Abstract:
An induction heating device having a pair of inductors in a sub-assembly connected by fluid conduits to a cooling apparatus and by electrical conductors to an inverter and impedance adjusting circuit has a quick disconnect terminal assembly arranged closely adjacent to the inductors. This permits the inductor sub-assembly to be quickly and easily disconnected from the conduits and conductors so that the inductor sub-assembly may be moved to a new location easily and quickly. A plurality of inductor subassemblies may be used with a single terminal assembly to provide an accelerated method of heating a series of items by successively moving the terminal assembly to a next inductor sub-assembly to begin heating and to then move the non-disconnected inductor assembly to a new location while the next inductor sub-assembly is operating.
Abstract:
A power transformer and electrical current distribution device has a 480 V power inlet receptacle, at least one 120 V or 240 V power outlet receptacle, a transformer for transforming 480 V current to at least one of 120 V and 240 V current, and a first housing and a second housing each containing at least some of the 480 V inlet receptacle, the outlet receptacle and the transformer. A first part of an electrical connector is provided at the first housing, and a second part of an electrical connector at the second housing to mate with the first part of the electrical connector. The first housing part and the second housing part are electrically connected and disconnected at the electrical connector to permit transport of the power transformer and electrical current distribution device in at least two pieces.
Abstract:
A resistance heating system is provided which includes a resistance heater, a source of alternating current electricity connected by conductors to the resistance heater, and a controller comprising a timer arranged to connect the source of alternating current electricity to the resistance heater for a selected time period and to disconnect the source from the resistance following the selected time period. In an embodiment, the resistance heating system is provided with a controller configured to be connected to a source of alternating current electricity and having a plurality of cable plug receptacles arranged to receive electricity. An electricity conducting cable having a cable plug at one end is configured to be received in the receptacles and has a resistance heater provided at an opposite end. A master timer may be connected with a communication arrangement to the controller. The master timer is arranged to control an electric output of a plurality of the receptacles.
Abstract:
A tube plug for sealing the end of a tube is provided, which includes a cylindrical housing member sized for insertion within the end portion of the tube. The housing member has a longitudinal blind bore comprising a smooth portion communicating with a threaded portion. An eccentric locking ring is mounted on the housing member for locking the inserted housing member against rotation relative to the tube. An insert member having a threaded end portion is received within the threaded portion of the bore. An enlarged portion is positioned to be drawn within the smooth portion of the bore in response to rotation of the insert member threaded end portion in the bore threaded portion. A tapered portion is provided between the end portion and the enlarged portion. The tapered portion is formed separately from the remainder of the insert member in the form of a truncated cone with a threaded bore therethrough for receiving the threaded end portion of the insert member. The enlarged portion has a recess therein for receiving a driving tool and for transmitting torque at levels greater than 450 inch pounds. The tapered portion and the enlarged portion are sized to cause the smooth portion of the bore to expand, thereby providing a seal between the housing member and the tube.
Abstract:
A tube plug kit including a tube plug having a housing member and a locking member, the housing member having a smooth longitudinal bore communicating with a threaded portion, the locking member mounted on the housing member. An insert member having a first threaded end portion is received within the threaded portion of the bore, an enlarged portion positioned to be drawn within the smooth portion of the longitudinal bore in response to rotation of the insert member in the longitudinal bore and a drive portion configured to receive a torque applying tool in a rotationally driving manner. A torque limiting region is located in the insert member to limit an amount of torque the drive portion can transmit to the first threaded end portion.
Abstract:
A tube plug kit for sealing the end of a tube is provided. The tube plug kit includes a tube plug having a housing member and a locking member, an insert member having a threaded end portion received within the threaded portion of the bore and an enlarged portion positioned to be drawn within the smooth portion of the longitudinal bore in response to rotation of the insert member in the longitudinal bore. The tube plug kit also includes an actuating tool and a tapered member between the enlarged portion of the insert member and the longitudinal bore of the housing member. The enlarged portion has a recess therein for receiving the actuating tool.
Abstract:
A rod turning tool having a first sleeve with at least one open end and having an internal thread and an external tapering with second and third sleeves surrounding the first sleeve and arranged on uphill and downhill sides of the external tapering, the second and third sleeves having compatible taperings on the inside diameters thereof to be flush with the external tapering of the first sleeve, and a plurality of fasteners connecting the second and third sleeves axially. A tightening of the fasteners drawing the second and third sleeves together, sliding along the external tapering which acts to compress the first sleeve against a rod threaded into the internal threads of the first sleeve. In an alternate embodiment, the second sleeve is located against the external tapering and the third sleeve is fixed in axial position by an external flange of the first sleeve and the plurality of fasteners draws the second sleeve toward the fixed third sleeve to compress the first sleeve.
Abstract:
A resistance heating system is provided which includes a resistance heater, a source of alternating current electricity connected by conductors to the resistance heater, and a controller comprising a timer arranged to connect the source of alternating current electricity to the resistance heater for a selected time period and to disconnect the source from the resistance following the selected time period. In an embodiment, the resistance heating system is provided with a controller configured to be connected to a source of alternating current electricity and having a plurality of cable plug receptacles arranged to receive electricity. An electricity conducting cable having a cable plug at one end is configured to be received in the receptacles and has a resistance heater provided at an opposite end. A master timer may be connected with a communication arrangement to the controller. The master timer is arranged to control an electric output of a plurality of the receptacles.