Patents by Inventor D. A. Terry

D. A. Terry 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: 5344077
    Abstract: An improved apparatus for delivering compressed particulate solid fire fighting agent includes a pneumatic system for entraining particulate fire fighting agent in a high pressure gas stream, compressing the agent into quasi-discrete quasi-solid slugs, and delivering the compressed slugs in a constant stream at a high rate of speed to the center of the fire being fought from a safe distance. The system includes a high pressure gas supply, a pressure regulator, a pressure compensator, a pressure sink, an agent storage vessel, and a multi-stage delivery nozzle including a pressure imbalance mechanism. Particulate agent is sequentially compressed in the multiple nozzle stages by virtue of a pulsating gas supply effect, and ejected in a constant stream of solid slugs at speeds near or above Mach 1.
    Type: Grant
    Filed: June 24, 1993
    Date of Patent: September 6, 1994
    Inventors: Roy D. A. Terry, Roger G. Terry
  • Patent number: 5242023
    Abstract: An improved method and apparatus for delivering compressed particulate solid fire fighting agent includes a pneumatic system for entraining particulate fire fighting agent in a high pressure gas stream, compressing the agent into quasi-discrete quasi-solid slugs, and delivering the compressed slugs in a constant stream at a high rate of speed to the center of the fire being fought from a safe distance. The system includes a high pressure gas supply, a pressure regulator, a pressure compensator, a pressure sink, an agent storage vessel, and a multi-stage delivery nozzle including a pressure imbalance mechanism. Particulate agent is sequentially compressed in the multiple nozzle stages by virtue of a pulsating gas supply effect, and ejected in a constant stream of solid slugs at speeds near or above Mach 1.
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: September 7, 1993
    Inventors: Roy D. A. Terry, Roger G. Terry
  • Patent number: 4381744
    Abstract: A fluid temperature monitor coupled into the engine coolant fluid circuit of an internal combustion engine includes a thermostat which is responsive to overheating of the fluid to operate a plunger so as to actuate a first switch upon overheating of the fluid to sound a warning alarm and a second switch to turn off the engine.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: May 3, 1983
    Assignee: D. A. Terry
    Inventor: D. A. Terry
  • Patent number: 4313516
    Abstract: A snow assembly for conversion, for snow operation, of a normally road operable vehicle includes ski and track assemblies which are adapted to be mounted on the vehicle in place of the tires normally mounted thereon for road operation. The ski assembly includes a raise bracket which is mounted to a brake housing of the vehicle by the bolts which normally mount the tire to the brake housing and a ski which is mounted at the bottom of the raise bracket such that the ski is rotatable relative to the raise bracket to vary the angle between them. The raise bracket is preferably pivotally linked to the vehicle to stabilize the bracket in the direction of movement of the vehicle. Pneumatic tires are also preferably positioned on the ski assembly to enable operation of the vehicle both in snow and on open road when the snow assembly is installed on the vehicle.
    Type: Grant
    Filed: May 4, 1979
    Date of Patent: February 2, 1982
    Inventor: D. A. Terry