Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7036674 | Closure for a pressure vessel and method A closure assembly 10 contains positive and/or vacuum pressure within a pressure vessel 16 having a neck 12. A circumferential locking member 22 supported on a door 20 locks the door to the neck, and is radially moveable between an... | 05/02/2006 |
| 6700088 | Sealing apparatus A sealing apparatus for effecting a temporary seal against an elongate object. The object is placed in a chamber(17) and supported between inlet and outlet apertures in the walls of the chamber. A resilient seal (32) is placed at the point where the objec... | 03/02/2004 |
| 6648339 | Seal assembly, its use and installation A method and apparatus for installing seals in an interference fit with a comating sealing surface by initially stretching the seal installed in a groove to reduce its cross-sectional thickness perpendicular to a comating sealing surface. The stretched se... | 11/18/2003 |
| 6471217 | Sealing assembly A sealing assembly for attaching pliable tubes to rigid connecting members, for high pressure, low temperature service, which seals by compressing a sealing wafer around the pliable tubes. The pliable tubes pass through holes in the sealing wafer. As the ... | 10/29/2002 |
| 6422574 | Water seal for quick repair and flow control This invention relates to a more serviceable seal assembly of the above type, particularly adapted for applications in the cooling systems of internal combustion engines. The seal assembly of this invention comprises an annular ferrule, an elastomeric sea... | 07/23/2002 |
| 6231051 | Cable sleeve consisting of a socket pipe having at least one transversely divided end member A cable sleeve consisting of two seal members with adjustable cable entry openings and an integrated cable clamping apparatus. The adjusting in the cable entry opening occurs by removal of concentric adjusting rings, wherein the number of adjusting rings ... | 05/15/2001 |
| 5538261 | Mechanical heat-exchange tube sealing system A sealing system for heat exchangers of the type having a plurality of vertically positioned heat tubes extending through a heat tube sheet for exchanging heat between the interior of the plurality of heat tubes to the surrounding atmosphere, the sealing ... | 07/23/1996 |
| 5193616 | Tubing hanger seal assembly A tubing hanger assembly having a metal-to-metal seal assembly for sealing the annulus between the tubing hanger assembly and an outer casing hanger assembly. The metal-to-metal seal assembly includes a static metal-to-metal seal for sealing with the tubi... | 03/16/1993 |
| 5149105 | Method and apparatus for repairing vessels This invention relates to a method and an apparatus for sealing a port of a vessel, which apparatus comprises: (a) a seal for forming a gas-tight seal with the port to close off the port, (b) a chamber; and (c) a chamber sweeping gas for sweeping the cham... | 09/22/1992 |
| 5072073 | Cable sealing method and apparatus Method and apparatus are provided for sealing an open end of a sheathed cable. After removing a length of insulating jacket, the open end of the cable is placed in a pressure block and a viscous sealant material is injected into the block and into the ope... | 12/10/1991 |
| 4993724 | Wall feedthrough fitting A feedthrough fitting for sealing around at least one conduit extending longitudinally through a cutout in wall at a transverse spacing from an inner surface of the cutout has an elastomeric one-piece seal having a pair of longitudinally oppositely direct... | 02/19/1991 |
| 4965409 | Cable entry connection of an electric power cable to a submersible machine A cable (1) entering a submersible machine, such as an electrically driven pump, a turbine etc., is surrounded by a collar (3) of a rigid material, and the collar (3) is secured to the machine shell (2) by bolts (4). Two sockets (5) and (6) of an elastic ... | 10/23/1990 |
| 4913464 | Tubular joint with seal An improved tubular joint between two tubular members having their mating ends with inner sealing surfaces tapering outward in the direction toward the other tubular member and with a sealing ring having outer sealing surfaces for engaging the inner seali... | 04/03/1990 |
| 4903972 | Device for sealing an enclosure containing an expandable fluid, especially within an electrical connection assembly A sealing device for an enclosure containing an expandable fluid, particularly for high-voltage connectors, ensures fluid-tightness over a broad temperature range and provides a safety function by accommodating variations in volume of the fluid by the use... | 02/27/1990 |
| 4836558 | Bulkhead seal A seal is provided around one or more supply lines, such as pipes, wires or cables, extending through an aperture in a bulkhead. A heat recoverable tubular article having a radially extending flange is recovered onto the supply line. A resilient annular m... | 06/06/1989 |
| 4826217 | Apparatus and method for sealing a tube joint A joint between a pair of coaxial tubes which extend into a pressure vessel from a surface is sealed using a sleeve-like housing which surrounds the joint to be sealed. An upper fluid-tight seal is formed between the longer of the tubes and the housing. A... | 05/02/1989 |
| 4810832 | Sealed cable connector A sealed cable connector includes a plug or coupler with a sleeve extending over the cable end and surrounding a strain relief ring, contoured annular seal and a thrust collar. The seal includes an outer ring and an inner ring which are connected with eac... | 03/07/1989 |
| 4758028 | Firewall seal A firewall seal in accordance with the present invention comprises a one-piece sheet of flexible fireproof material folded to form at least a two-ply seal component. Aligned openings are provided in each ply. At least one opening in each ply of the sheet ... | 07/19/1988 |
| 4741199 | Testable cable entry gland A method of sealing an electrical cable (2) into a wall (1) utilises a cable entry gland (3) having axially extending sleeves (3a), and the cable gland (3) is sealed to the cable (2) by means of shrink-down sleeving (9) extending over the sleeve portions ... | 05/03/1988 |
| 4717159 | Method and apparatus for seating and sealing a pitot tube type flow meter in a pipe This invention relates to a method for seating a pitot tube type flow meter against the remote wall of the pipe in which it is being installed and subsequently sealing same within the tubular fitting through which it enters the pipe, such method comprisin... | 01/05/1988 |
| 4655159 | Compression pressure indicator A compression pressure indicator includes a compression member which is disposed within a termination and is constructed such that when exposed to a pressure above a predetermined pressure a portion of the compression member protrudes from the termination... | 04/07/1987 |
| 4622436 | Plug assembly and method for encapsulating a cable within a conduit A plug assembly for encircling a cable and encapsulating it within a conduit includes a first and second ring members, each of which is formed of resilient material and has an inner wall conformable to a circumferential portion of the cable's outer surfac... | 11/11/1986 |
| 4432395 | Pipe part with socket provided with longitudinally extending channels The invention relates to a pipe part with a socket being provided with longitudinally extending channels. The channels extend into the wall of the socket. The socket engages a J-shaped retaining ring which forms with the socket a recess for retaining the ... | 02/21/1984 |
| 4428591 | Plastic pipe provided with a groove A plastic pipe comprises an inner wall and an outer wall, being integral with longitudinal partitions betweem them and bounding longitudinally extending channels and a circumferential, helically or non-helically extending groove, which groove has been for... | 01/31/1984 |
| 4344461 | Pipe part with socket provided with longitudinally extending channels Pipe part with socket being provided with longitudinally extending channels, said channels also extending in the wall of the socket, said socket being provided with an annular groove, formed by sealingly pressing the walls of the channels onto each other,... | 08/17/1982 |
| 4334993 | Potted-typed seal with stress relief and method of making same In a potted-type seal for sealing an opening in a relatively rigid housing stress-relief means is provided to prevent excessive shrinkage-induced stress between the compound and the housing. The stress relief means includes a relatively flexible periphera... | 06/15/1982 |
| 4323252 | Gland seal system for use with a methanation reactor A methanation reactor to be used preferably in an integrated urea-ammonia process for methanizing carbon oxides is disclosed in which the catalyst bed and an underlying heat exchanger of the tube-bundle type make up a unit mounted centrally of the reactor... | 04/06/1982 |
| 4309568 | Bushing for electrical leads An electrical bushing is provided to facilitate the passage of electrical conductor leads from thermocouples or the like through a pressure barrier. The bushing includes a casing and a deformable, resilient, elastic plug which is disposed in a central con... | 01/05/1982 |
| 4270775 | Device for sealing the place of penetration of a pipeline in the wall of a submerged structure An axially flexible sealing device connecting two pipeline ends which comprises a number of sealingly connected annular members, each annular member including an inner cylindrical member, two spaced apart outer cylindrical members, and separate flexible r... | 06/02/1981 |
| 4208055 | Method and device for sealing the place of penetration of a pipeline in the wall of a submerged structure An axially flexible sealing device connecting two pipeline ends which comprises a number of sealingly connected annular members, each annular member including an inner cylindrical member, two spaced apart outer cylindrical members, and separate flexible r... | 06/17/1980 |
| 4193604 | Means for carrying a cable through a wall Means for carrying a cable through a wall, for instance through the wall of the motor of a submerged pump, said means comprising a sealing rubber ring encircling the cable and which is tightened up with an annular sleeve to give a watertight seal between ... | 03/18/1980 |
| 4188675 | Conduit plug An improved lavatory drain plug includes a split hub structure, normally separated axially, upon which a cylindrical sealing member is mounted. Bringing the hub together exerts an outward radial force on the sealing member while the rim adjacent the hub e... | 02/19/1980 |
| 4168394 | Electric penetration assembly An electric penetration assembly for passing electrical conductors through the wall of a pressure vessel has at least one hermetically sealed electric feed-through conductor surrounded by an insulator. The insulator is symmetrical about an axis parallel w... | 09/18/1979 |
| 4103942 | Seal for submersible pipe swivel A submersible large diameter pipe swivel is provided with seal means which is designed and adapted to allow small radial and axial relative movements (wobble) between the pipe and the swivel joint, while maintaining full integrity of the seal and which, b... | 08/01/1978 |
| 4078834 | Wall duct assembly A wall duct assembly is disclosed comprising a duct piece or unit having arranged on its outside diameter retaining grooves for sealing structures. The sealing structures can be adjusted through the aid of pressure rings to provide effective sealing of th... | 03/14/1978 |
| 4061344 | Fitting for penetration through fire rated barriers Penetrations or passageways through fire rated or fire resistant walls, floors, partitions, and ceilings are frequently necessary to provide for present or future pipes, cables or conduits. A fitting placed in the penetration provides a seal to prevent th... | 12/06/1977 |
| 3990490 | Liquid-dispensing nozzle assembly and sealing device An improved liquid-dispensing nozzle and more specifically, an improved vapor recovery means for a nozzle comprising a vapor collector surrounding a portion of the discharge spout in spaced relation thereto, one end of which is sealed to the upper portion... | 11/09/1976 |
| 3945648 | Fluid tight seal and method of making same A resilient corrosion resistant multi-layered sealing ring member has a wrinkled outer peripheral sealing surface and a compressed, inner cylindrical wall portion. The method for forming this ring comprises wrapping a number of layers of a readily deforma... | 03/23/1976 |
