Abstract: A telephone using conventional telephone mechanical and electrical components mounted within a telephone housing, typically mounted on a wall, with the earpiece and mouthpiece mounted within the telephone. To operate, the user pushes an on/off switch, dials his number, and then places his ear next to the fixed earpiece. The telephone is designed for use in prisons so inmates within a prison can not hang themselves with a handset cord or break a handset and handset cord off for use as a weapon. The telephone is also designed for use in any high crime or remote area to reduce the potential for vandalism. The telephone design reduces the cost of maintenance by eliminating the need to fix and replace a telephone handset.

Abstract: A refrigerated intercooler for an air conditioning, refrigeration or similar cooling system. The intercooler provides a thermal interface between colder refrigerant gas leaving the air conditioning system's evaporator and the hotter refrigerant liquid leaving the system's condenser. The thermal interface occurs between the gas in the accumulator portion of the intercooler and the liquid in an interior container of the intercooler. In the preferred embodiment, the interior container is coiled tubing, to promote better heat exchange. The system's oil/refrigerant emulsion is metered and returned from the intercooler to the compressor through an oil return line that is external to the accumulator portion of the intercooler.

Abstract: A phosphorescent ring for providing a visual reference cue towards a doorknob or similar opening hardware. The ring may be attached around the doorknob with adhesive, or it may be hung on the doorknob. In the preferred embodiment, the ring is hung on the doorknob, allowing the ring to be used on a motel room door or other location where the room occupant is unfamiliar with the room layout and exit door location.