push to engage and pull to disengage.
    Type: Application
    Filed: March 5, 2010
    Publication date: September 30, 2010
    Inventors: Larry M. Crofoot, John T. Venaleck
  • Patent number: 7682192
    Abstract: An electrical coupler includes a connector receptacle having multiple modules. The modules each include a pair of signal conductors and a ground plane or shield, held together by a dielectric module body. The shields are between the pairs of conductors in adjacent modules, and provide electrical shielding between the pairs of signal contacts of different modules. The signal conductors and the shields may be coupled to a board, such as a circuit board. The receptacle may be an angled receptacle, such as a right angle receptacle. The signal conductors of each pair in the receptacle may have a predetermined amount of skew, having different effective electrical lengths. This may allow signal paths through the receptacle and the board to have a combined electrical path that is substantially the same for the signal conductor pair of one of the modules.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: March 23, 2010
    Assignee: Ohio Associated Enterprises, LLC
    Inventors: John F. Sawdy, Larry M. Crofoot, John T. Venaleck
  • Publication number: 20090246999
    Abstract: An electrical connector has a latch mechanism that includes a pair of hooks that move resiliently outward from the center line of the connector, and a pair of axial springs mechanically coupled to latch mechanism. The axial springs provide force in a direction substantially parallel to the center line of the connector. The axial springs are compressed during initial parts of the process of mating of the connector with a receptacle or other connector. The energy from the compressed springs is then used to pull the connector and the receptacle more tightly together after the initial insertion. The spring forces maintain a tight grip between the connector and the receptacle, avoiding the play that is generally found in hook-based electrical connector latching mechanism. The latching mechanism provides a secure mechanical coupling between the connector and the receptacle, such as been previously obtained in screw-based couplings.
    Type: Application
    Filed: March 24, 2009
    Publication date: October 1, 2009
    Inventors: Larry M. Crofoot, John T. Venaleck
  • Publication number: 20090149067
    Abstract: An electrical coupler includes a connector receptacle having multiple modules. The modules each include a pair of signal conductors and a ground plane or shield, held together by a dielectric module body. The shields are between the pairs of conductors in adjacent modules, and provide electrical shielding between the pairs of signal contacts of different modules. The signal conductors and the shields may be coupled to a board, such as a circuit board. The receptacle may be an angled receptacle, such as a right angle receptacle. The signal conductors of each pair in the receptacle may have a predetermined amount of skew, having different effective electrical lengths. This may allow signal paths through the receptacle and the board to have a combined electrical path that is substantially the same for the signal conductor pair of one of the modules.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 11, 2009
    Inventors: John F. Sawdy, Larry M. Crofoot, John T. Venaleck
  • Patent number: 7291031
    Abstract: A connector assembly includes a female dual row connector, and a male dual row connector configured to be inserted into the female dual row connector. The female connector is configured to be compression mounted onto a circuit card, and has conductive tails for being brought into contact with traces on the card or circuit board. The female connector may have a stiffener to help it maintain its shape. The rows of contacts of the male connector may be selectively brought together (collapsed) or moved apart (expanded). The rows of contacts are collapsed during insertion or removal of the male connector from the female connector, thus allowing zero force insertion of the male connector into the female connector. The collapsing and expanding of the rows for the male connector may be accomplished through any of a variety of mechanisms.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: November 6, 2007
    Assignee: Ohio Associated Enterprises, LLC
    Inventors: Larry M. Crofoot, Alan L. Roath, John T. Venaleck
  • Patent number: 6471547
    Abstract: A high density electrical cable connector has a primary structural support or spine that is made of an electrically conducting material. The cable connector has a strain relief or cable retainer attached at one end of the spine for securing a cable to the spine. The cable connector has electrically conductive terminals at an opposite end, the terminals having contact portions for receiving and electrically connecting to other terminals, such as pins or other contacts on an electronic or electrical device such as a circuit board and/or another electrical connector. An intermediate layer of non-conducting material between the terminals and the spine electrically isolates the terminals from the spine. Wires from the cable may be attached to the terminals, so as to form an electrically conductive path between the cable and other terminals connected, e.g., pins, received by the terminals. One of the wires from the cable may also be attached to the spine to maintain the spine at a ground or other reference voltage.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: October 29, 2002
    Inventors: John T. Venaleck, Larry M. Crofoot
  • Patent number: 6371773
    Abstract: An electrical interconnect system allows high signal density with means of electrical isolation to minimize degradation of electrical signals. The electrical interconnect system includes signal conductors which are surrounded by multiple reference or ground conductors, a given signal conductor for example surrounded by four reference conductors. The interconnect system includes a reference element with two sets of reference conductors, one of the sets offset a distance from the other set.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: April 16, 2002
    Assignee: Ohio Associated Enterprises, Inc.
    Inventors: Larry M. Crofoot, John T. Venaleck
  • Patent number: 5664964
    Abstract: A termination for a plurality of electrical conductors of a substrate includes a strain relief frame molded to the substrate, a connector housing having a plurality of electrical terminals positioned with respect to the frame to orient the terminals with respect to the conductors, and a plurality of the terminals being electrically connected to respective electrical conductors, the connections being made subsequent to the molding of the strain relief to the substrate. A cable termination assembly made by the process of molding a strain relief to a substrate having plural conductors in positional relation, said molding including leaving exposed connecting portions of respective conductors, subsequently attaching plural terminals respectively to exposed connecting portions of said conductors.
    Type: Grant
    Filed: April 10, 1996
    Date of Patent: September 9, 1997
    Assignee: Ohio Associated Enterprises, Inc.
    Inventors: Larry M. Crofoot, Alan L. Roath