Abstract: A vibratory screen assembly includes a rigid frame having a pair of parallel side members that are spaced apart such that a space is provided between them. A tappet assembly extending horizontally across the space between the side members includes a horizontal member having opposing ends secured to the frame. A screen placed over the tappet assembly provides a screening medium having a mesh size. A vibrator motor is located at each of the opposing ends of the horizontal member to form a cooperative pair of vibrator motors that induce vibrations in the horizontal member and in the screen. As the screen vibrates, aggregate material that is smaller than the mesh size passes through the screening medium and aggregate material that is larger than the mesh size does not pass through the screening medium.

Abstract: A vibratory screen assembly includes a rigid frame having a pair of parallel side members that are spaced apart such that a space is provided between them. A tappet assembly extending horizontally across the space between the side members includes a horizontal member having opposing ends secured to the frame. A screen placed over the tappet assembly provides a screening medium having a mesh size. A vibrator motor is located at each of the opposing ends of the horizontal member to form a cooperative pair of vibrator motors that induce vibrations in the horizontal member and in the screen. As the screen vibrates, aggregate material that is smaller than the mesh size passes through the screening medium and aggregate material that is larger than the mesh size does not pass through the screening medium.

Abstract: A key alignment system for safety interlock switches uses alignment holes, and alignment pins to compensate for misalignment between a body assembly and a key assembly. The misalignment is often due to normal wear and tear or outright abuse of a gate or other movable member that should be safely interlocked. The key is fixed to a floating plate connected to a mounting plate by a suspension. The alignment pins and holes on or in a fixed alignment assembly and the floating plate can move the floating plate into a position such that the key enters the key hole. Some embodiments incorporate the fixed alignment assembly into the body assembly. The normal function of a keyed safety interlock wherein the key can be caught and held or released is preserved and enhanced by compensating for misalignment.

Abstract: An elevator door interlock incorporates cast parts thereby drastically reducing the number of parts required for assembly. Other elements are also incorporated to further reduce complexity in manufacturing, servicing, and configuration.

Abstract: A key alignment system for safety interlock switches uses alignment holes, and alignment pins to compensate for misalignment between a body assembly and a key assembly. The misalignment is often due to normal wear and tear or outright abuse of a gate or other movable member that should be safely interlocked. The key is fixed to a floating plate connected to a mounting plate by a suspension. The alignment pins and holes on or in a fixed alignment assembly and the floating plate can move the floating plate into a position such that the key enters the key hole. Some embodiments incorporate the fixed alignment assembly into the body assembly. The normal function of a keyed safety interlock wherein the key can be caught and held or released is preserved and enhanced by compensating for misalignment.

Abstract: A threaded adaptor device for connecting two devices wherein one device to be connected has a threaded opening for connection to a wiring harness and the other device has a pin connector element. The adaptor includes a body portion that is threaded for direct attachment to conventional openings in conduits, cables and the like. Extending down from the threaded body portion is a wiring sub assembly that easily connects to the opening of the conduit. The other end of the threaded body portion includes a connector which preferably is a male connector with one or more pins extending out from the body of the device, electrically connected to the wiring harness, and protected by an outer, hollow member into which the device connector is inserted. Another embodiment is the use of a female connector, depending on the design of the device being connected.

Abstract: A staked terminal rivet system and method configured to mount a switch device onto a printed circuit board is disclosed as an alternative to traditional molded-in or staked-on secondary terminal systems. An electrically conductive rivet functioning as a terminal reduces overall manufacturing costs and provides a higher degree of precision for mounting onto printed circuit boards. This technology has wide ranging applicability, including: industrial machinery and equipment, commercial aviation, test instrumentation, agricultural machinery, process control and medical instrumentation.

Abstract: A surface acoustic wave die system and method are disclosed herein, including a surface acoustic wave sensor comprising one or more surface acoustic wave die disposed and hermetically sealed between a base and a cover. An adhesive is generally for securing one or more of the surface acoustic wave die to the base, which is configured with a pattern of cross hatches formed thereon in order to permit the adhesive to adhere to the base. The adhesive is placed under a location wherein surface acoustic wave die is to be located. The surface acoustic wave die is thereafter pressed into the adhesive, whereby upon a subsequent curing of the adhesive, the surface acoustic wave die is held securely in place, while remaining flexible as required by sensing applications associated with the surface acoustic save sensor.

Abstract: A wireless sensor fixture system and method are disclosed in which an antenna block is provided that includes a plurality of grooves, wherein such grooves maintain a plurality of antennas located on a portion of the antenna block. A top locator block can be positioned above the antenna block, wherein the top locator comprises a top surface having depression thereon for receiving and locating a patch, which can receives wireless signals from the antennas for sensor testing thereof, wherein the patch comprises a SAW sensor and an RFID tag over-molded into the patch. Additionally, an antenna cover can be connected to the antenna block for protecting the plurality of antennas and wiring thereof. A BNC connector protrudes from the antenna block and is electrically connected to the plurality of antennas via the wiring thereof.

Abstract: A sensor pre-load and welding apparatus and method are disclosed. A weld fixture apparatus includes a fixture base upon which a sensor package having a sensor base and a sensor cover is located, and a load bar associated with a spring, wherein the load bar provides a specific weight to the fixture base in order to assist in maintaining the sensor cover and the sensor base parallel to one another upon the fixture base. An adjustable load foot is generally located above the fixture base, such that the adjustable load foot applies a pre-determined load with a specific weight to the sensor base in order to maintain the sensor cover and the sensor base securely in place as the sensor base and the sensor cover are welded to one another in order to configure the sensor package.

Abstract: A pre-load weld fixture apparatus and method are disclosed, which include a stationary pivot block attached to a base, wherein the stationary pivot block is located adjacent to a nest for maintaining an object to be welded. Additionally a pivot arm is associated with a pivot arm insert, wherein the pivot arm rotates about a pivot point provided by a pin press component associated with the stationary pivot block, such that the pivot point is fixed to the stationary pivot block in relation to the object to be welded and wherein the pivot arm is positioned parallel to the nest. A spring block can be connected to the stationary pivot block, wherein the spring block provides tension to the pivot arm in order to permit a user to maintain the object upon the base with a desired tension for welding thereof. Finally, a torsion spring can be maintained by the spring block, wherein the torsion spring allows the spring block to provide tension to the pivot arm.

Abstract: In general, a pressure rail having a top surface and a bottom surface and one or more pressure inlets to a pressure channel can be located within the pressure rail. The pressure channel can be drilled into the pressure rail. A plurality of patch depressions can be formed into a plurality of sealing surfaces on the top surface of the pressure rail upon which a patch is positioned. A plurality of antenna blocks is generally disposed upon the pressure rail, wherein each antenna block thereof includes at least two antennas. Two antennas can be connected to a respective antenna block among the plurality of antenna blocks utilizing a silicone adhesive. Each antenna block is respectively located on the pressure rail in order to provide wireless data indicative of pressure and temperature conditions associated with each patch among the plurality of patches.

Abstract: In general, a pressure rail can be provide, which includes one or more pressure inlets and a plurality of pressured cavities formed therein. Housing components can be respectively located atop the pressured cavities, such that each housing component is sealed to a respective pressurized cavity. A connector component can be threaded into the top of each housing component for attachment to a sensor (e.g., a SAW sensor) for testing thereof. Each housing component can be configured from a clear thermoplastic material, which protects the housing components from RF frequencies, and high temperature and pressure conditions.

Abstract: A toggle switch apparatus is disclosed, which includes a toggle mechanism and a plurality of basic switches maintained within a tubular housing. An actuator is associated with at least one spring which together can serve to actuate the plurality of basic switches. A lead wire termination assembly can also be configured within the tubular housing, wherein the lead wire termination assembly comprises a plurality of lead wires attached to a plurality of pin contacts that exit through a cover of the tubular housing, thereby permitting the toggle switch apparatus to be actuated manually in a maintained position during high gravity conditions. The tubular housing can be configured as a sealed metal tube. A header can also be sealed into the tubular housing utilizing a glass-to-metal seal.

Abstract: An electrical contact assembly is disclosed comprising a bracket having at least first and second cavities located on opposite ends of the bracket and an opening extending through the bracket between the first and second cavities. A retention member is arranged to be mounted within the bracket opening with a first portion of the retention member extending outward from the first cavity and a second portion of the retention member extending outward from the second cavity. Each first and second portion terminates in a head end. First and second helix-shaped electrical contacts are positioned about a respective retention member first and second portion and are compressively retained between a respective and associated head end and bracket cavity.

Abstract: A sheet metal bending tool for prying and bending sheet metal flanges such as those found on vehicle doors, air conditioning duct work, and the like. The tool includes a handle having a pair of flange engaging jaws at opposed ends thereof in which a first jaw is positioned at a right angle to the handle and a second jaw is positioned colinearly with the handle. Alternate embodiments of the present invention include a third jaw positioned adjacent to the first jaw and an angle adjustment assembly for facilitating an adjustment of the relative angle between one of the jaws and the handle.