Abstract: A multiple split ring clamp for securing a printed circuit board on a cathode ray tube, in which the clamp first split ring has overlapping jaws and teeth on each end of the jaws, wherein the jaws and teeth are adapted to engage and hold the clamp on the cathode ray tube, and wherein the clamp has a second ring and stand-off which is adapted for removably securing a printed circuit board on but spaced apart from the first ring and cathode ray tube. The first split ring may be connected to but independent from the second ring and standoff so that movement of the clamp will not affect the position of the stand-off.

Abstract: A clamp for securing a printed circuit board on a cathode ray tube, in which the clamp has a split ring with overlapping jaws and teeth on each end of the jaws, wherein the jaws and teeth are adapted to engage and hold the clamp on the cathode ray tube, and wherein the clamp has an stand-off which is adapted for removably securing a printed circuit board on but spaced apart from the cathode ray tube. The split ring may be connected to but independent from the standoff so that movement of the clamp will not affect the position of the stand-off.

Abstract: Disclosed is a deflection yoke comprising: a fastening band of a ring shape assembled on an outer periphery of a neck portion in a coil separator by a fixing manner, provided for being extended and contracted; a pair of flanges bent and extended from both ends of the fastening band, on which a through hole is formed; a yoke clamp for generating fastening force by tightening of a bolt for passing through a pair of through holes, then being tightened by a nut; a bending portion projected on an outer side along the periphery of the fastening band, whose object contact plane for coming in contact with an outer periphery of the neck portion is divided into at least two or more.

Abstract: A video shield for a monitor is disclosed, which includes a video shield engaged at a rear end portion of the electron gun and having a predetermined shaped through hole through which the electron gun passes and having a plurality of snap holes formed around the through hole, a bracket being separable from the video shield wherein a circle hole is formed at a portion corresponding to the through hole, a plurality of displaceable distal members are formed on an inner surface of the circle hole at a certain distance from each other and are protruded in the front direction and pass through the through hole and surrounds an outer surface of the electron gun, and a plurality of snap members are protruded at a portion neighboring with the circle hole and are engaged with the snap holes, a first means for fixing the video shield at the electron gun by pressing the outer surfaces of the displaceable distal members at an outer surface of the electron gun by a snap method, and a second means for stably fixing the video

Abstract: A method and apparatus for securing a deflection yoke onto a cathode ray tube includes forming pockets having deformable, resilient inner walls along a circumferential surface of the deflection yoke. When the deflection yoke is mounted on the cathode ray tube, the inner walls deform slightly to conform to a contact portion of the cathode ray tube. The position of the deflection yoke with respect to the cathode ray tube it then adjusted into proper alignment. Once the deflection yoke and cathode ray tube are properly aligned, fast curing epoxy is poured into each of the plastic pockets, wedging the deflection yoke permanently into its desired orientation on the cathode ray tube. The pockets can either be integrally formed with the deflection yoke or they can be manufactured and attached to the deflection yoke in a separate operation.

Abstract: The deflection unit has a yoke ring mounted on, and secured to, a coil assembly comprising deflection coils carried on a support. The yoke ring (22) is secured using a flow process in which the coil assembly is rotated about a vertical axis and flowable adhesive, e.g. polyurethane resin, is directed at one end (28) of the yoke ring such that the adhesive (30) flows over its outer surface (24) to its other end, forming a protective coating, and onto an adjacent part (20) of the coil assembly. The adhesive flows also over a substantial portion of the inner surface (23) of the yoke ring in the gap between the yoke ring and the coil assembly providing extensive bonding (32) between the yoke ring and the coil assembly which reduces unwanted noise effects from the unit in subsequent operation.

Abstract: A cathode ray tube package includes a cathode ray tube assembly and a housing assembly including a deflection coil and/or at least one focus coil. The cathode ray tube assembly includes a collar (31) aligned with the electron beam, being arranged to mate with a mounting collar (41) carried on the housing assembly. The provision of the collar (31) enables the cathode ray tube assembly to be easily replaced at the end of the cathode ray tube's life within the housing assembly without the need for realignment of the coils.

Abstract: A neck attachment structure of a cathode ray tube comprising a retainer mounted on one side of a shield case assembly for inserting and fixing a circuit board; and a locking band rotatably coupled to the retainer for preventing the loosening of the neck enables the neck to be fixed to the circuit board by applying an incremental tightening force by rotating the locking band. The neck is fixed to the circuit board by soldering and then attached to the shield case assembly. The locking band ensures that the neck is firmly fixed on the circuit board and eliminates the occurrence of cracks at the soldered junction experienced in the prior art, thereby enhancing product reliability.

Abstract: The fastening of a picture tube (1) in a cabinet (2) of a TV set, a bracket (13) and a support (4) of the cabinet is provided with mutually cooperating sawtooth arrangements (6, 21) such that, when the bracket is inserted into the support, the bracket is blocked in a direction opposed to the insertion direction (23). The bracket has a wall portion (16) which forms an abutment for a fastening hook (12) of the picture tube. A compensation of tolerances in picture tube dimensions is obtained by this construction.

Abstract: A printed circuit board coupling device for use with a cathode ray tube is disclosed in which a coupling device is attached to one side of the circuit board by fastening devices. The coupling device includes a holder having generally ring shaped arcuate ribs extending from a support plate thereof. A support aperture is formed in the center of the ring shaped arcuate ribs and receives the base of the neck to encompass and fasten the center of the base, while fastening tabs and clips are integrally formed on the support plate to engagedly secure to the side of the circuit board, thereby evenly distributing the weight of the circuit board.

Abstract: A picture tube and lens system are combined to form a picture display device for use in a projection device. The lens system is mounted in an extension of the tube envelope.

Abstract: A device for simply and precisely fixing a deflection yoke to a Braun tube in such a manner that it does not permanently affix the yoke to the Braun tube but permits the location and fixing angle of the yoke with respect to the Braun tube be easily changed as required. The device includes a holder, coupled to a separator, and a plurality of wedge type cams rotatably mounted on the holder. The holder is provided with a plurality of mounts for rotatably supporting the wedge type cams respectively, a plurality of releasable fixing members for fixing the cams at their adjusted angles, and connection bands extending between the mounts for connecting the mounts together. The wedge type cams not only adjust the yoke fixing angle for compensation of mis-alignment of electron gun but also releasably affix the deflection yoke to the Braun tube. In another embodiment, the wedge type cams may be substituted by pulley type cams which are rotatably mounted on the holder.

Abstract: A color display tube system having an electron gun producing three co-planar electron beams which are non-convergent, i.e. parallel or divergent. A convergence element located at a distance from the electron gun and coaxial with the tube axis then produces convergence of the electron beams at the display screen by generating a static 45.degree. 4-pole field. This combination reduces growth of the scanning beam spot in the horizontal direction at the ends of the horizontal axis, which is a problem encountered with electron guns which are convergent.