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| Patent # | Description |
|---|---|
| US-4,493,994 |
Detecting the condition of a sheet A method of detecting the condition of a rectangular sheet (8), comprising feeding the sheet, e.g. by belts (2, 4), through a checking station (adjacent to... |
| US-4,493,993 |
Apparatus for optically detecting ink droplets Ink jet printers include orifices which may become clogged or otherwise inoperative. This can cause printing defects which may go undetected for a substantial... |
| US-4,493,992 |
Adapter circuit for trackball device An adapter includes a program-controlled microprocessor provided with input means adapted to be coupled to the output of a trackball-type position control... |
| US-4,493,991 |
Techniques for locating beams within large area detectors Methods are shown for deducing the point of impingement of a beam, such as particle or electromagnetic beam, on a planar detector which is much larger than the... |
| US-4,493,990 |
Apparatus for automatically adjusting a deflection unit An apparatus for automatically adjusting the characteristic of a deflection unit, illustratively of the type used in laser recording equipment. A reference value... |
| US-4,493,989 |
Container end-code redemption scanning A method and apparatus for reading coded information formed on the lid of a carbonated beverage container. The coded information takes the form of spaced linear... |
| US-4,493,988 |
Odometer using an electric motor disposed within annular figure wheels In a highly compact odometer an electric motor which drives a mechanical display thereof, is disposed within the set of annular figure wheels used in the display... |
| US-4,493,987 |
Counter A counter including a housing which is made from a continuous plastic extrusion. End caps which rotatably support the counter barrel shaft fit telescopically... |
| US-4,493,986 |
Pistol grip electrical brazing tool A pistol grip brazing tool utilizes an insulative frame to mount a pair of elongated support elements, one fixed and the other reciprocating. The support... |
| US-4,493,985 |
Welding sleeve A welding sleeve for connecting pipes formed of thermoplastic material includes an electrical conductor in the form of an electrical resistance wire. The... |
| US-4,493,984 |
Temperature control device for fixing heat source of copying machine A temperature control device for a fixing heat source of a copying machine includes circuits for supplying power to the fixing heat source in synchronism with... |
| US-4,493,983 |
Current detector in combination with an electrical apparatus A device for incorporation into the power supply circuit of an electrical apparatus comprising (a) a switch which is movable from one condition to another on... |
| US-4,493,982 |
Holder apparatus for heater element Apparatus for removably holding a heater element having at least one end with an electrical contact. The apparatus includes a body of heat and electrically... |
| US-4,493,981 |
Boil dry protection system for cooking appliance A power control arrangement for a cooking appliance incorporating an automatic surface unit for automatically detecting the occurrence of a boil dry condition... |
| US-4,493,980 |
Power control arrangement for automatic surface unit A power control arrangement for an automatic surface unit in a cooking appliance which enables the user to select Warm, Simmer, Boil and Fry cooking modes and to... |
| US-4,493,979 |
Control circuit assembly for heating elements in cooking plates A control circuit assembly, includes a cooking plate having at least two individual cooking regions being electrically connectible in common for cooking... |
| US-4,493,978 |
Serving dish with heating means A serving dish having a heater, and a method for assembling the dish. An electric heater including a resistance element enclosed in a heat conducting and... |
| US-4,493,977 |
Method for heating semiconductor wafers by a light-radiant heating
furnace Disclosed herein is a method for operating a light-radiant heating furnace which includes a main heater capable of irradiating light onto an object to heat it up... |
| US-4,493,976 |
Pyrolytic oven cleaning system A cooking oven of the heat-cleaning type in which substantially all of the energy for heating the oven to heat-cleaning temperature is initially supplied by the... |
| US-4,493,975 |
Hang-up hair dryer An electric appliance safety system including a hand-held appliance, a power input for receiving electric current, a two-pole switch for activating the... |
| US-4,493,974 |
Snap-fit sheet metal cover for portable oil-filled radiators and method
of manufacture An oil filled electric radiator supporting structure is provided having a supporting frame structure including castors supporting the same. An oil filled... |
| US-4,493,973 |
Flow controlled electrode type liquid heater An electrode type liquid heater includes a tank having an inlet and an outlet disposed so that in normal operation of the heater the tank is partially filled... |
| US-4,493,972 |
Electrically heated apparatus employing a PTC heater for liquifying a
rod of binding material An apparatus for liquifying a rod of binding by application of heat includes a die-cast aluminum heating member having an elongated conical first channel... |
| US-4,493,971 |
Hot wire type electric arc welding torch A hot wire type electric arc welding torch includes a wire heating unit which has a first guide hole therein disposed substantially parallel to a welding torch.... |
| US-4,493,970 |
Slag and fume collector for air carbon-arc cutting and gouging torches A method and apparatus for collecting molten metal and/or slag together with fume generated by the air carbon-arc cutting and gouging process. The method and... |
| US-4,493,969 |
High-frequency arc striking device and auxiliary electrode of an
electric welding or cutting arc A high frequency-high voltage generator supplies current, on one hand, to a first arc striking circuit connecting a main electrode to an auxiliary electrode and,... |
| US-4,493,968 |
Adaptive welder with laser TV-scanner The invention pertains to a welding system having automatic groove tracking and adaptive groove filling capabilities. Data produced by a coordinated laser spot... |
| US-4,493,967 |
Rigid support for laser machining apparatus A laser machining apparatus is disclosed as including a bed lying on a floor surface for supporting a source of a laser beam with respect to a work piece... |
| US-4,493,966 |
Internal mandrel used in an operation of butt joining two lengths of
tubing by welding An internal mandrel (22) cooperating in the operation of joining two successive lengths of tubing by welding, and it is characterized in that this mandrel... |
| US-4,493,965 |
Method and apparatus for predicting and controlling the quality of a
resistance spot weld During a weld period the weld parameters are monitored and data representing the weld resistance curve and the power curve are acquired and stored for analysis... |
| US-4,493,964 |
Method of joining electrically conductive members A method of joining a plurality of electrically conductive members is disclosed which comprises the steps of placing the metal members in stack between a pair of... |
| US-4,493,963 |
Mandrel machine A method and machine for weld cladding, particularly for welding material to a cylindrical plate, such as hardfacing or corrosion resistant alloys normally... |
| US-4,493,962 |
Apparatus and method to suppress oxidation during resistance welding In an apparatus and a method of at least partially suppressing oxidation of can components or the like during resistance roller welding with the aid of an inert... |
| US-4,493,961 |
Apparatus for electrohydroblasting trimming of castings An apparatus for electroblasting trimming of castings, in which castings being trimmed are placed in a bath containing a working fluid, the bottom part of the... |
| US-4,493,960 |
Ceramic blinders for a microwave oven quartz lamp Disclosed is a half-tube of ceramic paper inserted into the quartz tube of a microwave oven quartz lamp. The ceramic paper acts as a reflector, permitting... |
| US-4,493,959 |
Keyboard with improved key design permitting tilting about either side In a keyboard comprising keys (1) arranged in recesses of a supporting pl (2) and electric contacts of a contact plate (6) disposed below the keys (1) a tilting... |
| US-4,493,958 |
Illuminated membrane switch An illuminated membrane switch assembly lighted by a contained rearwardly positioned bulb unit. A membrane switch is actuated by a small reciprocable transparent... |
| US-4,493,957 |
Multimodal pressure switch The conical tip of a load applying member (42) acts against one side (136) of a movable plate (120). A spring (84) urges the conical tip of a biasing member (88)... |
| US-4,493,956 |
Impact switch A resettable impact switch is disclosed having a non-conductive body with a cavity therein. A pair of terminals extend from opposite sides of the body and have... |
| US-4,493,955 |
Control mechanism for an electric motor assembly A control mechanism in combination with an electric motor assembly in which an output shaft having a cam surface is connected to the electric motor through a... |
| US-4,493,954 |
Rotary switch with internal rotor interconnecting circuit paths for
surface contacts Rotary switch includes a dielectric rotor with die cast conductive circuit paths therein which connect various surface contacts thereon. Rotor comprises first... |
| US-4,493,953 |
Switch A switch housing includes a body and a cap. The body contains terminal recesses housing respective terminal plates for fixed and movable contacts. A plurality of... |
| US-4,493,952 |
Membrane switch having integral switch tail insulator Membrane switch assembly comprises a substrate, a flexible membrane, and a separator between the substrate and the membrane. The substrate has circuit conductors... |
| US-4,493,951 |
Device for use in testing a modem coupled to a telephone line by modular
connectors A device for use in testing the wiring integrity and/or troubleshooting system faults in a modem and/or an associated telephone line which are coupled together... |
| US-4,493,950 |
Loudspeaker telephone A line powered loudspeaker telephone is provided with a lightweight headset and microphone as well as a loudspeaker and second microphone. A first switch is... |
| US-4,493,949 |
Parallel operation of telephone equipment on a digital loop Disclosed is a digital station apparatus, such as a digital telephone set, capable of being operated in parallel on a subscriber's digital loop (e.g. in an... |
| US-4,493,948 |
Transparent secondary information transmission system for an information
transmission system A transparent secondary information transmission system for a primary information transmission system is disclosed. The system includes at least one local... |
| US-4,493,947 |
Security device utilizing conventional telephone lines A security device connected to telephone lines and to at least one sensor comprises a monitoring circuit for monitoring at least one sensor to determine a status... |
| US-4,493,946 |
Device for connecting together the outer conductors of two coaxial pairs A device for connecting together the outer conductors of two coaxial pairs with coaxial conductors (3) and outer conductors (4), said device including two metal... |
| US-4,493,945 |
Thermal protective system An envelope system for protecting a substrate from fire or other thermal extreme. The system includes a screen, which surrounds the entire substrate and which is... |
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