Abstract: For conveying and for dispensing of degassed work liquid(s), an apparatus and a method for precision conveying and/or ratioing and/or mixing and/or dispensing of work liquids are presented using a pump of a positive displacement, high precision, piston/cylinder constant flush type with piston smaller than the chamber. The piston is programmably advanced along a stroke with tiny repeatable adjustable steps. Infinitely adjustable precision ratioing and/or programmable mixing of degassed materials may be provided downstream of the pump outlets when degassed liquids are presented to the inlets of two such pumps. The mixing occurs in a mixing chamber, the output of which is then used. The vacuum degassed work liquids may be dispensed in a system which features the creation and maintenance of a positive absolute pressure on the work liquids throughout, from the point of exiting a first degassing chamber to an end use at a dispensing outlet.

Abstract: Presented is a method and apparatus for precision control of work fluids in a squeezable tube that has no surge of work material during the shut off closing of the tube which is accomplished by a compensator moving simultaneously and oppositely to the shut off member movement, each of the compensator and the shut off member having different stroke lengths and tube engagable surface areas which effectively keep the internal volume of the tube the same. The method and apparatus are useful standing alone, in coordination with precision positive displacement pumping under computer control which is also presented, and as a part of sequential or simultaneous movement of a valve/pump dispensing head coordinated with a stationary or movable work piece to provide exceedingly fine control dispensing. Suckback between dispensing shots is coordinated with shut off and movements of inlet, outlet and dispensing members to afford operator programmable dispensing with precision and without drip.

Abstract: Presented is a method and apparatus for precision control of work fluids in a squeezable tube that has no surge of work material during the shut off closing of the tube which is accomplished by a compensator moving simultaneously and oppositely to the shut off member movement, each of the compensator and the shut off member having different stroke lengths and tube engageable surface areas which effectively keep the internal volume of the tube the same. The method and apparatus are useful standing alone, in coordination with precision positive displacement pumping under computer control which is also presented, and as a part of sequential or simultaneous movement of a valve/pump dispensing head coordinated with a stationary or movable work piece to provide exceedingly fine control dispensing. Suckback between dispensing shots is coordinated with shut off and movements of inlet, outlet and dispensing members to afford operator programmable dispensing with precision and without drip.

Abstract: A pump/dispenser, ratioing/mixer dispenser apparatus and a method and apparatus for precision vacuum degassed dispensing of work liquids are presented. The pump/dispenser is a positive displacement high precision piston/cylinder constant flush type with a piston smaller than the chamber. The piston is advanced along its stroke in tiny repeatable adjustably programmable steps, the infinitely adjustable precision ratioing programmable mixing being provided when two such pumps are used. The vacuum degassed work liquids dispensing system features the creation and maintenance of a positive absolute pressure on the work liquid(s) when exiting the degassing chamber(s) to the dispensing outlet(s) whether moved along the flow path through the precision dispensing pump(s) or other types of pump(s). Available software and adjustable programmable precision hardware of the system may be provided for use in a widely available personal computer. Further degassing is provided by dispensing in a vacuum.

Abstract: Presented is a method and apparatus for precision control of work fluids in a squeezable tube that has no surge of work material during the shut off closing of the tube which is accomplished by a compensator moving simultaneously and oppositely to the shut off member movement, each of the compensator and the shut off member having different stroke lengths and tube engagable surface areas which effectively keep the internal volume of the tube the same. The method and apparatus are useful standing alone, in coordination with precision positive displacement pumping under computer control which is also presented, and as a part of sequential or simultaneous movement of a valve/pump dispensing head coordinated with a stationary or movable work piece to provide exceedingly fine control dispensing. Suckback between dispensing shots is coordinated with shut off and movements of inlet, outlet and dispensing members to afford operator programmable dispensing with precision and without drip.

Abstract: Presented is a slide roller apparatus of elegant simplicity, high precision/cost ratio and few parts where the car/track/rollers are relatively movable and the only needed parts (excepting for attachment means). The car is unitary without end caps for the roller groove, the roller groove being machined or otherwise formed into the car with great precision. The ends of the rollers have a sliding engagement with a rail track surface. The tracks and cars may be made of high precision extruded aluminum hard coated and impregnated with a high lubricity material. The rollers preferably are softer than the tracks and may be made of plastic material. The slide roller apparatus has far ranging applications from sail boats to machine tools.

Abstract: A precision switch and a switch blade/contact formed from uniform thickness sheet stock bent into U-shaped form wherein the edge surfaces after bending become the movable contacts of the high performance rugged tiny subminiature switch. The switch per se utilizes a configuration of pivotal rigid legs of the U-shaped blade/contact arranged to be spaced apart to maximum extent to allow a large diameter long coil spring located between the legs to be used for giving the blade/contact means precision high contact force operating characteristics which will withstand high G forces and will carry relatively large currents given the absolute size of the switch.

Abstract: A pump/dispenser, ratioing/mixer dispenser apparatus and a method and apparatus for precision vacuum degassed dispensing of work liquids are presented. The pump/dispenser is a positive displacement high precision piston/cylinder constant flush type with piston smaller than chamber. The piston is advanced along its stroke in tiny repeatable adjustably programmable steps, the infinitely adjustable precision ratioing programmable mixing being provided when two such pumps are used. The vacuum degassed work liquids dispensing system features the creation and maintenance of a positive absolute pressure on the work liquid(s) when exiting the degassing chamber(s) to the dispensing outlet(s) whether moved along the flow path through the precision dispensing pump(s) or other types of pump(s). Available softwear and adjustable programmable precision hardwear of the system may be provided by a widely available personal computer. Further degassing is provided by dispensing in a vacuum.

Abstract: A precision subminiature, snap action switch and an externally actuated, heavy duty, spring loaded self-return type operator therefor are enclosed within an hermetically sealed housing. The operator employs a switch actuating cam having shoulders cooperable with shoulders on the interior of the housing to define the limits of cam movement, said cam also having a shoulder cooperable with a shoulder on a switch lever to trip the switch upon movement of the externally actuated operator shaft a precise amount away from its at rest position. A connector/switch subassembly sealingly closes a housing opening, provides a rigid, precision mounting for the switch, and also provides external electrical connections for the switch.

Abstract: A multiposition precision joystick type control device having a transducer mode in which an actuator button is movable in any lateral direction away from a neutral position to cause flexure of flexible bar mechanism along one or both of two orthogonally related axes, there being a set of transducers for sensing such flexure and providing a coordinate-related signal to apparatus to be controlled, the control device having a depress mode in which the actuator button is axially depressed for actuation of a switch and thereby providing an alternate controlling function. Overload mechanism including a spring loaded articulated connection between the actuator button and the flexible bar mechanism limits the degree of flexure which can be imparted to the flexible bar mechanism by movement of the actuator button in any lateral direction from its neutral position to prevent damage to the sets of transducers.

Abstract: An improved bumper two component end cap assembly for pneumatic tube system carriers is disclosed. One component is a wheel-like durable tough relatively hard moldable plastic member which serves the multiple functions of: (a) providing an outer wear surface for engagement with pneumatic tube side walls and control levers; (b) providing a configuration for confining and stabilizing the second relatively softer shock absorbing component; and (c) providing at the hub area relatively strong rigid precise surfaces for detachable rigid fastening connection to the end surfaces of the carrier per se. The second component interacts with the first component as a resilient shock absorber interposed between the first component and the end of the carrier. The second component also has portions extending axially for resilient engagement directly with the stop surfaces at end stations of the pneumatic tube systems.