Abstract: A deadbolt latch assembly having an interlocking front faceplate and a collar which capture a locking tab of the deadbolt housing permitting the rapid field assembly of a selected front face or trim plate by simply engaging intermeshing fingers by rotation of the collar to secure the assembly which thereafter may be driven into an aperture prepared for a door lock.

Abstract: A venting piston ring is provided with ports extending partly through the ring outer surface which cooperate with the end edge of a cylinder wall to vent the cylinder volume while intermediate surface lands between ports maintain ring to cylinder contact and alignment.

Abstract: A pneumatic connector between a hoist and a hoist pendant is provided with tapered holes and ferrules to progressively compress and retain interconnecting pneumatic tubing and further provides for assembly of a protective sheath. The connector further provides limited free rotation and a quick disconnect face seal accomplished by a single rotating threaded sleeve.

Abstract: A valve handle is provided with a hand rotated valve skirt containing a notch which in one position permits valve operation when the notch is aligned with the valve and in a second spring biased position the skirt interferes with the valve body to prevent accidental operation, the skirt further providing a dust cover for the valve operating mechanism.

Abstract: Insulation is provided in the form of wall insulation, piston or diaphragm insulation and/or piston rod and/or diaphragm washer insulation to increase the temperature in the working air chamber of an air motor of the piston or diaphragm type to reduce the formation of ice on exhaust.

Abstract: An air motor for hoists and the like utilizes opposed pistons interconnected by a rigid yoke having a single pivot link for each piston pair connected to the crank by means of standard press fit bearings which maintain yoke and piston alignment with the crank in oil free operation.

Abstract: A separate thumb accessible pushbutton operated circuit revises the power operated tube nut wrench at a reduced speed to intercept a home stop wherein after the wrench is automatically shut off on the sensing of current rise in the motor on stall to avoid over stress and unnecessary heat buildup.

Abstract: A modular compact push button pendant for a hoist or winch is assembled of modular component parts along common passageways selectively ported by gaskets, seal plates, and spool valve stems directly operated by push buttons assembled in a straight line path to permit ready change and selection of function options and orientation.

Abstract: An electric driven power tool motor is provided with a conical air inducer for improving the motor air cooling supply from a motor driven impeller.

Abstract: An actuator for a brake band wherein a unique cam and compression yoke arrangement permits location of the cam actuator along an axis parallel to the winch axis thereby permitting its location within the protective zone of the winch and the elimination of exposed spring operated brake actuating arrangements.

Abstract: A four way control valve of the type used to control air motors or the like utilizing opposed poppet valve in place of spool valves to reduce tolerance requirements and improve function in standard, balanced and pilot operated versions based on one body.

Abstract: A fastener tensioning method wherein pre-tensioning fastener tightening history acquired during the tightening of the fastener prior to the point of proportional tensioning of the fastener is utilized to modify the tightening cycle occurring after the point of proportional fastener tensioning to reduce the resultant tension scatter while using a tightening perimeter such as torque as an indicator of fastener tension.

Abstract: Provision is made for an air control valve to bypass the ice forming exhaust of a reciprocating pressure activation chamber in a reciprocating double diaphragm pump utilizing the supply pressure to close a check valve in line between the valve and the chamber which is then opened to exhaust by exhaust fluid flow from the chamber.

Abstract: A cylindrical adapter is fitted to the end of a standard vacuum hose having a sliding collar disposed thereon to selectively engage the adapter with a disposable vacuum bag in crimping engagement between the adapter on the collar so as to secure the disposable bag on the adapter and thereafter permit a durable vacuum slidingly engaged on the vacuum hose to be deployed about the disposable bag.

Abstract: A method of utilizing a non-contact velocity sensor is disclosed which involves a subpoint set delay and reset feature as a means for minimizing problems with zero drift that would cause inaccuracies in tightening procedures.

Abstract: A vibration dampened percussive tool has a handle assembly and a cover surrounding a barrel and piston assembly which are caused to oscillate relatively to the handle assembly. The barrel assembly receives a tool retainer and a trigger controls primary air supply. To reduce air consumption when the tool is not actually applied to a workpiece and thereby to reduce exposure of the operator's hand/arm to vibration, an air metering device is provided, which includes a tube slidably mounted in a bush and having a bleed hole in an end of the tube which enters the bush. In one position of the tube within the bush, apertures in the tube are sealed to allow the tool idle and in another position of the tube the apertures are exposed. The tube connects the air line with the piston assembly and moves within the bush responsive to pressure applied by the actual tool on the workpiece.