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| Number | Title | Issue Date |
| 7314343 | Miniature manipulator for servicing the interior of nuclear steam generator tubes A manipulator for servicing tubes extending through a tube sheet having three major components: a base member, a block member, and a foot member. The base member has a holder for supporting tooling or inspection devices. The base member also has at least one gripper... | 01/01/2008 |
| 7024757 | Device and method for positioning flexible tubes into a core and articles made therefrom This invention relates to fabrication of tube bank style heat exchangers and similar assemblies. It provides a novel device and a method for presenting and feeding multiple relatively flexible tubes in a predetermined spaced apart manner, and subsequently threading ... | 04/11/2006 |
| 6745459 | Heat exchanging tube assembling apparatus for heat exchanger and assembling method thereof A heat exchanging tube assembling apparatus is adapted to a heat exchanger having an outer casing in which is arranged a partition plate formed with holes through which heat exchanging tubes, each having a U-shape in outer appearance, are inserted from an open end s... | 06/08/2004 |
| 6746201 | Bundle puller with adjustable length carriage frame A bundle puller having an adjustable length carriage frame is disclosed. The carriage frame includes a hinged section that can be rotated between a level or lowered position and a raised position. When the hinged section is raised, the length of the carriage frame i... | 06/08/2004 |
| 6729833 | Method and apparatus for extracting and installing heat exchanger bundles An apparatus and a method to remove and install horizontal heat exchanger bundles. A continuous track and a main frame having a carriage frame with vertical hydraulic cylinders are used and achieve the stability necessary to support and level a heat exchanger bundle... | 05/04/2004 |
| 6685423 | Method and apparatus for extracting and installing heat exchanger bundles An apparatus and a method to remove and install horizontal heat exchanger bundles. A continuous track and a main frame having a carriage frame with vertical hydraulic cylinders are used and achieve the stability necessary to support and level a heat excha... | 02/03/2004 |
| 6648584 | Heat exchanger bundle extractor A heat exchanger bundle extractor apparatus (1), comprises: a supporting base (2, 29, 40), onto which a hoisting column (6) is rotatably mounted; a guide frame (7), mounted onto supports (8) on the hoisting column (6), and controlled hoisting and lowering... | 11/18/2003 |
| 6507994 | Workpiece handling device A parts-mass compressing device includes a base stand having a table structure on which a mass of vertically standing raised workpieces are disposed. A stopper plate is fixed to one end of said table structure and a moving plate is movable toward and away... | 01/21/2003 |
| 6389682 | Heat exchanging tube assembling apparatus for heat exchanger and assembling method thereof A heat exchanging tube assembling apparatus is adapted to a heat exchanger having an outer casing in which is arranged a partition plate formed with holes through which heat exchanging tubes, each having a U-shape in an outer appearance, are inserted from... | 05/21/2002 |
| 5562400 | Self-propelled lifting apparatus A self propelled tube bundle extractor includes a mainframe which has four hydraulically actuated wheel assemblies for propulsion and steering. An extraction frame is mounted on the main frame and is operable to translate in three directions, up and down,... | 10/08/1996 |
| 5403145 | Street legal, mobile, truck mounted tube bundle pulling apparatus The invention relates to a street legal mobile mounted tube bundle pulling apparatus which is moveable from a lifting position to a travelling position. A longitudinal track is attached to the bed of the vehicle. A sled which is contiguous with said track... | 04/04/1995 |
| 5322410 | Tube bundle extractor A heat exchanger tube bundle extractor having an improved sled and motive means operable to move the tube bundle into or out of its shell. A fixed screw shaft is provided on the chassis, and a rotatable drive nut on the sled. The drive nut is threadedly r... | 06/21/1994 |
| 5203072 | Detachable crane- or boom-operated heat exchanger tube bundle extractor A heat exchanger tube bundle extractor capable of being used either suspended from a crane or while mounted onto a rigid extendible boom. The extractor features brackets for attaching of the extractor to cables suspended from a crane. The extractor can al... | 04/20/1993 |
| 5169281 | Detachable crane- or boom-operated heat exchanger tube bundle extractor A heat exchanger tube bundle extractor capable of being used either suspended from a crane or while mounted onto a rigid extendible boom. The extractor features brackets for attaching the extractor to cables suspended from a crane. The extractor can also ... | 12/08/1992 |
| 5123806 | Oil cooler tube bundle positioning device An oil tube bundle positioning device (26) for supporting and restraining oil cooler tube bundles (10) so that they can be safely oriented from one position to another, e.g., from a vertical position to a horizontal position, for cleaning and servicing. T... | 06/23/1992 |
| 5032054 | Aerial bundle puller An aerial tube bundle puller for extracting a tube bundle from a heat exchanger is provided, comprising a cradle supporting a carriage frame and a power source, a sled, attachable to a tube bundle, with a hydraulic powered screw drive to propel the sled o... | 07/16/1991 |
| 4869638 | Aerial bundle puller An aerial tube bundle puller for extracting a tube bundle from a heat exchanger is provided, comprising a cradle supporting a carriage frame and a power source, a sled, attachable to a tube bundle, with a hydraulic powered screw drive to propel the sled o... | 09/26/1989 |
| 4718377 | Device for placing a cylindrical body, especially a sleeve, in a tube of a steam generator A steam generator having a tube sheet, tubes ending in the tube sheet, a chamber adjoining the tube sheet having an access opening formed therein and a device disposed in the chamber for inserting a sleeve into one of the tubes in a plurality of partial i... | 01/12/1988 |
| 4666365 | Tube bundle pulling apparatus A device and method for removing and reinstalling tube bundles from and into heat exchanger shells. The device features a portable base with a pivotally mounted vertical telescoping column. A bundle support member is movably attached to one side near the ... | 05/19/1987 |
| 4575305 | Truck mounted tube bundle pulling apparatus The apparatus for removing and reinserting tube bundles into heat exchanger shells features an over the road vehicle having a bed. A vertical telescoping column is rotatably mounted to the rear of the bed. A bundle support member having a longitudinal axi... | 03/11/1986 |
| 4571820 | Device for disassembling and reassembling a main steam isolation valve of a nuclear reactor A device for disassembling and reassembling a main steam isolation valve which is extended at an angle from a main steam pipe extended from a nuclear reactor. The disassembly and reassembly of the isolation valve which requires a high degree of accuracy c... | 02/25/1986 |
| 4547963 | Apparatus and method for inserting tubes into a heat exchanger frame The heat exchanger frame is mounted on arcuate cradles on longitudinal rails so it may be angularly rotated and longitudinally moved, and locked in position. Each baffle is supported, and by preference the tube sheets are vertically adjustably supported. ... | 10/22/1985 |
| 4543711 | System for automatically inserting U-tubes of heat exchanger or the like Disclosed is a system for automatically successively inserting a plurality of U-shaped heat transfer tubes into holes of support members of an equipment such as a heat exchanger. The system has fixing means for removably fixing the support members such th... | 10/01/1985 |
| 4437216 | Method of manufacturing a heat exchanger for cooling and heating purposes A method and apparatus for manufacturing heat exchangers for cooling and heating purposes from substantially rectangular tube elements alternating with surface-enlarging members in the form of thin pleated metal strips being advanced, pressed against each... | 03/20/1984 |
| 4392524 | Apparatus for removing a tube core from and inserting same into a heat exchanger The apparatus is used in combination with a heat exchanger having a horizontally elongated and longitudinally removable tube bundle. The apparatus comprises an elongated vehicular base provided with wheels and capable of rolling on the ground in a predete... | 07/12/1983 |
| 4382329 | Tube insertion machine This invention relates to a tube insertion machine, and more particularly to a machine which efficiently inserts heat exchange tubes into holes in opposed end plates and middle plates of shell and tube type heat exchangers.... | 05/10/1983 |
| 4380854 | Assembly apparatus An apparatus for assembling cooling tubes and fin elements in the manufacture of heat exchangers, particularly radiators for motor vehicles, comprises stations for feeding the tubes and the fin elements to grooves in a rotatable drum. A tube and a fin ele... | 04/26/1983 |
| 4380106 | Assembly apparatus An apparatus for assembling cooling tubes and fin elements in the manufacture of heat exchangers, particularly radiators for motor vehicles, comprises stations for feeding the tubes and the fin elements to grooves in a rotatable drum. A tube and a fin ele... | 04/19/1983 |
| 4299531 | Carriage for supporting a tube bundle on a tube bundle puller A carriage comprises a frame having load-bearing and guide rollers to enable it to roll longitudinally of a tube bundle puller while supporting a tube bundle. On each of two sides of the frame the carriage has two links which are commonly pivoted at one e... | 11/10/1981 |
| 4104790 | Pipe installing apparatus for large heat exchangers Mounting arrangement for insertion of tubes into tube plate apertures of the walls of large heat exchangers, especially in wide condensers and in large power plant coolers, comprising a cross slide device fitted with a thrust means, guiding channels align... | 08/08/1978 |
| 3958698 | Pipe bundle extracting/inserting device For withdrawing a bundle of pipes from a heat exchanger and for inserting such bundle the required tractive forces should be exerted on the bundle in a direction in line therewith by means of a key. In order to engage the pipe bundle at its front end and ... | 05/25/1976 |
