Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7240905 | Method and apparatus for sealing a joint gap between two independently movable structural substrates A system for sealing a joint gap between structural substrate panels such as walls, ceiling and floors making use of a sealing member including a mounting section fixedly secured to one of the surfaces and a covering member extending outwardly therefrom into contact... | 07/10/2007 |
| 7172371 | Method of sealing casings of subsurface materials management system Systems, components, and methods relating to subterranean containment barriers. Laterally adjacent tubular casings having male interlock structures and multiple female interlock structures defining recesses for receiving a male interlock structure are used to create... | 02/06/2007 |
| 7121785 | Retraction retainer system for biased turbine engine components A device, system, and method for securing a turbine engine seal in a retracted position enabling maintenance, assembly and disassembly of the turbine engine. The system can include a retainer arranged to retain the seal in a retracted position and constructed to fai... | 10/17/2006 |
| 6834725 | Reinforced swelling elastomer seal element on expandable tubular An apparatus and method used for sealing a wellbore. The apparatus includes a swelling elastomer disposed around an outer surface of the tubular body. The swelling elastomer is isolated from wellbore fluid in an annulus. However, upon the application of an outwardly... | 12/28/2004 |
| 6578851 | Gasket assembly for sealing mating surfaces A pair of substantially opposed mating surfaces are joined to each other and sealed in place by means of an electrically-conductive member which is placed in proximity to the mating surfaces. The electrically-conductive member has at least one element sec... | 06/17/2003 |
| 6354735 | Thermocouple assembly A thermocouple assembly includes a thermocouple; a plurality of lead wires extending from the thermocouple; an insulating jacket extending along and enclosing the plurality of leads; and at least one internally sealed area within the insulating jacket to ... | 03/12/2002 |
| 6352362 | Method of preventing leakage of a fluid along and through an insulating jacket of a thermocouple A thermocouple assembly includes a thermocouple; a plurality of lead wires extending from the thermocouple; an insulating jacket extending along and enclosing the plurality of leads; and at least one internally sealed area within the insulating jacket to ... | 03/05/2002 |
| 6273427 | Refrigeration sealing system for a refrigeration unit A refrigeration sealing system for a refrigeration unit includes a trap-process tube coupled with and in communication with a compressor of the refrigeration unit for receiving refrigerant from a refrigerant source. The trap-process tube defines a passage... | 08/14/2001 |
| 6220607 | Thermally conductive conformal media A thermally conductive medium includes a body with a first melting point and phase-changing material encapsulating a portion of the body, with the phase-changing material having a second melting point. The first melting point is greater than the second me... | 04/24/2001 |
| 6142483 | Gasket assembly for sealing mating surfaces A gasket assembly for securing a pair of surfaces together wherein an electrically conductive gasket base having a central opening is provided with a pair of layers secured to opposite sides of the gasket base, with the layers being a fusible alloy, a bra... | 11/07/2000 |
| 5725272 | Drain assembly for acoustic baffle system An acoustic baffle apparatus is provided for sealing a cavity of a vehicle body at a predetermined cross section of the cavity. The apparatus includes a piece of heat expandable sealing material that is formed in a shape corresponding to but smaller than ... | 03/10/1998 |
| 5531454 | Expandable gasket, sealed joint and method of forming same An improved expandable gasket, sealed joint and method of forming a sealed joint which includes a gasket having at least 5% by weight unexpanded or unexfoliated graphite. The graphite material is preferably a mixture of expanded and unexpanded graphite co... | 07/02/1996 |
| 5427386 | Protective seal for use in fluid flow lines and method therefor A protective seal and method for protecting flow line joints from leakage of fluid conveyed thereby when exposed to elevated temperatures, such as fire, employs the use of intumescent material and a channeling structure for channeling the intumescent mate... | 06/27/1995 |
| 5407214 | Fire barrier gasket seal A gasket seal comprises a hollow metallic annular member with hollow interior filled with a thermally expanding material and exterior surface surface thereof lined with a resilient layer of sealing material; wherein the contact pressure between the resili... | 04/18/1995 |
| 5137283 | Thermally conductive gasket device A gasket is formed by encapsulating a thermally conductive low melting temperature material or core in a plastic skin. The low melting temperature material conforms to the shape of the interface completely filling all voids once heated above its melting t... | 08/11/1992 |
| 5015001 | Low friction seal assembly A lubricant seal assembly adapted for installation in an annular clearance space between a shaft and a surrounding housing. The assembly includes inner and outer case members that can be press fit on the shaft and housing. An annular bumper element is arr... | 05/14/1991 |
| 4901395 | Self-sealing heat activated grommet According to the present invention an elastomeric grommet includes an axial extending central tubular portion of diameter less than the diameter of the compartment wall opening. A flange portion is integral with the central tubular portion and has a diame... | 02/20/1990 |
| 4889319 | Bakeable vacuum systems An apparatus and method providing a bakeable sealing means for a vacuum system, and thereby an improved bakeable ultra-high vacuum system; the apparatus comprising: a first sealing element composed substantially of an elastomeric material; a second sealin... | 12/26/1989 |
| 4836559 | Seal assembly with meltable metal binder layer A seal assembly for such applications as a dynamic machine having a rotary component which is mounted for rotation in a housing having an interior wall. A seal member is provided with an inner sealing surface and an outer surface. A coating of metal is el... | 06/06/1989 |
| 4813690 | Sealing member An elongated elastomeric sealing member is disclosed for sealing between a pair of adjacent spaced-apart panels. The preferred sealing member includes an elongated inner bead portion and one or more elongated flange portions extending generally laterally ... | 03/21/1989 |
| 4813687 | Gasket assembly An improved gasket assembly comprising a first gasket member, a second gasket member, and an intermediate metal plate interposed between and temporarily and slidably attached to the first and second gasket members. The intermediate metal plate may be atta... | 03/21/1989 |
| 4789164 | Sealing device A duct seal (1) especially for sealing about four cables, contains a spring (8) which when operated radially expands that part of the duct seal that is to seal to a wall etc (2). The cables are sealed by heat-shrink outlets (7) of the duct seal (1). The s... | 12/06/1988 |
| 4769166 | Expandable magnetic sealant Disclosed is a novel, magnetic sealant comprising a styrene blocked copolymer, a solubilizing agent, magnetic particles and a blowing agent which will, upon exposure to temperature, will cause the sealant to melt and be drawn toward the magnetically attra... | 09/06/1988 |
| 4733872 | Fusible packing for a supply port of an accumulator A temperature responsive fusible packing is inserted in a ring shaped space defined between the lower face of a bolt head and the bottom face of a recessed portion formed on the supply port of a gas chamber of an accumulator and then the bolt is tightened... | 03/29/1988 |
| 4703136 | Sealing body for feedthrough for at least one conducting member through a wall opening A feedthrough for a conductor in a wall opening which may be subjected to fire comprises to elastomeric parts including a hard part fitted into a soft part and together defining a conductor passage. The soft part presses against the wall opening. The hard... | 10/27/1987 |
| 4666164 | Method and means for sealing with heat-recoverable foam layer An aperture, for example a duct having a cable passing through it, is sealed by installing a laminate, comprising an adhesive layer, a heater layer, and a heat-recoverable foam layer, the thickness of which increases on heating, into the gap between the d... | 05/19/1987 |
| 4622251 | Non-combustible filler rod for providing fire tight joint packing A non-combustible construction product for sealing a joint formed between adjoined building panels for blocking the passage of flame therethrough including non-combustible, flexibly compressible packing material encased within a porous, non-combustible, f... | 11/11/1986 |
| 4500099 | Elastic supporting and sealing member with thermal foaming strip An elastic supporting and sealing member, for mutually supporting a first body and a second body, and for sealing the gap between the first body and the second body, includes a first portion and a second portion of wire net and a piece of thermal foaming ... | 02/19/1985 |
| 4489953 | Fire-safe seal for swivel joint A fire-safe seal for use in a swivel joint in a pressurized fluid system subject to fire risk, the seal having both a metal anti-extrusion ring and an annular resilient non-metallic seal member to provide essentially zero fluid linkage at normal operating... | 12/25/1984 |
| 4484750 | High pressure seal joint A joint includes two members with facing surface sections sealed together by a meltable seal material contained within a reservoir between the surface sections. A non-capillary recess in one of the members adjacent one surface section keeps the seal mater... | 11/27/1984 |
| 4474203 | Valve with pressure energized back seat sealing means A valve having a back-sealing capability provided by a pressure energizable sealing assembly which becomes operative independently of valve stem movement and valve element position for sealing between the valve casing (10, 22) and the valve stem (21) in t... | 10/02/1984 |
| 4470605 | Shaft seal assembly and method of making the same A shaft seal assembly for installation and operation in an annular space defined between first and second relatively rotatable machine components. The shaft seal assembly has a housing adapted to engage the first machine component, a runner ring surrounde... | 09/11/1984 |
| 4441721 | High temperature packer with low temperature setting capabilities A packer element design for use in well bores that may be at a relatively low initial temperature and be subsequently heated to much higher temperatures. High temperature packing material of asbestos fibers impregnated with Inconel wire is employed in pac... | 04/10/1984 |
| 4432465 | Fire rated closure plug A low heat transfer fitting to close an opening in a fire-rated barrier includes a cover plate, a pressure plate, a radially expandible annular gripping ring between the cover plate and the pressure plate, and adjustable fasteners between the two plates t... | 02/21/1984 |
| 4415169 | Seal for concentric tubular member A seal assembly employing a thermoplastic sealing element, such as polytetrafluoroethylene, for maintaining sealing integrity between inner and outer concentric tubular members is disclosed. Axial extrusion of the sealing element through a constricted pas... | 11/15/1983 |
| 4402516 | Fully consumable remotely operated seal A method for sealing ports, ducts and the like using a fully consumable mrial as the sealing medium and utilizing the consumable capability to provide remote removal of the seal without damage to the sealed areas and with no remaining obstruction in the ... | 09/06/1983 |
| 4354304 | Method of making intumescent seals A method of making an intumescent seal comprises: providing a tubular holder having a longitudinal bore or interior chamber defined by a thickened longitudinally extending portion of the holder contiguous with a relatively thin wall of the holder; filling... | 10/19/1982 |
| 4345738 | Fire safe seal A fire-safe seal for a valve having a metallic seat ring with a resilient seal ring in a leading face thereof to seal against a valve closure member. A thin, metallic flexible diaphragm is clamped around its outer edges to the body and around its inner ed... | 08/24/1982 |
| 4289157 | Valve with heat-responsive bearing assembly providing back seat arrangement The bearing assembly of a normally non-rising stem gate valve is provided with an annulus of fusible material. Upon subjection to a preselected temperature level, the fusible body melts out of the way, permitting the stem to raise slightly, making up a me... | 09/15/1981 |
| 4246304 | Internally slotted fire seal A fire-resistant seal for application to a structure, comprising a holder for securing to the structure, the holder comprising a tubular portion, a fire-resistant barrier material which swells under fire-conditions being retained within the tubular portio... | 01/20/1981 |
