Abstract: Exercising apparatus of a type generally simulating a walking or crawling motion. The apparatus has a vertical support mast, right hand and left hand operated levers journaled to the mast, and left and right foot treadles journaled to the mast. The right hand operated lever is connected to the right foot treadle by one connecting rod, and the left hand operated lever is connected to the left foot treadle by a second connecting rod. The connecting rods cause their corresponding hand and foot to approach one another then diverge in repeating cycles. A link rod connects the right foot treadle to the left hand operated lever. Right and left treadles and levers therefore undergo similar motions, but are offset from one another by half a cycle. For example, the right hand and foot converge while the left hand and foot diverge.

Abstract: An improved wringer device is provided for squeezing water from a cloth or chamois when fed between a pair of adjacent rollers. Each roller is made from thermoformed plastic, or molded elastomeric material with an outer surface defining a plurality of axially alligned curvilinear hill and valley surfaces. The hill surface of one roller meshes with a valley surface of the adjacent roller to assist in feeding the cloth through the rollers and to maximize efficiency by minimizing required cranking force. The device includes a first support member for mounting to a wall, a second roller support member pivotably connected to the first member, and a third roller support member fixedly secured to the second member, a pair of rollers with substantially parallel axes and each supported between the second and third support members, and a crank interconnected with one of the rollers to drive that roller, which then drives the other roller.

Abstract: An improved wringer device is provided for squeezing water from a cloth or chamois when fed between a pair of adjacent rollers. Each roller is made from thermoformed plastic, or molded elastomeric material with an outer surface defining a plurality of axially aligned curvilinear hill and valley surfaces. The hill surface of one roller meshes with a valley surface of the adjacent roller to assist in feeding the cloth through the rollers and to maximize efficiency by minimizing required cranking force. The device includes a first support member for mounting to a wall, a second roller support member selectably connected to the first member, and a third roller support member fixedly secured to the second member, a pair of rollers with substantially parallel axes and each supported between the second and third support members, and a crank interconnected with one of the rollers to drive that roller, which then drives the other roller.

Abstract: A pressure actuator is provided for a valve having a housing and an actuating stem, wherein an annular housing is attachable at one end of the valve housing and a cylindrical piston element is concentrically fixedly mounted to the other end of the annular housing. A cup-shaped cylinder is provided to cooperate in sliding and sealing relationship with the exterior of the piston. The cylinder defines an annular space between its exterior surface and the interior bore of the annular housing and spring elements are mounted in the annular space. If desired, an indicating stem passes through a bore in the fixed piston element and is interiorly engaged with the movable cylinder element, thus providing an indicating actuator wherein the total length of the actuator is not substantially in excess of twice the stroke of the actuator.

Abstract: A pressure actuator is provided for a valve having a housing and an actuating stem, wherein an annular housing is attachable at one end of the valve housing and a cylindrical piston element is concentrically fixedly mounted to the other end of the annular housing. A cup-shaped cylinder is provided to cooperate in sliding and sealing relationship with the exterior of the piston. The cylinder defines an annular space between its exterior surface and the interior bore of the annular housing and spring elements are mounted in the annular space. If desired, an indicating stem passes through a bore in the fixed piston element and is interiorly engaged with the movable cylinder element, thus providing an indicating actuator wherein the total length of the actuator is not substantially in excess of twice the stroke of the actuator.

Abstract: An actuator is provided which is respondable to control fluid pressure for moving an operative means of a valve between open and closed positions. Valve means are movable between open and closed positions and communicate between the accumulator means and the fluid passage means to permit fluid control pressure charging of the accumulator chamber when the valve is in the open position and for preventing discharge of fluid pressure within the accumulator chamber when the valve is in the closed position. The valve is responsive to pressure differential between the accumulator chamber and the fluid passage means.

Abstract: An actuator for a rotary valve preferably embodying a diaphragm motor operated by pressure fluid. A driving sleeve is reciprocated linearly by the diaphragm motor and within said sleeve is a rotatable shaft, which is axially aligned with the diaphragm motor and driven by a ball screw. A driven sleeve is fixed to said shaft and receives the stem of the valve. All parts are in linear alignment. Means are provided for limiting the extent of the linear movement of the parts.

Abstract: A control fluid valve assembly is provided which is respondable to a pressure monitored fluid. The assembly preferably comprises first and second valve seats within a housing. A spool element is shuttleable within the housing near the valve seat by either manual or mechanical manipulation to first and second positions and is responsive to pressure variation within the monitored fluid to shuttle it to a second position. Balls are contained in first and second valve head groups and are carryable by the spool element, the balls being selectively sealingly engagable onto and wipable off of the valve seat means to control fluid flow of the control fluid within the assembly in response to the pressure monitored fluid. A plurality of seals are defined between the housing and the spool means to prevent fluid communication therebetween and to define flow passageways across the spool.

Abstract: An actuator is provided for converting linear to rotary motion to manipulate a valve. Preferably, the actuator has a rotor which is rotatable about an axis and is operably associatable with the valve member. A pair of motors, preferably actuated by pressure fluid, each includes a reciprocal push rod assembly. Flexible means are coupled between the push rod assemblies of the motors and spaced apart points on the rotor such that when one of the motors is actuated, the respective one of the push rod assemblies is moved linearly in a direction to transmit torque to the rotor, thus causing the rotor to rotate about its axis in one direction and manipulate the valve member to one of open and closed positions, and when the other of the motors is actuated, the other of the push rod assemblies is moved linearly in an opposing direction to transmit torque to the rotor whereby the rotor is rotated about its axis in an opposite direction to manipulate the valve to the other of open and closed positions.

Abstract: A control fluid valve assembly is provided which is respondable to a pressure monitored fluid. The assembly preferably comprises first and second valve seats within a housing. A spool element is shuttleable within the housing near the valve seat by either manual or mechanical manipulation to first and second positions and is responsive to pressure variation within the monitored fluid to shuttle it to a second position. Balls are contained in first and second valve head groups and are carryable by the spool element, the balls being selectively sealingly engagable onto and wipable off of the valve seat means to control fluid flow of the control fluid within the assembly in response to the pressure monitored fluid. A plurality of seals are defined between the housing and the spool means to prevent fluid communication therebetween and to define flow passageways across the spool.

Abstract: An actuator is provided which is respondable to control fluid pressure for moving an operative means of a valve between open and closed positions. The actuator comprises a housing defining a cylindrical bore therewithin. In one form, a shaft is carried in the housing and is engagable with the operative means. Means define first and second effective piston areas and are carried by one of the shaft and the housing and are sealingly slidable along the other of the shaft and the housing, being longitudinally movable within the cylindrical bore. The apparatus has first and second fluid chambers companionly associated with the means defining the first and second effective piston areas within the bore for yielding a differential force across the means defining the first and second effective piston areas upon increase of fluid control pressure within the actuator.