Abstract: A portable bar is provided which attaches and locks to a vehicle steering wheel, preferably attaching to and extending tangentially from the top of the rim, and extends to where it is fully visible from outside of the vehicle. In the preferred embodiment, the bar is a hollow tube in which a pair of clamping members, one being a fixed section of the tube and the other part hinged thereto, surrounds and is locked about the steering wheel rim. A cavity in the tube protectively encloses, along with anti-saw-through bars and/or mace, alarm circuitry and the batteries therefor. Light and sound annunciators on the bar and a LED armed-condition indicator, which preferably flashes only when dark, are provided. A panic button on the outside of the tube manually triggers the alarm. Push button selectors enclosed in the tube are accessible only when the device is unlocked to arm and disarm the alarm or function automatically by contact with the rim upon locking and unlocking thereto.

Abstract: A parking stall monitor located adjacent a restricted use parking stall detects vehicle presence in the parking stall and activates an alarm to provide a warning in response thereto. A disarm/arm circuit associated with the monitor generates a coded input in response to receipt of an identification signal from an authorized user, thereby to disarm either the detector or the alarm to enable the vehicle of the authorized user to occupy the parking stall without a warning being provided. Subsequently, when the authorized user is ready to leave the parking stall, receipt by the disarm/arm circuit of another identification signal, or removal of the initial identification signal, causes the monitor to rearm. The identification signal may be produced nonautomatically or automatically, either actively or passively, and the capability of originating this signal serves to distinguish a selected group of authorized users from those not permitted to use the stall.

Abstract: A flexible automobile bra securable to the exterior surface of an automobile is constructed of at least one panel which absorbs mechanical impact, provides mechanical stabilization to inhibit flapping under windy or high-speed conditions, faciltates water drainage, and limits temperature rise of covered portions of the vehicle. The bra comprises at least one panel having a first, non-abrasive layer; a second thermal radiation reflective layer which is also preferably a thermally conductive, radar reflective metal; a third layer of elastomeric reticulated foam, which can be a radar-absorbing type; and a fourth layer of water impervious material which is preferably water vapor permeable. In an alternative embodiment, the reflective second layer is eliminated.

Abstract: A portable bar attaches tangentially and locks to a vehicle steering wheel, preferably at the uppermost section of the rim, and extends to where it is fully visible from outside of the vehicle. The bar is a holllow tube in which a pair of clamping members, one being a fixed section of the tube and the other part hinged thereto, surrounds and is locked about the steering wheel rim. A cavity in the tube protectively encloses, along with anti-saw-through bars, alarm circuitry and the batteries therefor. Light and sound annunciators on the bar and a flashing LED armed-condition indicator are provided. A panic button on the outside of the tube to manually trigger the alarm, and push button selectors enclosed in the tube and accessible only when the device is unlocked to arm and disarm the alarm and to activate the light to serve as a flashlight or emergency flasher.

Abstract: A parking stall monitor located adjacent a restricted use parking stall periodically transmits a burst of ultrasonic pulses into the parking stall during a first time interval and then periodically detects the reflection of the ultrasonic pulses off of a vehicle in the parking stall during a second time interval, the first and second time intervals being staggered in time. Upon detecting vehicle presence in the stall, the monitor provides an audible warning to indicate that use of the stall is restricted. Before and after authorized use of the stall, the monitor can be selectively disarmed and then rearmed, respectively, by a signal transmitted from a portable transmitter within the authorized vehicle.