Abstract: An electronic lock box contains a mechanical structure that allows the lock box to work in several different mechanical states. A first state is a key compartment door unlocking state, while a second state is a shackle release state. A third state is a “soft lock” state, which allows the key compartment door to be closed, or the shackle to be re-installed, and once this has occurred, the door will not fall open, and the shackle will not fall out. A fourth state is a “hard lock” state in which the key compartment door and the shackle are not easily disturbed by vibration or intentional impact by a would-be thief, who is attempting to unlawfully open the door or remove the shackle.

Abstract: An electronic lock box contains a mechanical structure that allows the lock box to work in several different mechanical states. A first state is a key compartment door unlocking state, while a second state is a shackle release state. A third state is a “soft lock” state, which allows the key compartment door to be closed, or the shackle to be re-installed, and once this has occurred, the door will not fall open, and the shackle will not fall out. A fourth state is a “hard lock” state in which the key compartment door and the shackle are not easily disturbed by vibration or intentional impact by a would-be thief, who is attempting to unlawfully open the door or remove the shackle.

Abstract: A lens assembly adapted to be connected to a CRT and affixed to mounting structure in a projection television cabinet. The lens assembly includes a tubular lens mount having a longitudinal axis and at least a first optical lens element mounted along the longitudinal axis. A tubular focus mount extends along the longitudinal axis and fastening and locking structure connects the lens mount to the focus mount after a focus mount position is obtained. A CRT coupler is formed integrally with the focus mount and includes structure for securing a CRT and for securing the coupler to the mounting structure within the television cabinet. A second optical lens element is mounted to the CRT coupler. A flexible bladder may be used to contain coolant fluid between the CRT and the coupler.

Abstract: A fluid pressure responsive electrical switch (10) is shown having a generally flat base (12) formed with an annular recess (12e) which receives therein the distal free end of a cup-shaped resilient membrane (16) captured by the distal free end of a tubular sidewall (14a) of housing (14). Membrane (16) defines a dampener chamber (16d) having a constricting orifice (12f) to a fluid pressure receiving portion (12d) of the switch. The top wall (16a) of the membrane is adapted to transfer fluid pressure to a snap-acting disc (18) which, when actuated by a selected high pressure build-up within the dampener chamber, will in turn engage the bight (22f) of movable contact arm (22c) and move the movable contact arm to separate movable contact (26) from stationary contact (24) mounted within a switch chamber (14d) of housing (14).