Patents Assigned to Universal Security Instruments, Inc.
  • Patent number: 8766807
    Abstract: A microprocessor controlled hazardous condition detection system with volatile and non-volatile memory containing a sensor package and an alarm element associated with the sensor package through a microprocessor, wherein a clean air value is loaded into the volatile memory; where the microprocessor receives periodic readings of predetermined environmental conditions from the sensor package, stores the periodic readings in the volatile memory, calculates an average of a plurality of said periodic readings and generates a new clean air value by shifting the clear air value loaded into said volatile memory by a differential between the calculated average environmental reading and the established clean air value and generates an alarm if the difference exceeds an established threshold.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: July 1, 2014
    Assignee: Universal Security Instruments, Inc.
    Inventor: Eric V. Gonzales
  • Patent number: 8395501
    Abstract: A hazardous condition detection system with a sensor package employing a reduced resource microprocessor capable of dynamic alarm sensitivity adjustment having volatile and non-volatile memory which receives periodic raw sensor readings from the sensor package and preprocesses each received periodic raw sensor reading by employing at least three distinctive filtering constants which are compared to alarm thresholds stored in memory to generate an alarm condition signal when ionization levels in the ambient environment exceed stored thresholds.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: March 12, 2013
    Assignee: Universal Security Instruments, Inc.
    Inventor: Eric V. Gonzales
  • Patent number: 8284065
    Abstract: A microprocessor controlled hazardous condition detection system with volatile and non-volatile memory containing a sensor package, the sensor package containing sensors exposed to the ambient environment, and an alarm element coupled to the sensor package through a microprocessor where the microprocessor includes a memory storage device containing a plurality of alarm thresholds stored therein, each of the plurality of alarm thresholds being associated with a predetermined set of levels in the ambient environment where the microprocessor receives periodic readings from the sensor package, the microprocessor conditions the received readings by removing a selected amount of noise and attenuation therefrom, selects and employs an optimized alarm threshold from a plurality of stored alarm thresholds and activates the alarm element upon detecting a threshold levels in the ambient environment greater than the selected alarm threshold.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: October 9, 2012
    Assignee: Universal Security Instruments, Inc.
    Inventor: Eric Gonzales
  • Patent number: 7893825
    Abstract: An embodiment of the invention provides a method including detecting a select hazardous condition by at least one triggering alarm unit of a plurality of interconnected hazardous condition alarm units. An actuatable latch in the triggering alarm unit is switched from an unlatched state to a latched state. An audible alert is generated in all of the interconnected alarm units. A test switch is actuated to identify the triggering alarm unit. Actuating the test switch disables the audible alert in each alarm unit having an actuatable latch in the unlatched state. A reset switch is actuated in only one of the alarm units to reset the actuatable latch in each of the alarm units to the unlatched state.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: February 22, 2011
    Assignee: Universal Security Instruments, Inc.
    Inventor: Eric V. Gonzales
  • Patent number: 4631527
    Abstract: A transmit-receive burglar alarm system provides for code changing so that the user may readily change the transmitted code to which the system will respond. The transmitter is battery powered, and the transmission circuits are disabled except during transmission intervals to conserve battery life, the transmitter transmitting a weak battery signal when the battery voltage falls below a prescribed level, the receiver providing a distinctive signal in response thereto. The transmitter may select one of two channels at the receiver depending upon the desired response and may also select a delayed or immediate response if the receiver is in the delay mode. The home or base station includes a receiver and a microprocessor to determine first if the transmitted code is proper to respond to and then on which of two channels the response is to be indicated; the channels determining the format of the audio signal to be generated both on internal and external audio devices.
    Type: Grant
    Filed: November 25, 1980
    Date of Patent: December 23, 1986
    Assignee: Universal Security Instruments, Inc.
    Inventors: Kenneth I. De Witt, Michael L. Kovens
  • Patent number: D257354
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: October 14, 1980
    Assignee: Universal Security Instruments, Inc.
    Inventor: Darrell D. Fish
  • Patent number: D265310
    Type: Grant
    Filed: July 24, 1979
    Date of Patent: July 6, 1982
    Assignee: Universal Security Instruments, Inc.
    Inventor: Michael L. Kovens
  • Patent number: D271002
    Type: Grant
    Filed: December 3, 1980
    Date of Patent: October 18, 1983
    Assignee: Universal Security Instruments, Inc.
    Inventor: Darrell D. Fish
  • Patent number: D472175
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: March 25, 2003
    Assignee: Universal Security Instruments, Inc
    Inventor: Jeffery Welsh
  • Patent number: D306409
    Type: Grant
    Filed: December 8, 1986
    Date of Patent: March 6, 1990
    Assignee: Universal Security Instruments, Inc.
    Inventor: Darrell Fish
  • Patent number: D627670
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: November 23, 2010
    Assignee: Universal Security Instruments Inc.
    Inventor: Eric V. Gonzales
  • Patent number: D627671
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: November 23, 2010
    Assignee: Universal Security Instruments, Inc.
    Inventor: Eric V. Gonzales
  • Patent number: D364108
    Type: Grant
    Filed: January 30, 1995
    Date of Patent: November 14, 1995
    Assignee: Universal Security Instruments, Inc.
    Inventor: Kenneth I. DeWitt
  • Patent number: D367622
    Type: Grant
    Filed: January 30, 1995
    Date of Patent: March 5, 1996
    Assignee: Universal Security Instruments, Inc.
    Inventor: Kenneth I. DeWitt
  • Patent number: D367623
    Type: Grant
    Filed: January 30, 1995
    Date of Patent: March 5, 1996
    Assignee: Universal Security Instruments, Inc.
    Inventor: Kenneth I. DeWitt
  • Patent number: D375097
    Type: Grant
    Filed: August 14, 1995
    Date of Patent: October 29, 1996
    Assignee: Universal Security Instruments, Inc.
    Inventor: Michael L. Kovens
  • Patent number: D376117
    Type: Grant
    Filed: August 14, 1995
    Date of Patent: December 3, 1996
    Assignee: Universal Security Instruments, Inc.
    Inventor: Michael L. Kovens
  • Patent number: D653566
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: February 7, 2012
    Assignee: Universal Security Instruments, Inc.
    Inventors: Cynthia A. Gonzales, Eric V. Gonzales
  • Patent number: D653574
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: February 7, 2012
    Assignee: Universal Security Instruments, Inc.
    Inventor: Eric V. Gonzales
  • Patent number: D422521
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: April 11, 2000
    Assignee: Universal Security Instruments, Inc.
    Inventor: James Morrow