Abstract: Disclosed is a vehicle identifier in the form of an antenna ball attachable and detachable from the antenna of a vehicle and including an identification mark thereon for identification of a specific vehicle from amongst a plurality of vehicles. The vehicle identifier includes two separate sections secured together about an antenna by engagement of protrusions extending from one section with apertures provided in the other section, allowing for simple attachment and detachment of the vehicle identifier to a vehicle.

Abstract: A fuse holder assembly for a cylindrical fuse of the type including a fusible link retained in an insulative sleeve. The assembly includes first and second insulated conductors, first and second metallic terminal elements for attachment to the end of the conductors and including a receiving end for holding one end of the fuse. The assembly further includes first and second sleeves of resilient insulative material for receiving corresponding conductors in an interference fit with each sleeve being slidable along the outside surface of the conductor. A first cap of relatively rigid insulative material includes a barrel defining a cavity for receiving the first terminal element with the cap having a facing end portion and a remote end portion. The cap includes an intermediate internal ledge positioned between the end portions for abutting the fuse-receiving end of the terminal element, and a remote internal ledge positioned at the remote end portion of the cap for abutting a sleeve.

Abstract: A water resistant fuse holder for receiving a fuse of the plastic body type. The fuse holder includes a fuse body including a housing for retaining a pair of terminal elements for receiving the terminal legs of the fuse. The housing has an upper wall and a mouth extending from the upper wall and defining a cavity opening onto the leg-receiving ends of the terminal elements. The mouth terminates in an engagement surface and the mouth further includes a peripheral outer rim located adjacent the engagement surface. The fuse holder also includes a cap of resilient insulative material including a side wall defining a recess for receiving the mouth and the fuse body. The side wall has an internal ledge encompassing the recess and having an abutment surface for entering into substantially full surface engagement with the engagement surface of the mouth. The side wall further has an internal rib encompassing the recess and positioned between the ledge and the base surface of the cap.

Abstract: An anticipatory flammable gas detection system is provided for quickly determining whether the rise rate of gas concentration will approach a potentially hazardous level. The system includes a detector for determining the rise rate of the gas concentration and a comparator for determining whether the rise rate exceeds a potentially hazardous level. An integrator or multivibrator is provided for determining how long the rise rate exceeds a predetermined value. If the rise rate exceeds the predetermined hazardous rate of rise for more than a predetermined period of time, an alarm signal is generated. Prevention of false alarms is accomplished by providing another comparator which determines whether the magnitude of gas concentration exceeds a preselected percentage of the lower flammable limit. Should the magnitude be less than the preselected percentage, the alarm signal will not be generated.

Abstract: An optical transmitter-receiver system is provided which is particularly adapted for use in vehicle guidance, obstacle detection and the like. The system includes a laser diode transmitter including a modulation circuit comprising a bank of transistors that are individually triggered into the alvalanche mode so that energy stored by a capacitive storage network is discharged into the diode. In accordance with a first receiver embodiment, which includes a range flip-flop controlled by a threshold comparator, an analog voltage proportional to range is produced. In a second receiver embodiment, the receiver responds to targets within a prescribed zone determined by an analog gated amplifier.