Abstract: A vehicle wash system is set forth that comprises a main carriage that is movable along a length of a vehicle that is to be washed and a carriage drive system disposed to move the main carriage along the length of the vehicle. A plurality of nozzles are disposed for co-movement with the main carriage to dispense fluids used in the washing of the vehicle. A sidearm drive system is disposed for co-movement with the main carriage. The sidearm drive system rotates a sidearm cloth in a reciprocating manner for contact with a side portion of the vehicle. To reduce the footprint needed to operate the wash system, the sidearm cloth may be rotated along an arc that is less than 360°. An overhead cloth drive system also may be disposed for co-movement with the main carriage. The overhead cloth drive system may move an overhead cloth in a reciprocating manner for contact with an upper portion of the vehicle.

Abstract: A circuit and method measures the voltage at the main motor winding (1) and detects the points in the electromagnetic wave cycle at which this voltage “crosses” zero. The method and circuit also measures the voltage at the auxiliary motor winding (2). The voltages measured in the main winding (1) and in the auxiliary winding (2) are compared by the circuit (13) as a means for starting and restarting the auxiliary winding (2). The circuit and method also detects the points in the electromagnetic wave cycle where the current in the auxiliary winding “crosses” zero and compares the phase of these current zero crossing points with a window pulse (11) that is generated when the main voltage crosses zero. When the zero current crossing points fall within the window pulse, the auxiliary winding (2) is up to proper operating speed and the auxiliary winding (2) is disconnected by the starting circuit.

Abstract: A molded “shear pin” or spike retainer is used with an assembly of tire-puncturing and tire-deflating spikes. The retainer is a solid U-shaped device having at least two straight portions that are connected together by bends. A first retainer portion is dimensioned to be slidingly insertable through a bore that is defined within the base of the spike. The first retainer portion is also dimensioned to be slidingly insertable through opposing apertures that are defined within a spike holder. When the opposing spike holder apertures are aligned with the spike aperture, the spike is spaced above a floor that forms part of a cavity within the spike holder. The first retainer portion holds the spike firmly within the spike holder. In this position, the spike is axially and downwardly movable relative to the spike holder when the first retainer portion is sheared by a downward force exerted on the spike.

Abstract: An electrical box locating device is formed from a single piece of metallic material. The locating device has a forwardly extending fastening portion which is functionally adapted to be received within a threaded receptacle mounting hole of a typical electrical box. Rearwardly of the fastening portion is a drive portion which allows the device to be driven into the mounting hole and securely held within it. Rearwardly of the drive portion of the device is a drywall penetrating portion which extends outwardly of the electrical box and which is functionally adapted to penetrate and extend through a sheet of drywall when such is placed over the electrical box. The fastening portion, the drive portion and the penetrating portion of the device are made from a single piece of material and integrally formed in the preferred embodiment of the invention.

Abstract: A fire suppression method and apparatus has a sprinkler head support bracket which is installable immediately above a ceiling tile. The support bracket is configured with a plurality of openings such that multiple locations for the sprinkler head may be used and the exact "center of tile" installation of the sprinkler head can be accomplished with a wide variety of suspended ceiling assemblies and sprinkler heads. The support bracket rests on grid support members and arches over the ceiling tile. Hold down clips are provided to maintain the bracket in position relative to the grid support members. A pipe clamp is provided which is insertable within the bracket to retain a drop nipple within it. The drop nipple is adjustable relative to the horizontal to move it upwardly or downwardly relative to the ceiling tile. In this fashion, the vertical location of the sprinkler head can be adjusted depending upon the elevation of the ceiling tiles used and the style of sprinkler head used.