Abstract: Disclosed herein is a rivetless floating anchor nut assembly comprising a nut member having opposed lugs and a onepiece metal basket member which has a sleeve portion and a nut member engaging and retaining portion. The sleeve portion is adapted to be permanently deformed in an aperture in a workpiece to affix the basket member to the workpiece and the nut member engaging and retaining portion has a pair of wings each having slots therethrough in which the nut lugs are captured. The wings are resiliently flexible to permit removal and replacement of the nut member an indefinite number of times. The basket member has a hardness in the range between 34 and 38 on the Rockwell C scale.Also disclosed herein is a flaring tool useful in deforming the sleeve portion to affix the basket member and hence the assembly to the workpiece. The tool comprises an upper face and a flaring portion projecting from the upper face.

Abstract: Disclosed herein is a female electrical connector for separably connecting a male contact element with a high voltage circuit. The connector comprises a conductive housing having a first end adapted to receive the male contact element, a second end adapted to be closed and an internal wall surface providing an axially extending opening therebetween. The connector includes an elongate female contact assembly including a tubular conductive piston within and in conductive relationship with the housing and axially movable between a normal first position wherein the piston is maximally spaced from the first housing end and a second position. The piston provides a chamber adjacent the second housing end. The assembly also includes female contact means, for engaging the male contact element, carried by and movable with and in electrically conductive relationship with the piston.

Abstract: Apparatus for providing a fluid pressure output signal upon receipt of fluid pressure input pulses in predetermined number. Fluid pressure isolation is provided as between input and output portions of the apparatus whereby the fluid pressure level of the output signal may be variably preselected irrespective of the pressure level of the input pulses.

Abstract: A radial void present at the juncture of interengaged electrical connector elements in an electrical connection is reduced in size and relocated to a position of lesser electrical stress by a flexible annular lip integral with one of the connector elements and urged, in response to completion of the connection, into the void.

Abstract: A circuit panel connector for enabling the connection of a plurality of circuit terminals at the edge of a circuit panel, such as a printed circuit board, with external conductors includes a unitary block of dielectric material with an elongate slot and self-aligning unitary electrical contact members each having opposed tines for receiving the edge of the circuit panel and a terminal portion with a platform and a clamping screw for selectively securing an external conductor to the electrical contact member.

Abstract: An unoriented supply of similar articles, each having a shank and a head of greater dimension than the shank are introduced into orienting means which include a trough having an inclined slot at its bottom and a plurality of cleats positioned at fixed locations on its side walls. Upon vibration, the articles become separated resulting in certain of the articles becoming oriented within the slot, with the unoriented articles being returned to the supply. The oriented articles are then directed to storing means which include a track including a straight lower portion, level maintaining means and a discharge end wherein the articles are discharged at a predetermined rate to article receiving, positioning and carrying means.

Abstract: Disclosed herein is a bolt retainer for use as a component of an access panel fastener. The retainer comprises a grommet having an axial end and an aperture in open communication therewith. The grommet has a radial shoulder surface facing away from the end of the grommet which also has an internal surface extending toward the end of the grommet from the radially inner edge of the radial shoulder surface. The disclosed retainer has only two discrete retaining jaws in the aperture adjacent the radial shoulder surface and spring means biasing the jaws toward the axis. Each jaw is C-shaped and is substantially 180.degree. in circumferential extent. Each jaw also includes a boss adapted to enter the cylindrical surface of the grommet to limit jaw opening and the jaws present to the bolt a configuration of greater axial length than the pitch of the bolt thread.

Abstract: A low-profile snowplowable pavement marker includes a metal base member having two arcuate-bottom keel members interconnected by an arcuate-bottom support member, the upper surfaces of the keel members respectively defining inclined ramps from a plane at one end of the base member toward the other end thereof to corresponding coplanar top surfaces, the support member having a support surface lying below the plane for supporting thereon a cube corner reflex reflector assembly partially recessed below the plane. The keel members and the support member are respectively secured in complementary arcuate recesses with the plane substantially coplanar with the roadway surface, the recesses being cut in the pavement with circular blade cutting apparatus without moving the cutting apparatus along the pavement. A bidirectional marker is shown as well as cutting apparatus for cutting the three recesses therefor simultaneously.

Abstract: Proteins such as enzymes are immobilized on a microporous member comprising a binder or matrix and finely divided filler particles dispersed throughout the binder. The proteins are coupled to the filler particles, and the microporous member has a relatively large surface area and a large number of available protein coupling sites. Enzymes coupled to the microporous member have a relatively high reaction efficiency when used to act on a substrate.

Abstract: A sleeve-like insert of conductive elastomeric material of a type which serves as an internal shield in electrical connectors for connecting high voltage cables has an end portion folded upon itself, the enfolded portion being substantially permanently retained in its desired position by allowing insulative elastomeric material to fill apertures in the end portion and become bonded thereto in a void free manner, during molding of an insulating outer sleeve-like jacket about the insert.

Abstract: Disclosed herein is a fluid pressure indicator for providing visual indication of the magnitude of a fluid pressure condition. The indicator comprises an optical element including a front surface for receiving ambient light and a rear, light-reflecting portion having three mutually perpendicular surfaces which define a cube corner having an apex remote from the front surface, and a one-piece, resilient, imperforate diaphragm in cooperative relationship with the rear, light-reflecting portion of the optical element, to provide a chamber between the interior of the diaphragm and the three perpendicular surfaces. The diaphragm is normally not in optical engagement with the three perpendicular surfaces, but is resiliently deformed into such optical engagement upon the application of a positive fluid pressure differential to the exterior of the diaphragm.

Abstract: Disclosed herein is a fluid pressure indicator for providing visual indication of the magnitude of a fluid pressure condition. The indicator comprises an optical element including a front surface for receiving ambient light and a rear, light-reflecting portion having three mutually perpendicular surfaces which define a cube corner having an apex remote from the front surface, and a one-piece, resilient, imperforate diaphragm in cooperative relationship with the rear, light-reflecting portion of the optical element, to provide a chamber between the interior of the diaphragm and the three perpendicular surfaces. The diaphragm is normally not in optical engagement with the three perpendicular surfaces, but is resiliently deformed into such optical engagement upon the application of a positive fluid pressure differential to the exterior of the diaphragm.

Abstract: A low-profile snowplowable pavement marker includes a base member generally cylindrical in outline and adapted to be installed in a drilled recess in the pavement, and having a support surface disposed in use below the level of the roadway surface for supporting thereon a cube corner reflex type reflector assembly partially recessed below the roadway surface, the top surface of the base member defining an inclined ramp rising from the roadway surface at one end of the base member toward and above the reflector assembly for protecting same from contact with snowplow blades. A monodirectional marker has an annular base with the reflector assembly mounted along a sector thereof and with arcuate ramps. A bidirectional marker has two part-annular end portions intersecting at and interconnected by a central portion carrying the reflector, and arcuate ramps converging upwardly toward the reflector from both ends of the marker.

Abstract: A snowplowable pavement marker (which may be of low profile) includes a metal base member having two arcuate-bottom keel members interconnected by an arcuate-bottom support member, the upper surfaces of the keel members respectively defining inclined ramps each having an inner edge and an outer edge respectively rising at different angles from a plane at one end of the base member toward the other end thereof to corresponding coplanar top surfaces, the support member having a support surface for supporting thereon a cube corner reflex reflector assembly. The keel members and the support member are respectively secured in complementary arcuate recesses cut in the pavement.

Abstract: An access panel fastener in which a threaded fastener element is captured within an annular retainer affixed to the access panel and is movable axially relative to the retainer between a securing position and a hold-out position. A plurality of jaws in the retainer are resiliently biased radially inwardly by a surrounding cochlear spring to retain the fastener element in the hold-out position and enable ready movement of the fastener element past the jaws to the securing position. The access panel fastener includes a complementary threaded fastener having a self-locking mechanism which utilizes a collar of synthetic resin material.

Abstract: Disclosed herein is improved apparatus for mass producing locking patches of thermoplastic material on threaded portions of magnetic elements, such as screws. The apparatus includes a rotating dial assembly comprising a plurality of similar, closely-spaced permanent magnets, thermally isolated from one another. The screws to be patched are delivered to the periphery of the dial assembly where they are magnetically held by the magnets and carried past a heating station and a station where a stream of powder of the thermoplastic material is directed against preselected portions of the threads of the heated screws and fused in place to form the desired patches bonded to the unmodified threads of the screws.

Abstract: A self-locking internally threaded fastener in which the self-locking characteristic is derived from a ring-like plastic patch having a circumferential extent of greater than 180.degree. adhered to the thread-defining surface of the fastener. A method for making the fastener includes seating a fastener upon a pin having a configuration which establishes a cavity between the pin and the fastener, placing an initial deposit of plastic powder in the cavity and then re-distributing the plastic powder, as by blowing, to form a ring-like deposit which can be heated until fused to establish the desired ring-like patch. An apparatus includes a pin having a seating shoulder and a frusto-conical tapered portion for receiving the fastener and establishing the cavity.

Abstract: Apparatus for connecting and disconnecting a male contact element and a high voltage cable includes a housing securable to the cable and defining an axial passage having a cavity, a piston assembly with a female contact element movable in the passage and defining a chamber, material generating arc-quenching gas, a gas-pressure responsive valve providing communication between the chamber and cavity selectively on fault closure to accelerate engagement of the contact elements and connectors for providing continuous electrical connection to the female contact element of substantially fixed resistivity.

Abstract: A self-locking internally threaded fastener in which the self-locking characteristic is derived from a ring-like plastic patch having a circumferential extent of greater than 180.degree. adhered to the thread-defining surface of the fastener. A method for making the fastener includes seating a fastener upon a pin having a configuration which establishes a cavity between the pin and the fastener, placing an initial deposit of plastic powder in the cavity and then re-distributing the plastic powder, as by blowing, to form a ring-like deposit which can be heated until fused to establish the desired ring-like patch. An apparatus includes a pin having a seating shoulder and a frusto-conical tapered portion for receiving the fastener and establishing the cavity.