Abstract: A trouble light which has at the end opposite to the cage a hook that is rotatably mounted to the handle of the trouble light. The rotatable mounting is achieved by the use of a rotation assembly inserted through a hole in the end of the handle of the trouble light. The rotation assembly includes two discs. The first disc is of greater diameter than diameter of the hole in the handle but of lesser diameter than the internal diameter of the handle, and the second disc is of greater diameter than the hole in the handle and of diameter approximating the outside diameter of the handle. The rotation assembly also includes an intermediate cylindrical portion attaching the two discs. The cylindrical intermediate portion has an outside diameter approximating the diameter of the hole in the handle of the trouble light.
Abstract: An automatic starting and electronic detection system for remotely starting a vehicle and scanning the vehicle's electrical system components for explosives or to detect malfunctions. The system includes a clock and remote-control receiver and transmitter combination which are electrically connected to the battery and operable to be energized for selectively connecting a current signal from the battery to the balance of the system including the starter circuit of the vehicle. The electronic detection device includes a cascade arrangement of timers for actuating various vehicle lights and accessories, and the vehicle's horn, in a predetermined sequence of sufficient duration to give a vehicle operator feedback for each step in the sequence.
Abstract: A balloon catheter having an expandable and collapsible elastic balloon is shown, wherein the balloon is reinforced by knitted fabric such that the balloon can not expand beyond a predetermined diameter regardless of the internal pressure applied to the balloon. The knitted construction permits the balloon to expand in diameter without shortening in length, and permits the balloon to collapse smoothly without folds and wrinkles.
Abstract: An improved tool for driving core plugs into the core plug holes of an engine block without having to remove the engine block from the vehicle. The tool comprises an arm support having a fastening means for fixedly fastening the arm support to a plurality of mounting holes normally provided to secure the oil pan to the engine block. A core plug driver having a cylindrically shaped driver head is pivotally connected to the arm support and is longitudinally and laterally adjustable relative to the arm support to compensate for differences in core plug hole locations in various types of engine blocks. A kit including a plurality of differently sized core plug drivers is also provided to permit installation of core plugs having various sizes. The tool provides a mechanical advantage in the installation of the core plugs which permits use in situations involving limited clearance space.
Abstract: A system and method for continuous tuning of a YIG oscillator over its entire operating range by control of a resolver in a feedback loop around the oscillator. The resolver and a delay line form a phase shift network the output of which is compared in phase with the output of the oscillator, which is also coupled to the input of the resolver, and the phase-difference signal resulting from the phase comparison is coupled to an integrator connected in turn to the tuning signal input of the oscillator. Repetitive operation of the resolver over its operating range enables continuous tuning of the oscillator over its entire operating range.
Abstract: A dispensing apparatus for dispensing discrete measured amounts of fluent material. A dispenser body includes a horizontal tubular chamber having an upper inlet port and a lower outlet port in communication with the tubular chamber. A reservoir communicates with the inlet port. A piston having a plurality of vertical and horizontal measuring holes is disposed within the horizontal tubular chamber and configured for rotational and reciprocal linear sliding engagement with the tubular chamber and each of the measuring holes can alternatively communicate with the inlet port and the outlet port when so aligned. The amount of fluent material dispensed is determined by the volume of the measuring hole. Another embodiment involves measuring holes open at one end only, with the piston rotatable to alternatively communicate the measuring hole with the inlet port and the outlet port.
Abstract: A fan apparatus including a fan spider having a hub portion and a plurality of outwardly extending arms, a plurality of fan blade assemblies, each fan blade assembly having a molded plastic blade with an attachment insert partially embedded within, the exposed portion of each attachment insert being rigidly attached to a corresponding one of the arms of the spider.
Abstract: A flexible sheath assembly for an indwelling catheter is provided which maintains the sterility of an otherwise exposed portion of an indwelling catheter so that the depth of insertion of the catheter within a body may be adjusted without causing contamination. The assembly includes a transparent flexible sheathing which is sealingly secured at its ends to front and rear hubs each having a passageway therethrough which is sized to permit passage of a catheter. The flexible sheathing is longitudinally expandable from a collapsed position wherein the sheathing is twisted about an axis substantially parallel to the length of the sheath. The flexible sheathing in the collapsed position defines a central passageway which is aligned with the front and rear hub passageways for permitting the catheter to be guided through the interior of the flexible sheathing as it is passed between the front and rear hubs.
Abstract: An apparatus permitting non-invasive electrical monitoring of the volume of flow of a fluid at relatively low pressures and flow rates. The apparatus comprises an analog flow gage having a housing with an inner flow chamber of upwardly increasing cross sectional area and a ball indicator received in the chamber. The flow chamber is in the shape of a cylinder with a plurality of longitudinal slits extending outwardly from the cylinder and equally radially spaced apart. Each of the slits has a wedge shaped tapered portion which accounts for the increasing cross sectional area of the chamber. The flow rate inside the chamber is directly linearly related to the amount of upward displacement of the ball indicator along the length of the tapered portions.
Abstract: An alarm bell assembly wherein the working parts are located beneath and protected by the gong, and preferably also a cover for the assembly, being secured by means comprising a detector such as a micro-switch by which alarm drive is actuable when the bell is tampered with. A rechargeable battery is connected to an external control circuit such that the battery remains fully charged and supplies the alarm drive if the control circuit connection is severed.
Abstract: A turntable furnace for heating particulate material and which is particularly suited for the industrial production of litharge. The particulate material is heated inside the furnace on a turntable hearth and distributed radially outwardly from the center of the hearth to a discharge opening by a pair of water cooled screw augers. The rotational speed of the turntable hearth and the screw augers may be independently controlled to vary the amount of mixing and blending of the particulate material and to vary the length of time the particulate material is subjected to heat.
Abstract: A circuit arrangement for a wide band superheterodyne radio receiver for receiving wide band FM, narrow band FM, and AM modulated radio signals between 25 and 550 MHz. The first LO is a phase locked loop controlled VCO, with central processing unit control of the phase locked loop circuitry. The first IF frequency is higher than the highest received frequency and the output frequency of the first LO is higher than the first IF. A second LO and second mixer convert the signal to a second IF lower than the first IF. Separate third and fourth IF band pass filters are provided at the second IF for WFM and for NFM/AM, respectively. The output of the third IF filter (WFM) is converted by a third LO and third mixer to a third IF lower than the second IF. A WFM demodulator is provided at the third IF. The output of the fourth IF filter (NFM/AM) is converted by a fourth LO and fourth mixer to a fourth IF lower than the second IF frequency. A fifth IF band pass filter is provided at the fourth IF.
Abstract: An addressable electronic switch which switches power to an electromechanical device upon detection of an individual access code in a serial data stream. The addressable switch is capable of series connection with a host computer and other peripheral devices. The switch circuit receives a serial data stream containing access code information for one or more of such switches as well as data to be transmitted to another peripheral device, detects the presence of an individual access code within the data stream and causes a switching action in response thereto, and retransmits all data except its own detected access code.
Abstract: A plastic drum and closure assembly for providing a replaceable two-inch straight pipe thread flange includes a synthetic material drum having a drum end which is molded with a two-inch buttress thread opening and an internally splined raised annular boss which is suitably designed and arranged to receive an externally splined plastic flange member which includes an internal series of two-inch straight pipe threads. The flange is secured to the raised annular boss by means of a metal retaining ring which is shaped and conforms to the outer lip portion of the flange thereby providing an outwardly-deformable surface and an inner back-up surface.
Abstract: A valve assembly for use in for example a stirrup pump. The valve assembly has a body defining a bore into which a carrier is inserted. The carrier defines a tubular passageway with a pair of O-rings spaced apart along the length of that passageway. The passageway is of substantially uniform internal diameter and the O-rings are received in annular grooves formed in the inside surface of the passageway. Two balls are provided each associated with one of the O-rings and an inlet port is provided which communicates with the space in the passageway between the O-rings. The application of an excess pressure to the port drives fluid from the port through one of the O-rings whereas the application of a reduced pressure to the port draws fluid through the other O-ring to the port.
Abstract: Described briefly, according to a typical embodiment of the present invention, a breathing mask is provided which has the intake air heater and heat and moisture exchange media located below the nose and situated for minimum exposure to heat transfer to the exterior. The mounting thereof is somewhat cantilevered from the mask, to minimize direct heat transfer to the exterior. Electric heating element means are provided and supplied from an energy pack mounted in the mask itself at a relatively low level. Some of the inhaled air passes through a first filter and moisture collecting medium to the mouth and/or nose of the individual wearing the mask. All inhaled air passes through a heat exchanger and a second filter and moisture exchanger. A valve is provided so that all air exhaled during normal respiration passes through both of the moisture exchangers.
Abstract: A plurality of resilient wires interconnected at their respective ends form a collapsible filter basket adapted to be introduced into a blood vessel of a patient. The basket in its expanded and relaxed state forms an apertured, elongate solid of revolution with pointed ends and has a base as measured between the pointed ends at least equal to the maximum diameter thereof. The design of the filter basket of the present invention facilitates insertion and adjustment of position or orientation once inserted and allows large masses of emboli to build up without seriously restricting the free area available for blood flow through the filter.