Abstract: A heating apparatus for heating a fluid medium confined in a hermetically sealed housing chamber including a terminal assembly having a body member sealed in the housing chamber wall with pin means extending in sealed relation therethrough to provide electrically conductive inner and outer pin segments respectively connected to a heat transfer member and an electric power source, the inner pin segment means and heating element being electrically insulated from the housing wall.

Abstract: A refrigeration compressor incorporating an improved arrangement and method for securing the motor cover to the motor stator is disclosed which arrangement and method also greatly facilitate the setting of the air gap between the stator and rotor.

Abstract: A retention arrangement for retaining a motor cover and a thermal protection device over one end of a dynamoelectric motor uses connection bolts already available on the motor for mounting the stator and positions the protector in an annulus between the cover side wall and stator end turns and below the upward extension of the stator end turns. The retention arrangement includes a pair of plates being bolted to the motor and encircling the end turns of the stator with first interengageable portions securing the cover to the plates and second interengageable portions securing at least one plate to a holder to which the protector is mounted, such retention assuring that after the air space between the stator and rotor is set a suction duct will be positioned to cool the protection device and the end turns.

Abstract: This invention relates to a pickup truck tailgate protector having a third tail light. The tailgate protector is made out of a plastic material shaped to fit over the top and top rear portion of the tailgate. The tailgate protector is attached to the tailgate by rivets. The plastic protects the metal and paint on the top portion of the tailgate from damage. The plastic tailgate protector has a housing in it for a third tail light in the center of its length. The third tail light provides extra safety for the vehicle, as studies have shown that the third tail light reduces traffic accidents.

Abstract: An X-ray inspection system for manually or automatically performing digital fluoroscopy inspections and/or computed tomography inspections by X-ray examination of manufactured parts incorporates a computer system which automatically analyzes the inspected parts for flaws. The system includes apparatus for automatically positioning the parts in an X-ray machine for obtaining fluoroscopy and tomography views of the part and for acquiring data from the inspections at production rates. The system automatically identifies the location of rejectable flaws in the parts during the fluoroscopy scanning and subsequently identifies those locations for obtaining tomography scans, if the identified flaw location is questionable. The system can automatically reject parts containing flaws identified during the fluoroscopy inspections. This system operates in a real-time environment by providing analysis of one part while a subsequent part is being subjected to X-ray examination.

Abstract: The invention provides a means whereby a body such as that of a butterfly valve can be prepared with minimal machining. The manufacture of a butterfly valve is described in which the stem openings for the valve are left in their as-cast condition, the stem bushings inserted, aligned with a stem replica and then permanently locked in aligned position by filling the voids between the bushings and the walls of their openings with the same elastomeric compound from which the valve seat is molded. The compound, after curing or setting, being of such thin wall section that for all practical purposes it is a rigid material.

Abstract: A beverage truck having unique unloading and loading apparatus. The apparatus, which may be mounted to an existing beverage truck, or built into one as original equipment, has a framework at the front and back of the truck body which supports a track that spans the length of the body roof along its longitudinal center line. A trolley is carried on the track and moved by a powered chain drive from one end of the body to the other. Mounted to the trolley is a pivoting telescoping arm assembly that carries at the end of the arm a fork lift assembly. By operating simple controls, the user can move the trolley, extend the arm, raise, lower, rotate and tilt the forks to cause the forks to enter into the cargo area of the body, under the roof, to unload cargo from the truck and place it, e.g., on a loading dock or on the ground.

Abstract: A method of treating a subterranean formation comprising contacting the formation with an aqueous composition of desired viscosity. The aqueous composition is prepared by polymerizing water-soluble monomers in an aqueous solvent with a free radical initiator comprising a reduction-oxidation couple between cobaltous amine complex and an alkali metal or ammonium salt of peroxydisulfate.

Abstract: A mechanized system distributing the access, test and communication functions to the point of testing, typically the centralized switching facility serving the telephone loops and equipment to be tested. Computer (200) stores information about each subscriber loop in the geographical area served by a system. Front-end computers (220,221) interact with computer (200) to retrieve pertinent data regarding loops to be tested. Each switching facility in an area includes a loop testing system (e.g., 160) that implements the required functions. The communication functions residing in front-end computers (220,221) and loop testing systems (160,161) are coupled via a data communication network (140) in a manner that allows any front-end computer to communicate with any loop testing system. Users of the system control access and test from consoles having the capability of establishing independent communication paths over the national dial network for interactive tests on loops accessed through standard test trunks.

Abstract: A mechanized system distributing the access, test and communication functions to the point of testing, typically the centralized switching facility serving the telephone loops and equipment to be tested. Computer (200) stores information about each subscriber loop in the geographical area served by a system. Front-end computers (220,221) interact with computer (200) to retrieve pertinent data regarding loops to be tested. Each switching facility in an area includes a loop testing system (e.g., 160) that implements the required functions. The communication functions residing in front-end computers (220,221) and loop testing systems (160,161) are coupled via a data communication network (140) in a manner that allows any front-end computer to communicate with any loop testing system. Users of the system control access and test from consoles having the capability of establishing independent communication paths over the national dial network for interactive tests on loops accessed through standard test trunks.

Abstract: A sawhorse frame is provided for use with a separate work-supporting top member that may be disposable. The frame is made with the paired legs at each end hinged together near their tops, and with pincer-like clamping jaws formed near the hinge points so that the work-supporting top member is very forcefully clamped in place. Force for this clamping is derived from the force with which the feet of the sawhorse are pressed against the floor, acting through a large mechanical advantage that arises from the foot-to-hinge distance's greatly exceeding the clamping-jaw-to-hinge distance. When the sawhorse frame is not in use, the same hinge arrangement facilitates folding the bottoms of the legs together to a more compact configuration for storage.

Abstract: Circuitry, and associated methodology, for locating resistive shunt faults on a cable pair comprises DC source (120) and current sensors (121,122) which provide measured information utilized to estimate the resistance of the pair between the fault and a test position. In locating faults of a single-sided nature, two sets of measurements, either absolute or ratio type, are effected from the test position with the pair shorted at a point beyond the fault. In locating double-sided faults, three sets of current dependent measurements are taken at the measurement point. A reference pair is required for double-sided faults, and various strapping arrangements between the pair under test and the reference pair are required at a point beyond the fault depending on the required set of measurements.

Abstract: A portable sawmill system comprising at least three wheeled, independently movable modules is disclosed. The modules are independently maneuverable to a land site having a ready source of logs to be processed and are arranged in a preselected geometrical configuration adjacent one another and the source of logs. A log from the source is received on the first module and debarked. The debarked log is moved axially and transversely off the first module and onto a second module. A plurality of saw means are carried by the second module to form boards from a log being processed. A third module is located at the output side of the second module and is adapted to receive and further process the boards formed on the second module.

Abstract: A low pressure drop air flowmeter (10) for an automobile engine is disclosed. The meter contains a main air flow passage (24), a relatively small venturi (20) to receive a portion of the air flow, pressure ports (98a and 120) for sensing stagnation and static pressure and a set of swirl vanes (22) disposed adjacent the outlet of the venturi and operative to impart a swirl to the remainder of the air in the main passage, thereby creating a reduced pressure at the venturi outlet for amplifying the pressure difference between the stagnation and static pressure without appreciably increasing the pressure drop across the flowmeter. A tertiary passage (28) provides a path of fluid communication between points upstream and downstream of the swirl vanes. This passage includes a flow restricting throat (29) which is manually calibrated during or after assembly. Air exiting the tertiary passage impinges upon the swirl to modulate the vortex velocities.

Abstract: A device for filling a pneumatic tire and sensing the air pressure therein has a check valve disposed within a valve stem and a pressure sensing switch which is temperature compensated to adjust for air pressure changes within the tire due to changes in ambient temperature. Substantially perfect compensation can be achieved, within a limited range of operation, whereby the set point pressure versus temperature characteristic will track with the related tire pressure versus temperature characteristic. A manual set point adjustment feature is provided whereby the switch can be calibrated after it is assembled within a wheel and pneumatic tire. The switch can also be employed independently of, as well as in conjunction with, the check valve.

Abstract: A portable sawmill system comprising at least three wheeled, independently movable modules is disclosed. The modules are independently maneuverable to a land site having a ready source of logs to be processed and are arranged in a preselected geometrical configuration adjacent one another and the source of logs. A log from the source is received on the first module and debarked. The debarked log is moved axially and transversely off the first module and onto a second module. A plurality of saw means are carried by the second module to form boards from a log being processed. A third module is located at the output side of the second module and is adapted to receive and further process the boards formed on the second module.