Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7309464 | Steerable magnetic wheel carriage A lightweight remote controlled carriage apparatus having a frame means composed of a first frame member and a second frame member interconnected by a transverse frame member having a transverse frame member axis; the transverse frame member having a pivot point int... | 12/18/2007 |
| 7250132 | Apparatus for enabling fabrication of accurate angular cuts in a pipe An apparatus for enabling fabrication of accurate angular cuts in a pipe includes a first fixture adapted to be clamped on a pipe and adjusted relative to the pipe so as to define a substantially planar surface aligned with a desired cut angle relative to a longitud... | 07/31/2007 |
| 7216408 | Flexible rail multiaxis machine tool and method A flexible rail machine tool couples temporarily to a structure by vacuum cups and positions a tool head at any desired point over an area. The toolhead can perform operations such as drilling, bolt insertion, and acquisition of dimension data. The flexible rail can... | 05/15/2007 |
| 7185407 | Side rack rail system apparatus and method A rail system for positioning a toolhead above a workpiece uses a rack cut into one edge of the rail and driven by a pinion gear whose shaft is approximately perpendicular to a workpiece to couple the rail to the toolhead. Multiple rollers placed on the toolhead all... | 03/06/2007 |
| 7036599 | Method and apparatus for cutting underwater structures A method for the cutting of underwater structures below the level of the sea bottom on which they are installed, comprises determining an ideal plane of cutting, having considered the characteristic features of the structure i.e. its morphology and its positioning o... | 05/02/2006 |
| 7003893 | Method and apparatus for universal shape cutting of pipes The present invention pertains to a method and apparatus for obtaining templates used in pipe end cutting essential in fabricating saddle and mitered pipe connections. The template is made by an array of z-shaped pins arranged radially to form the shape of a stepped... | 02/28/2006 |
| 6696012 | Ring gear mounted rack adjustable torch arm carriage assembly with out-of-round capability A torch carriage assembly for use in bevel cutting a pipe has a ring gear which rotates concentrically about the pipe longitudinal axis. A shaft extending perpendicularly from the ring gear carries a torch arm block assembly which positions the cutting to... | 02/24/2004 |
| 5853655 | Magnetic wheel guided carriage with positioning arm A remote controlled welding and cutting carriage, with an automated positioning arm, to facilitate welding and cutting of flat and curved surfaces including plate and pipe without the use of track, band or similar carriage positioning or guidance mechanis... | 12/29/1998 |
| 5655209 | Multilayer ceramic substrates having internal capacitor, and process for producing same Process for producing multilayer ceramic substrates using greensheet technology and thin dielectric ceramic greensheets for miniaturization purposes. The process avoids the screening of the thin greensheets by forming self-supporting fusible particulate m... | 08/05/1997 |
| 4757977 | Universal chain guide for orbital pipe machines An orbital pipe machine guiding system to guide the machine around the circumference of a pipe has a link chain having first and second ends and a length equal to at least the circumference of the pipe and has means to attach the link chain to itself arou... | 07/19/1988 |
| 4716271 | Apparatus for positioning a tool with respect to a cylindrical work piece An apparatus for circumferentially and longitudinally positioning a weld head or other tool with respect to the surface of a pipe. A first annular ring is affixed to the pipe. A longitudinally movable annular indexing track is also circumferentially fitte... | 12/29/1987 |
| 4570542 | Ribbon rail systems An elongate deformable ribbon drive rail for carrying a working apparatus having a toothed drive gear and support mechanism is provided in the form of a first narrow elongate strip of metal of width to carry the support mechanism, a second narrower strip ... | 02/18/1986 |
| 4490909 | Travelling pipe cutter A travelling pipe cutter for cutting of pipe having a frame defined by a pair of spaced, interconnected plates with guide rollers thereon for movably supporting said frame for travel around a pipe, a gear box positioned between said frame plates and havin... | 01/01/1985 |
| 4469310 | Automatic centering pipe beveling machine An automatic centering pipe beveling machine having a yoke with two leg portions extending from an apex, the angle between the legs of the yoke being X° and the yoke being positionable on a cylinder with the legs in engagement with the cylinder exterior ... | 09/04/1984 |
| 4460162 | Torch guiding system for flame cutting of pipe An improved guide for cutting-off and/or bevelling pipe with a torch using a ring-shaped member with circular guide-surfaces fixed around the pipe, includes the ring-shaped member circumference forming axially spaced first and second rim-and-ledge tracks ... | 07/17/1984 |
| 4440383 | Pipe cutting apparatus Apparatus for cutting a pipe tube turn has a frame that may be fixed on the pipe and mounts a cutting torch for movement orbitally of the tube turn's longitudinal axis and in a plane that is at right angles to such axis. The cutting torch is stabilized an... | 04/03/1984 |
| 4414041 | Guide system for flame cutting of pipe A guide system for a gas cutting torch used to bevel the ends of pipe in preparation for welding includes a circular sleeve with integral spacer bars coacting with a radial screw for fixing the circular sleeve coaxially around a pipe to be bevelled; the s... | 11/08/1983 |
| 4405384 | Method and apparatus for salvaging large pipe elbows An apparatus is disclosed for re-claiming used or damaged tube turns and rendering them equivalent to new tube turns with correctly oriented openings. A salvaged tube turn is temporarily fixed to a platform in a position such that the longitudinal axis of... | 09/20/1983 |
| 4399197 | Cutting pipe with a cutting torch This disclosure is directed to the cutting of steel pipes and tubes by utilization of a special flexible metal guide in conjunction with a cutting torch. Use of the special flexible metal guide improves the steadiness of the torch, thereby producing a mor... | 08/16/1983 |
| 4377276 | Self-propelling bevel fusion-cutting machine A self-propelling bevel fusion-cutting machine for beveling pipes comprises a machine main body which holds a fusion-cutter, such as a burner, for effecting the bevel fusion-cutting of the end face of a pipe, traveling guide rollers which roll on the pipe... | 03/22/1983 |
| 4368876 | Self-propelling bevel fusion-cutting machine A self-propelling bevel fusion-cutting machine for beveling pipes has a machine main body which holds a fusion-cutter, such as a burner, for effecting the bevel fusion-cutting of the end face of a pipe, traveling guide rollers which roll on the pipe end f... | 01/18/1983 |
| 4357002 | Pipe cutting machine A pipe cutting device for use in cutting pipe and the like for forming saddle cuts or pass through cuts, in the pipe, having a set of rollers to carry the pipe to be cut between upstanding supporting members of the machine and having adjustable torches mo... | 11/02/1982 |
| 4345745 | Pipe cutter for end cuts of tubular material A pipe cutter for forming end cuts in pipe, having a pair of annular torch holding members and an annular gear track connected to said members, and an annular vertically adjustable supporting member in which said torch holding members are concentrically m... | 08/24/1982 |
| 4330076 | Method for replacing bolster rings The disclosure concerns a procedure for replacing a worn bolster ring on a freight car truck bolster which utilizes a motorized circle cutting and welding machine which rests upon the bolster and is centered by supporting structure positioned by locating ... | 05/18/1982 |
| 4312498 | Fixture for cutting tube turns A fixture for selectively positioning a tube turn for acetylene torch cutting thereof to a desired included angle includes means for supporting a tube turn of particular dimension and for selectively positioning the tube turn relative to a vertical or hor... | 01/26/1982 |
| 4260869 | Traveling welding carriage Traveling carriage apparatus, adapted to travel along a track disposed about or upon an object, to carry a device such as a welding torch to do work upon the object or upon other apparatus supported thereby. The apparatus is hinged end-to-end, preferably ... | 04/07/1981 |
| 4243868 | Orbital arc-welding apparatus of split construction Gas-shielded, arc welding apparatus for securing a tube to the sidewall of a pipe or the like and facilitating removal of the welding apparatus after completion of the weld includes a locating fixture adapted for clamping engagement with the pipe and for ... | 01/06/1981 |
| 4216945 | Apparatus for automatically controlling the cutting of pipes, plates and the like An automatic control means is provided with a pipe cutting and welding apparatus. The control means has a computer which controls the operation of the motors operating the main carriage, the tool heads, and the bracket arms for cutting or welding pipes, p... | 08/12/1980 |
| 4202535 | Control device for cutting torch This invention relates to a control device positioning for a cutting torch, and especially to a device for controlling a cutting torch at angular cutting particularly in pipes and at pipe recessing operations.... | 05/13/1980 |
| 4143862 | Apparatus for cutting pipes, plates and the like An apparatus for cutting welding or otherwise working pipes, plates and the like, in which a tool is mounted for rotatable movement at an angle to the surface of the workpiece. The tool is carried by a carriage which slidably supports a bracket having a f... | 03/13/1979 |
| 4091514 | Subsea machine tool A subsea machine tool for preparing the end of a bare piece of pipe in a subsea location for receiving an overfitting coupling and includes a support assembly adapted for raising and lowering in a body of water. A pipe clamp is attached to each end of the... | 05/30/1978 |
| 4053145 | Cutting torch guide A guide for a cutting torch providing means for effecting circular cutouts in large vessels or large diameter pipe without the need of a lay-out other than fixing a working point and providing multiple adjustments so that cuts may be made of the desired d... | 10/11/1977 |
| 4051342 | Continuous welder A continuous welder automatically moves from one joint to the next along a pipeline of pipes to be welded together, and automatically adapts to pipes of different diameter. At each joint, a wire-fed welding nozzle revolves around the pipes to weld the pip... | 09/27/1977 |
| 4007705 | Apparatus for treating a cylindrical object Apparatus for temporary positioning about a cylindrical object such as an underwater pipeline or the like for mounting and indexing a tool across the surface of the pipeline for treating same.... | 02/15/1977 |
| 3975003 | Torch type pipe cutter A pipe cutter including a wheeled carriage which mounts a torch and rolls circumferentially about a pipe so that the torch can progressively make a cut thereabout. The carriage may be held snugly to the pipe by a chain or rope and take-up mechanism, and b... | 08/17/1976 |
