Abstract: The stage assembly for use in a microscope comprises a mechanical stage having an opening therein, a stage support plate having an opening therethrough, a support for supporting the stage support plate in the opening in the mechanical stage, a device for heating/cooling or warming the stage support plate mounted to the stage support plate, a specimen chamber/coverslip assembly mounted on the stage support plate above the opening therethrough, a perfusion fluid preheater/cooler assembly mounted on the support plate, a perfusion fluid tubing extends through the preheater/cooler assembly and to a specimen chamber in the specimen chamber/coverslip assembly, and a conduit for withdrawing perfusion fluid from the specimen chamber.

Abstract: An electrically heated jacket for use on a video camera or the like which enables the camera to be used in cold temperatures. The jacket comprises a flexible member having heating elements embedded therein and which may be positioned around the camera and secured thereto by suitable connectors. The jacket conforms to the shape of the camera and has selectively closeable openings to provide access to various camera controls. The jacket is formed from a flat sheet of insulative material with a forward flap operable to selectively cover the lens on the camera. Flaps along opposing side edges of the sheet will wrap over the top of the camera to permit a handle on the camera to project from the jacket.

Abstract: A circuit is provided for activating a heating element to deice a lock cylinder of a door system. A handle switch is coupled to a door handle of the door system and is constructed to provide a signal when the door handle is moved in an unlatching position. The handle switch provides the signal so long as the door handle is in the unlatching position. The activator circuit measures the time that the door handle is in the unlatching position and, after the door handle has been in the unlatching position for a predetermined time interval, begins to provide electrical energy to the heating element. The activator circuit measures the time period that electrical energy is provided to the heating element and, after a predetermined interval, discontinues providing electrical energy to the heating element.

Abstract: An apparatus for warming medical instruments, such as a stethoscope, includes a wall mountable, multi-walled, vented housing having a front access opening closed by a hinged translucent panel and an open bottom. A reflective, flexible metal liner having a lower portion overlying the open housing bottom reflects radiant heat from an electric lamp heat source in the housing toward an instrument to be heated vertically positioned in a support formed in the lower portion of the liner and aligned with a slot in the lower portion leading to the access opening. The heat source is thermostatically controlled.

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 pins extending in sealed relation therethrough to provide electrically conductive inner and outer pin segments respectively connected to heat transfer members and an electric power source, the heat transfer members including a heating element and a support for the heating element which is independent of a novel electrical connection between the inner pin segment and heating element to insure stable electrical connection and a minimum of vibration.

Abstract: A system for controlling deflections of an elongate body transverse to a longitudinal axis of the body, the system including: a sensor mounted on the body for producing an output signal when the body experiences a deflection in at least one direction transverse to its axis; heating and/or cooling elements thermally coupled to the body at a location for heating or cooling the body in a manner to thermally deflect the body in a direction transverse to the longitudinal axis; and a control unit, connected between the sensor and the heating or cooling elements, responsive to the output signal produced by the sensor.

Abstract: A heating apparatus comprises a closed vessel having thermally conducting walls and containing a gas that is heated by one or more electrical heating elements in the vessel. The vessel is received in a duct through which air is blown. The air is heated by the heat transferred to the vessel walls by the gas in the vessel. Pressure and thermostatic switches in the circuit of the heating element communicate with the gas in the vessel and provide a double-safety, over-temperature power shut-off. The heating apparatus may be used to blow hot air into water in a tub through hoses leading to inlet openings or to an air distribution mat placed in the tub. The bubbles of hot air heat the water and produce strong agitation. A special raft receives the air distribution mat, which heats water in the raft by bubbling hot air through it. The heating apparatus can also be used for space heating, warming and drying towels and clothes, hair drying and grooming animals.

Abstract: A crib apparatus is arranged wherein the crib includes a crib rear wall, a forward crib wall, a headboard wall, and a foot board wall orthogonally mounted relative to a top floor, wherein the top floor is spaced from a bottom floor defining a mattress cavity therebetween, wherein the mattress cavity includes an entrance opening, with a door coextensively and pivotally mounted relative to the entrance opening. A mattress is slidably mounted within a mattress support plate, with the mattress support plate including a plurality of pivotal legs extending downwardly relative from the mattress plate for support of the mattress for cleaning and maintenance of the mattress during use. Modifications of the invention includes heated support cavities mounted within the cylindrical cavities for support of infant food and fluid nursing bottle members.

Abstract: A deicing apparatus includes a heat source for producing deicing heat at one location on the body of an object and a heat distributing arrangement for distributing the deicing heat to one or more surface areas to be deiced. The heat distributing arrangement comprises thin strips or channels of heat distributing material having a heat conductivity greater than that of the material from which the remainder of the object is formed. One end or a portion of each strip or channel of the heat distributing material is in contact with the heat source itself or in contact with a highly heat conductive potting material in which the heat source is set. Another portion of each strip or channel of heat distributing material preferably forms a portion of one of the surface areas to be deicd.

Abstract: A system for annealing a vessel (14) in situ by heating the vessel (14) to a defined temperature, composed of: an electrically operated heater assembly (10) insertable into the vessel (14) for heating the vessel (14) to the defined temperature; temperature monitoring components positioned relative to the heater assembly (10) for monitoring the temperature of the vessel (14); a controllable electric power supply unit (32-60) for supplying electric power required by the heater assembly (10); a control unit (80-86) for controlling the power supplied by the power supply unit (32-60); a first vehicle (2) containing the power supply unit (32-60); a second vehicle (4) containing the control unit (80-86); power conductors (18,22) connectable between the power supply unit (32-60) and the heater unit (10) for delivering the power supplied by the power supply unit (32-60) to the heater assembly (10); signal conductors (20,24) connectable between the temperature monitoring components and the control unit (80-86) for deli

Abstract: A vehicle air horn is disclosed which is provided with heating cartridges and a temperature sensing switch. The temperature sensing switch automatically turns the heating cartridges on and off at predetermined temperatures. This automatic heating facility enables the horn to remain operational at low temperatures in inclement weather when other unheated horns would be expected to fail.

Abstract: In a method of measuring a quantity of heat, the distance between the position of an end of an exposed fiber portion before heating and the position of the end after heating is measured, and the quantity of heat applied to the end of the exposed fiber portion is calculated based on the distance. When heat is applied to an end of an exposed fiber portion, the end is fused and is rounded due to surface tension. For this reason, the position of the end of the exposed fiber portion retracts from the position it occupied before heating by the volume required for rounding the end. This retraction amount corresponds to a quantity of heat applied to the end of the exposed fiber portion. Therefore, by meauring the retraction amount, the quantity of heat applied to the ends of the exposed fiber portion can be quantitatively measured.

Abstract: Apparatus for use in removing tile from a floor, the apparatus including a generally horizontally extending frame having a front end, a rear end and laterally opposing sides. Wheels are attached to the frame for rolling the frame across the floor, and a handle is mounted on the frame to steer it. Burner units mounted on the frame heat tiles below the burner units to loosen the tiles from mastic adhering the tiles to the floor. A tank mounted on the frame stores fuel for the burner units and a delivery system transports fuel from the tank to the burner units. A blade attached to the frame separates the heated tile from the floor as the frame moves across the floor.

Abstract: A stuffed toy with a heater is disclosed, which comprises a cover configured to resemble a predetermined object and a latent heat storage material disposed in the stuffing in the cover. When the latent heat storage material is heated it undergoes a transition from the solid phase to the liquid phase and stores a heat of dissolution. When it undergoes transition from the liquid phase to the solid phase, it gives off heat so as to maintain the temperature of the toy relatively constant for long periods of time.

Abstract: An incandescent heating unit uses a low wattage incandescent light bulb to warm the occupant of a metal chair. The light bulb generates heat which is absorbed by the metal and radiated to the occupant. A dispersion disk spaced between the bulb and the chair prevents the formation of a hot spot in the portion of the chair nearest the bulb.

Abstract: A cleaning machine, such as a washing machine, is provided in the bottom region of its wet chamber with an outlet and an intake connected thereto immediately above a feed pump, adjacent to which a heating section with an electric heating element located outside the wet region is provided, in such a way that a circulating duct is formed which leads through the wet chamber, the outlet and back to the inlet to the inlet side of the feed pump, in which the washing solution is carried in circuit form under thermosiphonic effect, so that the washing solution is heated and portions of the cleaning agent added to the washing solution and which tend to sink are dissolved.

Abstract: The heating unit for sealing vacuum electron tubes of the type having a glass stem, a glass exhaust tubulation extending from the stem and a plurality of electrically-conducting leads extending from the stem in a circular array around the tabulation includes a cylindrical heating coil within a coil recess of an electrically-insulating coil support. The coil recess circumscribes a central aperture within the coil support. The coil support has a first and a second surface with a coil-positioning lip projecting upwardly from the second surface thereof and circumscribing the central aperture. A hollow, substantially cylindrical, tubulation-locator having an outwardly extending flange formed in an outside surface thereof is disposed between the second surface of the coil support and a base plate. The locator also includes a centering collar formed in its outside surface and a tubulation centering aperture formed in the inside surface. A top plate is adjacent to the first surface of the coil support.

Abstract: A heated windshield wiper blade unit suitable for incorporation into existing windshield wiper assemblies. The unit comprises an elastic wiper blade, for example RTV rubber, and a flexible, fibrous carbon heating element disposed in the blade substantially along its entire length. The heating element contains a plurality of fibrous carbon strands coaxially surrounded by a heat shrunk polymeric tube. A live wire and a ground wire enter the blade and the heat shrunk polymeric tube at an intermediate point and extend through the tube to establish electrical contact with the respective first and second ends of the fibrous carbon strands. The wires preferably enter a side wall of the blade half way along its length and are insulated with a "tetrafluoroethylene polymer".

Abstract: A device is disclosed for preventing freezing of locking cylinders, which includes a heat conductive body member with an incandescent bulb removably mounted within an open-top internal recess. A temperature activated switch provides power to illuminate the bulb and thus heat the locking cylinder when the temperature reaches a predetermined limit, such as 0.degree. C. (32.degree. F.). A heat conductive spring thermally connected at its ends to the body extends around the locking cylinder to hold the body member against an underside of the locking cylinder whereby radiant and convective heat from the lamp may pass through the open top recess to heat the cylinder.

Abstract: An apparatus for maintaining thermal control of the temperature of a microscope stage is provided. A thin copper plate is arranged with a non-inductive serpentine heating element pattern controlled by a proportional power controller. A thermistor temperature sensing device is arranged to sense the temperature near the specimen container and to provide the sensed data to the controller. Proportional power control is accomplished by varying the ratio of "ON" and "OFF" power cycles as the desired temperature is approached.

Abstract: The emissivity of camouflage material is determined from the apparent body emperature measured by a radiometer, calibrated to indicate a temperature of a blackbody would emit corresponding to the radiation received therefrom; and the true temperature of the material and the true temperature at an infrared detector of the radiometer of a radiometer. Computation means is provided for calculating emissivity from the so measured temperatures and for displaying the result.

Abstract: The pH of low level radioactive waste liquid is adjusted to be substantially neutral and the liquid is passed to apparatus comprising an atomizer (11) having a turbine (15), air being heated by an electric heater (16) to the atomizer (11) to provide low level radioactive waste particles which may be encapsulated, e.g. in a resin. The apparatus may be transportable, and is claimed per se.

Abstract: Wire is flat braided into a straight component on a braiding machine, and carrier threads keep the component from deforming as it is drawn off the machine. The carrier threads are removed. The braid component is cut into straight strips with terminals connected to the ends of the strips. The braid component with leads extending therefrom is mounted to or in the surface of a high strain aerodynamic component. The axis of the heater is parallel to the direction of applied stress. The wires lie along directions of reduced strain.

Abstract: An extrusion die-set is disclosed for extruding plastic film, in which the nozzle-lips (6,8) are heated, for the purpose of allowing production speed to be raised without losing film-quality. The heaters include aluminum rings (62,82) embedded in grooves in the dies near the nozzle lips. The surfaces (66,67,86,87) of the ring that face away from the nozzle lips are cut away, so that heat transfer to the bulk of the dies (60,80) is reduced. The disclosed heaters eliminate the problem of hot-spots and cold-spots around the circumference of the nozzle. The nozzle lips can run several degrees hotter than the bulk of the dies, using the disclosed heaters.

Abstract: Uniform electrical heating of a circular, single crystal germanium window (18) uses its bulk resistance and pairs of electrodes (20) equally spaced about the window's periphery. The electrode pairs are sequentially switched at a rate high enough to avoid thermal switching transients.

Abstract: An automobile door lock warming device has a housing which surrounds the door lock cylinder on a conventional automobile door lock. A heating element is contained in the housing and also an electrical fan. A switch is mounted on the exterior of the automobile. In use, the user activates the switch which turns on the heating element and the fan, thus blowing warm air through the housing and onto the door lock cylinder. In a second embodiment, the housing includes a helical rib which swirls the warmed air around the door lock cylinder and exhausts the air through a plurality of ports which are spaced circumferentially around the keyhole. A pivotable cover for the keyhole and exhaust ports is provided.

Abstract: An electronic circuit for automatically controlling an electrically operated device on a motor vehicle, such as windshield wiper, fog lights, etc., for aiding driving during inclement weather includes a hygrometer having an electrical resistor with a resistivity which changes with respect to humidity located on a support base heated by an electric resistive heater on the support base and connectable to a substantially constant voltage power source. A threshold temperature detector located in the support base proximate the electrical resistor is electrically connected in series with the resistive heater for regulating the electrical energy to the resistive heater to maintain the support base and electrical resistor below a predetermined temperature such that the hygrometric sensor is not damaged.

Abstract: 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 track solidify at cold temperatures.

Abstract: Deposits and corrosion are to be avoided in a heatable diaphragm pump for smoke gases which are to be analyzed. A heatable pump head comprises a diaphragm chamber which is closed by a diaphragm. The diaphragm is driven by a motor through a connecting rod. The connecting rod is heated by controlled heating means and a temperature sensor. Transmission of measuring signals from the temperature sensor to a controller and the power supply to the heating means is permitted through U-shaped leaf springs.

Abstract: A liquid or gel filled pillow utilized for therapeutic purposes is formed from a pair of flexible casing of plastic or the like, one within the other, and being separated by a compressible electrically conductive foam material having a high resistance in its uncompressed slate and a low resistance when compressed. The facing surfaces of the casings are coated with a layer of highly conductive material in electrical contact with the foam. The inner casing is provided with a thermostatically controlled heating element for heating the liquid or gel contained therein. One terminal of the heating element is connected to the power supply through the conductive layers foam so that upon compression of the foam, as would be occasioned by a patient laying his head upon the pillow, there will result an electric current flow to the heating element due to the lowered electrical resistance of the foam.

Abstract: 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 consists of two bodies (1,2) placed against each other, the cocks being located between their faces and one of them (2) comprising the flow passages leading to the cock points and the other body (1), which is connected to a refrigerator, being provided with electric heaters located at the cock points and with the aid of which the cocks can be opened and closed.

Abstract: The present invention relates to a temperature adjusting device, particularly designed for processing cylinders of extruding, injecting, drawing and the like machines for processing plastics materials in general, which comprises a flexible body, of sleeve shape, which may be arranged on the outside of the plastics material processing machine: the body is housed in an outer duct, for conveying and discharging air in a substantially transversal direction with respect to the body itself.

Abstract: An air cooler having coolant tubes, a drain, a pair of coolant tube supports and a defroster for preventing condensate in the drain from freezing. The coolant tube supports include a vertical plate provided with a pair of horizontally spaced notches for supporting the defroster. The notches open to the lower edge of the plate and converge towards one another.

Abstract: In a monolithic ring laser, the ring laser crystal is mounted in a monolithic heated support structure including a layer of solder which is readily softened by elevating the temperature of the heater to permit adjustment and readjustment of the optical alignment of the crystal. The monolithic crystal support includes a block of thermally insulative material interposed between the heating element and the surrounds for thermally isolating the heater and laser crystal from the surrounds.

Abstract: A heating attachment for the mouthpiece of a musical wind instrument for heating the mouthpiece during outdoor playing of the instrument in cold weather. The attachment includes a sleeve which is adapted to be mounted on the mouthpiece and which includes an electrical heating element. The attachment also includes a source of electrical power and a switch for selectively connecting the heating element to the source of electrical power.

Abstract: A planer heater includes a thin metal plate having a relatively high specific resistance such as stainless, nichrome, nickel-chrome iron alloy, etc. The thin metal plate is subjected to etching-working to form a mesh-like heat generating body, opposite ends of which are provided with terminal portions for connection into an electrical circuit.

Abstract: A method of and apparatus for controlling the heat deformation of machine tools having a plurality of frames is disclosed in which the temperatures at symmetrical or opposite portions of the frames are measured, analyzed and then utilized to maintain the temperatures of the frames at the same temperature, or to maintain a constant temperature difference between the frame portions. The frame portions may either be heated or cooled to obtain the desired temperature.

Abstract: An evaporator coil heat exchanger assembly of a refrigeration system, such as a transport refrigeration system, which includes an electrical heating element for rapid defrosting of the evaporator coil with its attendant refrigerant carrying tubes and cooling fins. The electrical heating element is quickly attached to the collective edges of the cooling fins by a plurality of low cost spring retainer clips which have one portion which extends between two closely spaced cooling fins to hook a refrigerant carrying tube, and another portion which holds the heating element against edges of the cooling fins with a spring force. The spring retainer clips may be just as quickly removed should the heating element require replacement. Only three curved sections are required to be formed in a single length of wire to form the active elements of the spring retainer clip, and a handle portion is formed in the remaining portion of the single wire length.

Abstract: 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 plastic sheet ends overlap as they wrap around the pile. The ends are sealed and secured by a heatable strip extending between the overlapped ends of the sheet and which forms a fused plastic seam between the overlapped ends as the sheet is held tightly about the pile. A strap and a bar which presses over the heatable strip is provided for temporarily cinching the plastic sheet tightly about the pile and holding it while the heat fusing occurs.

Abstract: The display glass of an indicating instrument which is placed in front of a displaying front plate is heated by the absorption of radiating heat which is emitted by the heating of the displaying front plate by PTC electrical resistance elements which are advantageously fastened at the displaying front plate's rear side. By way of this device that is simple and cost-effective in regard to construction, fogging is removed on a display glass of an indicating instrument and a repeated fogging is reliably avoided.

Abstract: A collapsible mirror-heater unit for assisting in the application of ostomy pads is disclosed. A dual-faced mirror is pivotally mounted in a frame to expose either face and a heater is also pivotally mounted on the frame to be located in either of a stored or operative position. The device may be collapsed into its frame to provide a compact, box-like unit for storage.

Abstract: An improved defogging and deicing shield structure suitable for use as a face shield in combination with a protective helmet or for use in goggles having at least two spaced coextensive lenses. The inner surface of one lens is imprinted with an electrical circuit in a predetermined pattern. The resistance of the circuit being sufficient to generate heat effective to defog or deice the exterior surface of the other lens when the circuit is connected to a direct current power source.

Abstract: This invention provides for heating a brake assembly electrically to prevent it from freezing. More specifically this invention provides for heating electrically an aircraft multi-disk brake assembly.An electric resistance heating element 12 is adapted to form a heater 10 to provide heating to a brake stack 44. Heat may be transferred either directly to the brake stack 44 or indirectly by first heating a member of the brake assembly 36. This member in turn transfers heat to the brake stack.The heater 10 may be formed to fit within the cavity formed by a torque tube 26 wherein the heater abuts a substantial portion of the torque tube 26.Signals from a thermocouple may be used for activation and deactivation of the heater 10.

Abstract: A heating bed for therapeutic heat treatment. The heating bed includes a container for accommodating a sand filling which may be heated to a predetermined temperature via a heating device. The sand filling is covered by a cover which is preferably made of textile material.

Abstract: A handle of a portable power-driven machine such as a chain saw has an upper handle member and a lower handle member which are adjoined to each other to present the form of a handle. The handle also has an anti-slip rubber layer lining the outer surface of the lower handle member. The rubber layer has an upper end folded back on the upper ends of both side walls of the lower handle member to overlie the upper inner periphery of the lower handle member. The upper handle member has vertical downward projections which engage the folded end portion of the rubber layer overlying the upper inner periphery of the lower handle member.

Abstract: A moisture sensing detector of snow, sleet, ice and rain. The detector includes a sensing probe and coacting control circuitry for receiving the moisture signal from the probe and actuating associated equipment such as, for example, a railroad switch heater. The probe includes sturdy substantially elongated electrically charged aluminum electrodes spaced apart a very small distance (1/8" gap for example) by fiberglass strip insulation. Any moisture (even a drop of water) bridging the small gap completes a circuit between the electrodes which triggers the control circuit into actuating the railroad track switch heater or any like equipment. The electrodes are substantially elongated to provide a large sensing area. A heating unit is secured to one electrode to heat the entire length of the probe thereby melting any ice, sleet and snow (since they do not conduct an electrical current) thus permitting the probe to detect resultant moisture.

Abstract: A device for boring tunnels to accommodate electrical cables or conduits in the thickness of an insulative material of a composite wall panel exhibiting a layer of this material covered on one or both sides with a rigid facing sheet made up of a mobile system and a positioning and guiding device for the mobile system. The mobile system incorporates a boring member mounted at the end of a flexible member, and the positioning and guiding device incorporates a removable support featuring means for attaching it to the or one facing sheet, in line with an opening formed in the latter, and a bent guide conduit adapted to be inserted into this opening. This conduit enables the boring and flexible members to penetrate into the insulative material parallel to the facing sheet, in the required direction and to the required distance.

Abstract: A branch-off region at an end of a sleeve (2), enclosing for example a branch in a telecommunications cable, is sealed by positioning at the end of the sleeve (2) a clip (1) or a filling piece that forms terminal conduits (3), positioning a heat-activatable adhesive (5) in the end, and activating the adhesive by a heater such as an electrical heater.

Abstract: A heater for microscopes for heating a sample and maintaining the sample, which is mounted on a platform of the microscope, at a preset temperature during observation of the sample. The heater includes a platform for supporting thereon a sample container and a heater for heating at least part of the platform. A first heater box is fitted, open end down, over the platform and is connected thereto to form a first space which surrounds the sample container. A second heater box is then fitted over the first heater box in such a manner that a second space which surrounds the first heater box is formed. Heater means are provided for heating the second space. Accordingly, the temperatures in the first space and in the second space can be controlled independently to achieve better control over the temperature of the sample which is to be observed and to control condensation which may otherwise form in the sample holding container.

Abstract: .[.This invention relates to electric warming of towels, with.]. .Iadd.An electric warmer of towels has .Iaddend.a vertical member providing support to a series of spaced parallel horizontal members which receive, store and warm the towels. The heating element, being a line type heater, is enclosed within the vertical support member and is connected to any appropriate standard A.C. power source.