Patents Assigned to AT&T Company
  • Patent number: 10064243
    Abstract: A heating pad with a thermostatic control circuit coupled to a resistance heating element. The resistance heating element and an acrylic based polymer adhesive are glued between polyester film layers. The film layers and heating element are contained with a plastic sleeve. The thickness and properties of the polyester film and adhesive forms a fuse. The adhesive delaminates the polyester film at excessive temperatures causing the resistance heating element to sever thereby creating an open circuit that halts operation of the heating pad. The thermostatic control circuit includes a hysteresis circuit that compares analog signals across two thin film resistors to provide a control signal to a power controller to selectively vary the power output to the heating element. The thermostatic control circuit is an integrated circuit board disposed within the fused plastic sleeve.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: August 28, 2018
    Assignee: DSM&T Company, Inc.
    Inventor: Sergio Corona
  • Patent number: 9912081
    Abstract: A cover assembly for an electrical connector at the end of a sheathed cable containing several insulated wires. An insulation piercing clip couples light bulb leads to the wires. A translucent housing encloses the light bulb, said insulation piercing clip, the entire section of unsheathed insulated wires, a portion of the electrical connector and a portion of the sheathed cable. The cover assembly is illuminated by the light bulb when power flows through the electrical connector and may be color coded to indicate connector function.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: March 6, 2018
    Assignee: DSM&T Company, Inc.
    Inventor: Sergio Corona
  • Patent number: 9781772
    Abstract: A heat mat with thermostatic control having a reference voltage generating source that provide high voltage DC for a power controller and low voltage for a temperature sensor and hysteresis circuit. The sensor and hysteresis circuit establish a temperature threshold signal that is delivered to the resistance heating element. The resistance heating element is sandwiched between two layers of material with adhesive. Two layers of PVC protects the sandwich. In manufacturing the heat mat, the resistance heating element is placed with adhesive between two layers of material then cured and degassed under vacuum. The thermostatic control is sealed within an overmold housing or flat pack.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: October 3, 2017
    Assignee: DSM&T Company, Inc.
    Inventor: Sergio Corona
  • Patent number: 9614361
    Abstract: A waterproof seal for electrical assemblies having conductive wires attached to a metal contact and inserted into a connector body. The conductive wires and metal contact are coated with solder to fill the gaps. The space between the soldered wires and the connector body are filled with an epoxy. The wire insulation and connector body are continuously sealed with a bonding agent. A section of wire insulation and the connector body are encased within an outer plastic jacket overmold.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: April 4, 2017
    Assignee: DSM&T Company, Inc.
    Inventor: Sergio Corona
  • Patent number: D770386
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: November 1, 2016
    Assignee: DSM&T Company, Inc.
    Inventor: Sergio Corona
  • Patent number: D770981
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: November 8, 2016
    Assignee: DSM&T Company, Inc.
    Inventor: Sergio Corona
  • Patent number: D774465
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: December 20, 2016
    Assignee: DSM&T Company, Inc.
    Inventor: Sergio Corona
  • Patent number: D774466
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: December 20, 2016
    Assignee: DSM&T Company, Inc.
    Inventor: Sergio Corona
  • Patent number: D794572
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: August 15, 2017
    Assignee: DSM&T Company, Inc.
    Inventor: Sergio Corona
  • Patent number: D813821
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: March 27, 2018
    Assignee: DSM&T Company, Inc.
    Inventor: Sergio Corona
  • Patent number: D813822
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: March 27, 2018
    Assignee: DSM&T Company, Inc.
    Inventor: Sergio Corona
  • Patent number: D816040
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: April 24, 2018
    Assignee: DSM&T Company, Inc.
    Inventor: Sergio Corona
  • Patent number: D816616
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: May 1, 2018
    Assignee: DSM&T Company, Inc.
    Inventor: Sergio Corona
  • Patent number: D818964
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: May 29, 2018
    Assignee: DSM&T Company, Inc.
    Inventor: Sergio Corona
  • Patent number: D824856
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: August 7, 2018
    Assignee: DSM&T Company, Inc.
    Inventor: Sergio Corona
  • Patent number: D824862
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: August 7, 2018
    Assignee: DSM&T Company, Inc.
    Inventor: Sergio Corona
  • Patent number: D837741
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: January 8, 2019
    Assignee: DSM&T Company, Inc.
    Inventor: Sergio Corona
  • Patent number: D838247
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: January 15, 2019
    Assignee: DSM&T Company, Inc.
    Inventor: Sergio Corona
  • Patent number: D859320
    Type: Grant
    Filed: February 24, 2018
    Date of Patent: September 10, 2019
    Assignee: DSM&T Company, Inc.
    Inventor: Sergio Corona
  • Patent number: D896182
    Type: Grant
    Filed: February 24, 2018
    Date of Patent: September 15, 2020
    Assignee: DSM&T Company, Inc.
    Inventor: Sergio Corona