Abstract: A vehicle immobilizing device adapted for removable interconnection to a vehicle wheel assembly for temporarily immobilizing the vehicle. The vehicle immobilizing device utilizes an outer arm, an inner arm, an engagement dome, a self-positioning tire stop, and a securing mechanism which in combination provides engagement to the vehicle wheel assembly to prevent unauthorized removal.

Abstract: A vehicle immobilizing device adapted for removable interconnection to a vehicle wheel assembly for temporarily immobilizing the vehicle. The vehicle immobilizing device utilizes an outer arm, an inner arm, an engagement dome, and a securing mechanism which in combination provides engagement to the vehicle wheel assembly in at least four distinct locations to prevent unauthorized removal.

Abstract: An easily portable ventilating heater to supply either ambient fresh air or warm fresh air to utility workers while working in an underground utility installation. The ventilating heater comprises a blower unit and a heater unit. The blower unit can be used and operated without the heater being in operation. On the other hand, the heater cannot operate unless the blower unit is in operation. The ventilating heater has seveal safety features so that the heater automatically shuts down if the heater exceeds a pre-set temperature of about 200.degree. F., the inlet air flow is interrupted or the power or gas supply is interrupted. The ventilating heater automatically restarts once the heater temperature goes below the pre-set temperature and there is no interruption of air or gas flow or power. The heater uses liquid propane gas and the electrical system can be A.C. or D.C.

Abstract: An electric heating device for warming liquid propane gas (LPG) bottles includes a flexible heat resistant belt adapted to be secured around the outer peripheral surface of the bottle. The belt has embedded therein an electric resistance heating element with end portions of the belt being heating element-free. A dual safety system is provided on the belt for controlling the heating element and includes a low temperature (60.degree.-80.degree. F.) thermostat secured to a heating element-free end portion of the belt so as to be responsive to the temperature of the bottle and a high temperature (180.degree.-200.degree. F.) thermally-responsive device, such as a thermostat, fuse or circuit breaker located, on the portion of the belt in which the heating element is embedded, for controlling maximum temperature of the belt.

Abstract: This invention relates to a cable anchoring device in the form of a stamped metal blade-like part having a generally straight lower section and a slightly curved upper section terminating at its upper end in a point. The curved section of the blade contains an elongate tool-receiving aperture, the lower end of which is shaped to accept a slotted driving tool while its upper end engages the shank of the tool and maintains the latter in substantial axial alignment with the straight section. An integrally-formed dimple with a cable-receiving hole in it is located on the outside of the blade just underneath the lower edge of its tool-receiving aperture through which the anchor cable passes onto the inside thereof. Immediately underneath the dimple, but on the inside of the blade is an integrally-formed downturned ear beneath which the cable is passed preparatory to being crimped in place.