Abstract: A bird cage heater includes a housing divided by a partition into an upper lamp compartment and a closed lower control compartment. The upper compartment has reflective internal walls and an open front. An electric light bulb is mounted in the upper compartment. Fastening devices are provided for detachably mounting the housing entirely on the exterior of bird cage with the open front wall facing the interior of the cage so that heat and light produced by the light bulb are reflected through the open front wall into the cage. A thermostat responsive to the temperature of the lower closed compartment controls energization of the light bulb. An indicator lamp is provided to provide indication of the operability of the light bulb filament. A colored light bulb may be used thereby providing a decorative effect in addition to heat.

Abstract: A shock absorbing mobile adapter is provided with four members in spaced apart relationship and six shock absorbing arms connecting each member to the other three members and forming an irregular tetrahedron.