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| Number | Title | Issue Date |
| 4109307 | High power factor conversion circuitry A high power factor conversion circuit suitable as a ballast circuit for lamps includes a full-wave rectifier coupled to an AC potential source and providing a pulsating DC potential. A high frequency inverter is coupled to a load circuit and to a feedbac... | 08/22/1978 |
| 4097784 | Quadrupole convergence circuit In a color cathode ray tube deflection apparatus having a deflection yoke with horizontal, vertical and quadrupole windings and affixed to a color cathode ray tube, a quadrupole convergence circuit includes a quadrupole winding coupled to a source of subs... | 06/27/1978 |
| 4080631 | Supportive means for a cathode ray tube Improved bracket means for supporting a cathode ray tube in a display enclosure. The improvement resides in the formation of the seating portion of the bracket which enables the implosion-inhibiting tensioned banding surrounding the tube to make substanti... | 03/21/1978 |
| 4075476 | Sinusoidal wave oscillator ballast circuit A sinusoidal wave oscillator ballast circuit includes a tuned oscillator coupled to a DC rectifier means coupled by a power factor correction circuit to an AC potential source. The oscillator is coupled to an inductor means including a first and second tr... | 02/21/1978 |
| 4074219 | Mounting means for a circuit breaker A mount for a circuit breaker for mounting the circuit breaker in a holder of the type typically used for fuses and a method of making the mount is disclosed. Engaging means such as metallic screw threads or a bayonet ferrule are bonded to the envelope of... | 02/14/1978 |
| 4073558 | Cathode ray tube fabricating process A process for fabricating cathode ray tubes having an envelope which contains an electron gun assembly and unwanted water vapor includes the steps of loading the cathode ray tube onto an exhaust machine, heating the cathode ray tube to an internal tempera... | 02/14/1978 |
| 4074344 | High power factor AC to DC converter circuit A high power factor AC to DC converter circuit includes a rectifier circuit coupled to an AC potential source and providing a full-wave rectified pulsating DC potential to a switching regulator circuit with a radio frequency current filter connected in ci... | 02/14/1978 |
| 4070695 | Circuit for simultaneous display of separately broadcast video signals A circuit system for a television receiver, said system operating to repl a changing quadrant of the picture of a main transmitted program with an equivalent-size sector of a second transmitted program.... | 01/24/1978 |
| 4069938 | Returnable shipping container A returnable shipping container includes top and bottom closure members each having inner indentations and an outer affixed metal member forming a peripheral slot with collapsible first and second body members formed to fit into the bottom and top slots a... | 01/24/1978 |
| 4070640 | High resolution torodidal deflection yoke A deflection yoke for a cathode ray tube includes a core of magnetic material having front and back end portions, a front crown having a substantially flat outer surface normal to the core member axis and a slotted outer circumferential surface, a back cr... | 01/24/1978 |
| 4068370 | Mounting means for a circuit breaker and method of making the same A method for making a mount for a circuit breaker for mounting the circuit breaker in a holder of the type typically used for fuses and a method of making the mount is disclosed. Engaging means such as metallic screw threads or a bayonet ferrule are bonde... | 01/17/1978 |
| 4064412 | Cathode ray tube base A base for a cathode ray tube includes at least one tube pin isolating means associated therewith to provide arc prevention between adjacent tube pins which can have up to a 12 KV potential difference therebetween.... | 12/20/1977 |
| 4063288 | Vertical synchronizing circuit A vertical synchronizing circuit wherein a counter counts pulses at twice the horizontal deflection rate and provides a vertical output pulse at a predetermined count is shown. A synchronism or mode detector causes the circuit to switch to a driven mode w... | 12/13/1977 |
| 4061943 | Cathode ray tube with supported conductor extending through exhaust tubulation An electrical connective improvement is provided for a multiple-element electron gun assembly in an electron tube. The improvement relates to an isolated electrical conductor extending within the envelope from one of the elements of the electron gun assem... | 12/06/1977 |
| 4061941 | CRT electron gun assembly An improvement is provided in a cathode ray tube plural beam in-line electron gun assembly having applied beam currents of differing levels. At least one of the gun structures in the assembly incorporates discrete electrode modifications or differentiatio... | 12/06/1977 |
| 4061163 | Method of filling electrochemical cells with electrolyte Electrochemical cells containing highly reactive anodes are filled with a volatile electrolyte under controlled pressure conditions in a controllable pressure chamber. The cells are placed in the chamber with the fill port down and the chamber evacuated t... | 12/06/1977 |
| 4061945 | Shielded getter support on rotor-supported antenna The invention provides an improvement in the means for supporting a container of effusive material located on the terminal end of an antenna-type positioning member for use in a cathode ray tube. The supporting structure is comprised of a rotatable member... | 12/06/1977 |
| 4056300 | Terminal connector with stress relief A terminal connector having a strip carrying pressure fitted terminals is shown. Openings or notches between the lands carrying the pressure fitted terminals relieve stresses in the strip to reduce longitudinal extension and bowing of the strip.... | 11/01/1977 |
| 4053906 | Control system for an optical scanning exposure system for manufacturing cathode ray tubes In an optical scanning exposure system for manufacturing cathode ray tubes having a faceplate with an inner surface layer of photosensitive material and an adjacent apertured mask wherein the exposure system includes a light source providing a light beam,... | 10/11/1977 |
| 4053904 | Overlap and overscan exposure control system In an optical scanning exposure system for manufacturing cathode ray tubes having a faceplate with an inner surface layer of photosensitive material and an adjacent apertured mask wherein the exposure system includes a light source providing a light beam,... | 10/11/1977 |
| 4053903 | Scanning rate and intensity control for optical scanning apparatus In an optical scanning exposure system for manufacturing cathode ray tubes having a faceplate with an inner surface layer of photosensitive material and an adjacent apertured mask wherein the exposure system includes a light source providing a light beam,... | 10/11/1977 |
| 4052735 | Modulated fleshtone and tint correction circuitry A fleshtone and tint correction detector DC coupled to at least two of the first, second, and third demodulator stages of a color television receiver provides a control signal in response to a shift in differential potential output from the demodulator st... | 10/04/1977 |
| 4051544 | Fail-safe ground fault receptacle circuit A fail-safe ground fault receptacle circuit includes a ground fault circuit interrupter inductively coupled to a load, directly coupled to one potential source terminal, and coupled by way of a series connected solenoid winding and contacts of a circuit b... | 09/27/1977 |
| 4050763 | Base and socket means for an electron tube Electrical connective means are provided for effecting the external connections to a multi-element electron tube having a closure portion wherein the sealed exhaust tubulation has a conductive lead extending therefrom. The connective means includes a base... | 09/27/1977 |
| 4050081 | Exposure area control for an optical scanning system for manufacturing cathode ray tubes In an optical scanning exposure system for manufacturing cathode ray tubes having a faceplate with an inner surface layer of photosensitive material and an adjacent apertured mask wherein the exposure system includes a light source providing a light beam,... | 09/20/1977 |
| 4049991 | Longitudinal rib embossment in tri-apertured, substantially planar electrode The invention relates to an improved one-piece electrode member for use in an in-line multi-beam cathode ray tube electron gun assembly. The improved electrode has a plurality of spaced apart in-line apertures individually oriented in cup-like depressions... | 09/20/1977 |
| 4049990 | CRT in-line gun electrode having strengthening ribs The invention relates to an improved planar electrode member for use in an in-line multi-beam cathode ray tube electron gun assembly. The improved electrode is a substantially planar one-piece member having a plurality of apertures therein. The side porti... | 09/20/1977 |
| 4050080 | CRT screen exposure device utilizing improved light means An improvement is provided in a cathode ray tube screen exposure device wherein both the intensity and the shaping of the exposure radiation is improved by employing two conjunctive sources of radiant energy. The alpha source is positioned in a substantia... | 09/20/1977 |
| 4047292 | Process for forming an electrically insulating seal between a metal lead and a metal cover A metal body, for example, a cover for hermetically sealed electrochemical cells, is relatively flexible and electrically conductive. An aperture is provided within the body to receive an electrically insulating material, such as glass, which mounts a ter... | 09/13/1977 |
| 4047424 | Apparatus for non-destructive leak testing of primary electrochemical cells Apparatus comprising a conveyor adapted to move a plurality of test receptacles along a given path. Spaced along the path are means for adding a test fluid to the receptacles; first means for checking a desired parameter of the test fluid; means for inser... | 09/13/1977 |
| 4045775 | Continuous DC control circuit A continuous DC control circuit includes a memory capacitor coupled to a sampling means providing an output signal representative of the charge thereon and to a charge and discharge circuit means connected to a switching means coupled to a potential sourc... | 08/30/1977 |
| 4045711 | Tuned oscillator ballast circuit A fluorescent lamp ballast circuit includes a tuned oscillator coupled to a pulsed DC potential source and to a transformer having a first winding directly connected to the oscillator and in series connection with a capacitor to form a series resonant cir... | 08/30/1977 |
| 4042858 | Television receiver protection circuit A protection circuit for a television receiver which disables the television receiver by disabling the horizontal deflection circuit in response to fault conditions is shown. The protection circuit detects excessive current drain by a low voltage supply, ... | 08/16/1977 |
| 4042857 | Cathode ray tube convergence system A cathode ray tube convergence system includes a cathode ray tube with a plurality of electron beam sources formed to provide electron beams which are underconverged inside of and converged outside of the screen of the tube and a deflection yoke associate... | 08/16/1977 |
| 4042961 | Electro-optical transducer system In an electro-optical transducer system employing a cathode ray tube having a substantially frusto-conical body terminating at its wide end in a viewable face plate and at its narrow end in a cylindrical neck and having a deflection yoke substantially per... | 08/16/1977 |
| 4040708 | Cathode ray tube base A base for a cathode ray tube includes a rubber washer having apertures of a size to fix over the glass nubbins surrounding the bottom of the tube pins where they exit from the neck of the tube. The base also includes a walled rim which contains the washe... | 08/09/1977 |
| 4040707 | Cathode ray tube base A base for a cathode ray tube includes at least one tube pin isolating means formed within the rim of the base to provide arc prevention between adjacent tube pins which can have up to a 12 KV potential difference therebetween. The isolating means compris... | 08/09/1977 |
| 4030790 | Process for fabricating lenses for manufacturing cathode ray tube screen structures A process for fabricating lenses for use in manufacturing cathode ray tube screen structure wherein a matrix of data points is selected on the viewing screen of the cathode ray tube and a light source is positionally located at each of the data points by ... | 06/21/1977 |
| 4029988 | CRT in-line electron gun assembly An improvement is provided in a cathode ray tube plural-beam in-line electron gun assembly having applied beam currents of differing levels. At least one of the gun constructions in the assembly incorporates discrete electrode structural modifications whe... | 06/14/1977 |
| 4027270 | Class ABC amplifier circuit A high efficiency linear amplifier which operates in a class AB mode so long as the output potential is less than a first potential source and switches to a second potential source and output electron device when the output potential exceeds the magnitude... | 05/31/1977 |
