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4853165 |
Method of using heat-recoverable articles comprising conductive polymer compositions
Methods of modifying substrates, in particular joining pipes, especially pipes composed of glass fiber-reinforced polymers, make use of heat-recoverable conductive polymer articles. An insert is...
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4853520 |
Device for fixing a window-pane on a rigid frame
A window-pane (2) such as an automobile windshield or rear window to be fixed on a rigid frame is provided at its periphery with a bead (5) of thermoplastic material. The device (1) for fixing the...
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4851647 |
Process for welding butt-jointed plastic tubes and welding device for performing the process
In order to weld butt-jointed plastic tubes, a welding element with a wire coil for electrical resistance heating is positioned between the abutting tube ends. The tube ends are pressed to each...
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4844072 |
Liquid-circulating thermal therapy system
A system for circulating hot or cold liquid through a pad placed in thermal contact with a patient for thermal therapy. The system includes a flexible thermal pad with an internal channel for...
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4839498 |
Electrically heated fish tank unit
An electrically heated fish tank unit includes a fish tank having a bottom standing on a frame having an upper surface with a central opening. A one piece flat electric heater disposed between the...
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4837424 |
Process for conducting and monitoring the temperature rise of electrically heated components
The invention relates to the conducting and to the monitoring, using an automatic machine, of the temperature rise of electrically heated components with which there is associated an identification...
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4833299 |
Flexible heating wrap apparatus for charged cylinders
A heating wrap apparatus (10) in combination with a pressurized refrigerant cylinder (100); wherein, the heating wrap apparatus (10) comprises a flexible heating unit (11); an insulation unit (12);...
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4828020 |
Internal finned heater-cooler for an extruder barrel
A Heater-Cooler unit that provides efficient heating and cooling in such a manner that the temperature is easily controlled. The unit's 360 degree exposure enables both fins and barrel surface to...
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4820359 |
Process for thermally stress-relieving a tube
A process for thermally stress-relieving a stressed portion of a metallic tube is disclosed herein. The process generally comprises the steps of inserting a small diameter radiant heater into the...
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4816089 |
Process for heat treating a heat exchanger tube surrounded by a support plate
A process for rapidly and uniformaly heat treating an Inconel® heat exchanger tube in the vicinity of a heat sink such as a support plate is disclosed herein. The process utilizes a radiant heater...
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4814584 |
Profiled PCT heater for heating a tubular member
A PTC heater for heating a tubular member includes an elongated profiled carrier body of heat conductive material having a first side provided with a flat support surface having a groove...
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4810859 |
Electrical warming device for containers
An electrical warming device (13) for wrapping around the outer circumference of a container (10) for warming moist tissues therein. The heating device (13) has an inner heating pad (18) inserted...
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4795877 |
Fault detecting device for welded pipe joints
In an electron-fushion welding process a fault, e.g. due to incorrect assembly of the pipe joint components, is detected by sensing the welding current and emitting a signal to actuate an audible...
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4795885 |
Flexible radiant tube heater
A flexible radiant tube heater is disclosed herein which is particularly useful in thermally stress-relieving the U-bend sections of the heat exchange tubes within nuclear steam generators. The...
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4792659 |
Garage door opener heater
A garage door opener heater for use on garage doors to heat the drive track of the opener during cold weather to prevent binding and restricted movement of the track when the lubricates within the...
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4778981 |
Electrically weldable sleeve for joining thermoplastic pipeline parts
The electrically weldable sleeve has a tubular sleeve member, heating elements arranged on the inner wall of the sleeve member and terminals for an energy supply. A material recess in the form of...
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4776529 |
Helicopter preheat assembly
A preheat apparatus for a helicopter wherein certain critical helicopter components are preheated preparatory to takeoff of the aircraft. The critical components include the main rotor gear case,...
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4771151 |
Self-heating lid for soldering to a box
A lid to be bonded to provide a hermetic seal has bonded thereto a thermally autoregulating heater for activating a heat activated sealing and bonding material to produce the desired seal between...
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4770442 |
Electroweld fitting or electroweld collar
An electroweld fitting or electroweld collar for synthetic resin pipes comprising a body of a thermoplastic and/or weldable synthetic resin, on the inner surface of which a heating coil is...
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4766922 |
Procedure for forming cocks closable by freezing, belonging to a liquid batch handling unit, and handling unit set up according to the procedure
The invention concerns a procedure for forming cocks closable by freezing, belonging to a liquid batch handling unit, and a liquid handling unit set up in accordance with the procedure. The unit...
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4752670 |
Bobbin assembly for a soldering/desoldering device using an etched foil heater
A bobbin assembly for a soldering/desoldering device may be readily produced by utilization of a heater assembly comprising an electrically insulating tape having an etched foil heater in the form...
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4745263 |
Current regulator for carpet seaming apparatus
Apparatus for controlling the current flow through metal foil heating elements in carpet joining tape comprises an oscillator which produces a high frequency output to drive a power amplifier so...
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4743321 |
Devices comprising PTC conductive polymers
The resistivity/temperature characteristics of PTC conductive polymers which have little or no cross-linking can be modified by stretching. The rate at which resistivity rises with temperature is...
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4743740 |
Buried element deicer
A perforated flat ribbon heating element embedded or sandwiched between the porous material and perforated sheet of honeycomb acoustic panel material used for sound suppression and deicing on ice...
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RE32643 |
Magnetically attachable electric preheater for automobile engines
A preheater unit magnetically attachable to the surface of the oil pan of an automobile engine includes an electric heating unit and a magnetic device situated within a rectilinear shell having an...
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4727242 |
Electrofusion coupler
An electrofusion coupler sleeve for use in connecting together two plastics pipes by fitting the ends into opposite ends of the sleeve and passing an electric current through a resistance heater...
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4723070 |
Electric heater especially for machines and tools for processing of plastics
A heater has two, hollow, half-cylindrical heat guides fastened to each other at one side by an articulated connector and at the other side by a bolted joint. Internal surfaces of the heat guides...
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4713129 |
Plastic pile protector and method of covering a pile with same
A device and method for covering pilings of piers and the like includes a plastic cover or sheet which is wrapped around the piling for protecting the piling against rot, weather and wear. The...
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4708608 |
Heat pad
A heat pad for pressing against a curved surface of an annular tire to vulcanize a tire patch having a channel-shaped sheet member of resilient conductive rubber material with reinforcing...
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4705937 |
Apparatus for automatically controlling the temperature of welding bands
A device for automatically controlling the temperature of welding bands consisting of a dividing circuit for determining the temperature of the welding band. A controller is provided to control the...
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4703150 |
Weldable connecting member for connecting or joining thermoplastic pipe elements
The connecting member has a sleeve body and a resistance heating wire embedded therein with terminals to a power supply. By heating the resistance heating wire, a welding area between the sleeve...
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4701598 |
Method of maintaining pipework and/or storage vessels at predetermined process temperature by using heat tracing tape and power control system
A heat tracing tape which can be cut to required lengths has a heating element comprising at least two lengths of woven or braided resistance wire each in the form of a flat strip. The strips are...
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4695335 |
Method for developing a predetermined fusing temperature in thermoplastic items
A method and apparatus for thermal fusion of thermoplastic pipes. Heat is applied to a joint interface between thermoplastic pipes and a thermoplastic coupling at a slow rate to raise the...
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4695712 |
Flexible autoregulating heater with a latching mechanism
A flexible autoregulating heater with a latching mechanism to form the strap that may be applied about work to be heated, the strap holding the work during the heating and subsequent cooling cycle....
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4686354 |
Inhalation apparatus
A composite flexible delivery hose 1 for use with a medical humidifier comprises an inner tubular member 2 around which is spirally wound a heater cable 4. The heater cable 4 includes an outer body...
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4686071 |
Temperature indication assembly for use with heat-recoverable articles
An assembly which comprises a heat-recoverable article which is adapted to join substrates together and a plug which is in a recess of the article. The plug comprises a first polymer, e.g. nylon,...
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4684789 |
Thermoplastic fitting electric welding method and apparatus
A method and apparatus for electrically heat welding a thermoplastic fitting having an electric resistance heating element disposed therein whereby a regulated quantity of electric power is...
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4684428 |
Method of making a fusion pad
A fusion pad is produced by forming a spiral groove 22 in the pad upper surface. A wire 16 is fed from a reel 18 through a hole in the pad and secured to a terminal on the pad under surface. The...
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4684417 |
Process for the control of the welding time of an electrical welded union
Two tubes of thermo-plastic material are joined by a sleeve in an inner portion of which there is an electrical resistance coil, the ends of which are connected to terminals projecting from the...
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4675512 |
Electrically heat-recoverable article
A wrap-around heat-recoverable sleeve (1) suitable for providing environmental protection around pipes or cables (24) has self-contained electrical heating means powered through closure members...
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4670078 |
Process for heat-sealing thermoplastic conduits
A system for heat-sealing thermoplastic conduits involves a thermoplastic sleeve surrounding an electrically conductive heating wire arranged in a coil. A bridging conductor is located adjacent the...
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4659912 |
Thin, flexible, autoregulating strap heater
A simple, highly flexible, virtually massless, temperature autoregulating heater primarily useful for soldering has an energizing circuit that may be integral with or separate from the heater...
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4649641 |
Connector fitting with an electrical heating wire
A connector fitting in the form of a sleeve for use on synthetic resin pipes has heating wire let into its inner face for heating the sleeve material and the ends of the pipes to be joined so that...
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4650964 |
Electrically heated transfer line for capillary tubing
A heated transfer line for heating a small glass capillary tube is disclosed. The transfer line is small and removable yet highly efficient, capable of uniformly heating a glass capillary tube over...
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4645912 |
Pipeline heated by a diagonal feeding, band-form, electrical heat-generating apparatus
A band-form, electrically heat-generating apparatus having two parallel electrodes and resistance elements intervened therebetween over the entire length of the electrodes, and connected to both...
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4644140 |
Electric heating arrangement for spray nozzles
An electrically heated spray nozzle, such as for spraying plastics, includes a highly compressed tubular heating body wound about a spray nozzle as a plurality of coil windings. The heating body...
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4642155 |
Thermoplastic fitting electric heat welding method and apparatus
A method and apparatus for electrically heat welding a thermoplastic fitting having an electric resistance heating element disposed therein whereby a regulated quantity of electric power is...
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4636160 |
Device for tightening a coil on a cylindrical body
A device for tightening a coil on a cylindrical body. The device has a first anchor for connecting one end of the heater coil to the cylindrical body, and a second anchor for connecting the second...
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4628989 |
Device for heat recovery
Recovery of a heat recoverable article can be carried out without a flame by wrapping around the article a flexible bag and introducing into the bag a liquid of sufficient temperature and heat...
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4628190 |
Duct heater
A duct heater includes end brackets connected by frame bars. The end brackets are formed into a geometric shape whereby only corners of the bracket engage an inner surface of the duct. Assembly is...
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