Abstract: A wiper blade has a pressure distributing rod for connection to a superstructure. The rod has two lips directed towards a surface to be wiped and between which a wiping element is placed. The pressure distributing rod is linked to the superstructure of the wiper by a plurality of claws. Deformations on the lips cooperate with at least one claw to confine shifting of the rod relative to the superstructure. Deformations at the ends of the lips retain the wiping element on the pressure distributing rod.

Abstract: An improved wrist mechanism for a robot arm is disclosed. A first drive mechanism is provided which includes a hollow upper knuckle portion adapted for rotation about a first axis. The upper knuckle portion terminates in an angled end. A second drive mechanism is provided which includes a first hollow torque tube journalled in the upper knuckle portion for rotation relative thereto and a lower knuckle portion having an angled end journalled to the upper knuckle portion curved end for rotation about a second axis. The first torque tube and the lower knuckle portion engage each other for rotation together, and the first and second axes of rotation intersect at a first point. A third drive mechanism includes a second hollow torque tube journalled in the first torque tube for rotation relative thereto, an intermediate drive member journalled in the lower knuckle portion curved end, and an output tube journalled in the lower knuckle portion for rotation about a third axis.

Abstract: An improved method is disclosed for forming a composite spark plug electrode having a thermally conductive metal core embedded within a corrosion-resistant metal sheath. Initially, a composite billet is formed by positioning a mass of the thermally conductive metal within a cup formed from the corrosion-resistant metal having a closed end and an open end. The corrosion-resistant metal at the open end of the cup extends further than the thermal conducting metal. The composite billet is passed open end first through an extrusion orifice. A head may be formed on the end of the resulting extrusion for welding to a wire terminal or an end of a wire terminal is positioned within the open cup end prior to passing the cup through the extrusion orifice for mechanically bonding the extrusion to the terminal. Excess metal on the end of the cup may be removed from the resulting composite electrode or it may be sheared from the electrode and repositioned axially along the electrode to form a shoulder.

Abstract: The present invention relates to a composite spark plug center electrode having a sparking tip composed of a precious or semi-precious metal and a method for producing same is disclosed. A right circular cylindrical billet of a corrosion-resistant material is initially formed into a cylindrical cup having an opened end and a closed end. A small conical recess may be formed in the center of the exterior of the closed end during the formation. A hole is next formed in the closed end of the cup. A right circular cylindrical billet of a high thermal conductivity material is next inserted within the opened end of the cup and pressed to fit tightly against the sidewall and bottom of the cup cavity to form a composite billet. An insert formed of a precious or semi-precious metal is then inserted within the hole and pressed to fit tightly therein. The opened end of the cup is formed inwardly to partially encase the billet therein.

Abstract: A fluid tip and air cap assembly for use in a spray gun is disclosed. A spray cap having a central opening also defines an internal threaded opening. A fluid tip is connected to the spray cap by a plurality of mating threads. A tip member of the fluid tip is concentrically and axially aligned, in a predetermined relationship, with the central opening of the spray cap.

Abstract: A method and apparatus for controlling a motor is disclosed in this application. A means for loading the motor is provided and the loading means is operatively connected to the motor. A variable drive means is operatively connected between the motor and the drive means. The variable drive means is capable of changing the loading on the motor. A sensing means is provided for actuating the variable drive means so the loading on the motor can be varied to keep the motor operating at substantially the maximum capacity of the motor.

Abstract: A method of and apparatus for forming a pressed body (54) with a bore (56) therein and with a notch (58) in the exterior surface thereof. The body (54) is formed by isostatically pressing particulate material (52) in an elastic mold (14) so that the material (52) is compacted into a self-supporting mass. Used in conjunction with the elastic mold is a mold closure and core holder member (32) to which is fixed a rigid core (42) and a resilient notch defining bar (44).

Abstract: A washing attachment for a compressed fluid spray gun is disclosed. The washing attachment includes a conduit, having a compressed fluid passageway positioned on the discharge end of the spray gun. An elongated member defining first, second and third passageways is in communication with the conduit with the second passageway in communication with the compressed fluid passageway. The first passageway is in communication with a source of cleaning fluid, a valve regulates the flow of cleaning fluid to the first passageway. The second passageway also communicates with the first passageway establishing a region of reduced pressure for drawing cleaning fluid into the first passageway. The first, second and third passageway terminate in discharge apertures adjacent the elongated member discharge opening. An opening in the elongated member communicates with the third passageway and is connected to a source of water.

Abstract: A wiper blade is provided and has a pressure distributing rod with a longitudinal groove having a substantially T-shaped form and a wiping element. The T-shaped form of the groove has a horizontal bar and a vertical bar. The wiping element has an upper portion located in the horizontal bar of said T, a medium portion partially located in the vertical bar of said T and a lower portion forming a wiping lip. The vertical bar of said T is tapered in a direction opposite to the surface to be wiped with the junction between the vertical bar and the horizontal bar of said T is defined by rounded curves. The upper portion of the wiping element is linked to the medium portion of the wiping element by a reduced portion which, in cross-section, is defined by rounded curves.

Abstract: A connecting device is provided for selectively connecting one of at least two different type wiper arm ends to a wiper blade having a rectangular opening in an upper portion of the blade. The wiper blade has laterally spaced side walls defining the rectangular opening with two pairs of aligned openings in said side walls. The diameter of one pair of aligned openings being different from the diameter of the other pair of aligned openings to receive recessed end portions of two different diameter pins. The connecting device seats in the rectangular opening and has latching means engaging with the recessed end portion of the selected one of the pins fitted in the pair of aligned openings in the side wall to retain the pin latched to the wiper blade. The connecting device has projections engaging with the edge of the rectangular opening in the blade or with a third pin on the blade for retaining the connecting device on the blade.

Abstract: A method for assembling a spark plug 20, 66 which includes providing a ground electrode 24 on a spark plug shell 22 having a predetermined final configuration and position and then mounting an insulator 34 in the shell. The distance from a step 38 in an insulator bore 37 to the ground electrode is measured. Based upon this measurement and a desired dimension for a spark gap 56, the dimension on a center electrode 48, 68, 74 between a shoulder 50, 76 and a tip 52, 80 is adjusted so that when the center electrode is disposed in the insulator bore with the shoulder seated on the bore step, the tip forms the desired spark gap with the ground electrode. The center electrode then is assembled into the insulator.

Abstract: A windshield wiper arm of conventional construction, i.e. having a mounting head, a channel portion pivoted to the mounting head, and an arm extension connected to the channel, and has at least one spring made of an elastomer. The elastomer spring is mounted in the channel of the wiper arm to operate in compression tension or as a leaf spring to urge a wiper blade affixed at the outer end by the arm toward the windshield. The elastomer spring may be in the shape of a cylinder or pseudo-cylinder and may operate in linear or volumetric compression.

Abstract: An improved electrostatic spraying apparatus for robot mounting is disclosed. The electrostatic spraying apparatus has a drive assembly connected to a spray gun assembly. The spray gun assembly has a base and a detachable barrel. The drive assembly acts to rotate the spray gun assembly through a plurality of preselected paths of movement. In addition, all coating contaminated parts can be removed from the apparatus by removing the detachable barrel.

Abstract: A wiper assembly is disclosed and has a wiper arm mounted on a drive shaft, a wiping element in wiping contact with a surface to be wiped, a pressure distributing rod or flexor slidably attached to the wiping element for reinforcing the wiping element, and leaf springs linking the wiper arm with the pressure distributing rod or flexor. The leaf springs may be integral with the arm and slidably connected to the rod or flexor by claws or may be integral with the rod or flexor and slidably connected to the arm. The parts of the wiper assembly may all be made of plastic. When the arm is made of plastic, a preshaped reinforcing blade may be part of the arm for assisting in conforming the wiping element to the surface to be wiped.

Abstract: A wiper blade is provided and has a wiping element, a superstructure having at least two articulated elements and an air deflecting device secured to at least one of the elements by resilient members. Stops, runners or abutments are carried by the lower edge of the air deflecting device to hold the lower edge of the air deflecting device spaced from the surface to be wiped by a limited but defined amount. The resilient members hold the air deflecting device and, in particular, the stops, runners or abutments on the air deflecting device resiliently against the surface to be wiped as the blade is reciprocated across said surface.

Abstract: A wiper assembly for motor vehicles comprising a wiper arm having one portion secured to a mounting head opposite the portion on the drive shaft is provided with at least two spaced-apart hinges to which at least two rods are secured to connect said hinges to a flexor on a wiping element by means of claws. The at least two rods extend in opposite directions from their respective hinges towards the flexor or pressure distributing profile. The end portions of the at least two rods remote from the hinges carry leaf springs which have free ends resting on the flexor or pressure distributing profile to conform the wiping element to the surface to be wiped.

Abstract: A pneumatic switch (25) responsive to the vacuum in a closed crankcase (20) of a reciprocating piston engine (15) for indicating when there is less than a predetermined quantity of oil (21) in the crankcase. The switch includes a housing (30) defining a cylinder (35), a closed end (48) and an open end (74). A piston (36) reciprocates and rotates in the cylinder through a path determined by a cam (51) and a follower (52). Crankcase vacuum is applied to a chamber (47) between the piston and the closed housing end to move the piston against a calibrated spring (50). An electric switch (70, 71 and 76) indicates when the piston is in the portion of its path of motion when the engine is operating and there is less than the predetermined quantity of oil in the crankcase.