Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 7077611 | O-ring forming sealing washer A sealing washer includes a connecting portion and an inner edge portion disposed radially inward of the connecting portion. The inner edge portion terminates in an edge disposed in an edge plane that is offset from the connecting portion. The sealing washer may be ... | 07/18/2006 |
| 6851165 | Apparatus for retaining a poppet seal An apparatus and method for retaining a poppet seal with respect to a housing of an integrated pressure management system. The integrated pressure management system includes an aperture near a mouth of a housing, and the mouth includes a tip that is deformable so as... | 02/08/2005 |
| 6722661 | Multilayer gasket In order to provide a multilayer gasket, which comprises at least one first layer and one second layer and at least one joining device for joining the layers of the gasket to one another and in which the layers of the gasket are joined to one another in a simple and... | 04/20/2004 |
| 6634649 | Gasket, method of molding same, and cylindrical alkaline-manganese dioxide cell using same A gasket for use in a cylindrical alkaline-manganese dioxide cell is molded by injecting a molten resin into a mold assembly having a male mold having an injection gate formed in a cylindrical space and a projection formed in a narrow space and of which a... | 10/21/2003 |
| 6620361 | Method of manufacturing a composite seal A method of fabricating a fluid seal for sealing a relatively rotatable member, wherein the fluid seal has an elastomeric sealing member bonded to a PTFE insert. A wafer of PTFE material has a body portion and an end portion of a greater thickness than th... | 09/16/2003 |
| 6612030 | Multiple-ply resilient seal A seal features a first curved region generally concave in a direction of concavity, and a second curved region generally concave in the direction of the concavity of the first curved region. The second curved region is oriented within the direction of co... | 09/02/2003 |
| 6502833 | Metal C-shaped ring gasket A metal C-shaped ring gasket is constructed so that a satisfactory sealing property can be obtained even with a low clamping pressure. The metal C-shaped ring gasket is made of an austenite stainless steel and constructed so as to have a superficial rough... | 01/07/2003 |
| 6315299 | Apparatus and method of forming a tension resistant O-ring A method of forming a tension resistant O-ring is formed by extruding a length of precured elastomer with a coextensive central aperture; longitudinally dividing the elastomer; winding a strand of nonelastic synthetic material to form an endless ring havi... | 11/13/2001 |
| 6290234 | Shaft assembly having improved seal arrangement A sealed, rotatable shaft assembly includes a housing that defines a bore that extends from an area exterior to the housing to an area interior to the housing. A shaft is rotatably disposed in the housing about an axis of the bore. The shaft extends throu... | 09/18/2001 |
| 6260852 | Sealing device for an annular gap between two sealing surfaces of machine parts The invention relates to devices for sealing an annular gap between two sealing surfaces of machine parts with the aid of a ring which is in contact on these two sealing surfaces, in particular on extrusion machines, where this sealing is of significance ... | 07/17/2001 |
| 6139020 | Textured seal A seal is provided having a back surface that is generally perpendicular with a longitudinal axis of the seal and a sealing portion on the side opposite the back surface. The sealing portion is defined by first and second intersecting surfaces. A pluralit... | 10/31/2000 |
| 6044537 | Method of making a metal gasket A metal gasket is composed of a plurality of metal sheets superimposed one above the other and including a plurality of joints. Each of the joints includes a plurality of cut lines defining inner side edges of the metal sheets, and a bent portion located ... | 04/04/2000 |
| 6003877 | Insulated heat exhaust gasket An insulator gasket is disclosed having gasket sections folded toward each other to form an angled gap of 1-15 degrees. Openings in the gasket sections are partially aligned and allow passage of fastener devices during assembly. The gasket includes a comp... | 12/21/1999 |
| 5955020 | Apparatus and method for injecting corrosion control compounds into pipe flanges and the like An apparatus and method for injecting corrosion control compound into a crevice or void such as pipe flanges featuring a corrosion control kit comprising a syringe injector having a detachable nozzle, a corrosion control compound, pipe tape and a mantle f... | 09/21/1999 |
| 5934681 | Expandable gasket and method of making same A method of making an expandable metal gasket by forming an expandable core and spreading the core to an open condition with a parallelogram linkage tool, an expandable gasket body, and an expandable gasket precursor. The application also discloses a meth... | 08/10/1999 |
| 5730444 | Seal with embedded garter spring A fluid seal including a casing unit and an elastomeric lip body portion. Frustoconical air and oil side surfaces of the lip body meet at an inner diameter portion to form a fluid seal band contacting an associated shaft in use. A continuous, circumferent... | 03/24/1998 |
| 5728484 | Sealing gasket for a battery and a method for producing such a gasket It is an object of the present invention to improve reliability of a battery cell by preventing residual stress in the ting of a sealing gasket so as to provide a sealing gasket which does not crack. The object is achieved by a sealing gasket for a batter... | 03/17/1998 |
| 5711535 | Valve spool seal with one-piece housing ring having an arcuate side wall and a stepped side wall An annular sealing unit for multiway valves. It comprises an integral housing ring, wherein an elastic sealing element is arranged. The housing ring possesses a cylindrical holding wall for attachment in a recess in the valve housing with a press fit. Fur... | 01/27/1998 |
| 5678832 | Boron nitride seal and method of use Boron nitride formed to an optimum density and composition of soluble borates and oxygen forms a material which deforms under pressure and reforms to make a very low permeability seal. The boron nitride seal is formed by precompacting a boron nitride powd... | 10/21/1997 |
| 5655778 | Bellows self-threading seal A method and apparatus for improving a seal of a pliant tubular member on a cylindrical shaft. The seal is in the form of an articulating seal member positioned on a piston rod of a reciprocating pump and in this invention, is for use in a system that has... | 08/12/1997 |
| 5628519 | Oil seal ring of synthetic resin having angularly displaced injection point A seal ring having uniform dimensions and uniform composition over the entire length thereof. This is achieved by properly positioning the injection point for injecting a material when injection-molding the seal ring. More specifically, the injection poin... | 05/13/1997 |
| 5615479 | Method of manufacturing a spherical annular seal A spherical annular seal having a through hole in a center thereof and a partially convex spherical surface portion on an outer surface thereof, wherein an inner peripheral surface of the spherical annular seal defining the through hole is reinforced by a... | 04/01/1997 |
| 5615894 | Shaft seal ring and a method and a device of manufacturing same A shaft seal ring as well as a method and a device of manufacturing same. A shaft seal ring made of a PTFE compound comprises a sealing lip and a protective lip integrally formed therewith, wherein the sealing lip as well as the protective lip are provided wit... | 04/01/1997 |
| 5607168 | Seal incorporating a resilient sealing element A shaft seal includes a case defining an axial portion and a radial portion, and a resilient PTFE sealing member is secured to the case by an elastomeric material, such as rubber, in an injection molding process. The elastomeric material forms an outer ri... | 03/04/1997 |
| 5595697 | Method of manufacturing a sealing device A sealing device to be mounted between a member and a rotation shaft which can be rotated relatively to the member, includes an annular flanged portion formed of a resin and disposed to surround the rotation shaft, and extends in a radial direction of the... | 01/21/1997 |
| 5588350 | Manufacture of banded pistons A banded cylindrical piston for use in fluid cylinders is produced by hot-forming a relatively thin, flat washer made of polytetrafluoroethylene (PTFE) onto a grooved piston. A hot-forming sizing tube has a beveled entrance end on which the washer is init... | 12/31/1996 |
| 5588656 | Crankshaft seal having resilient portion embedded in rigid retainer A sealing structure for use in an automobile engine includes a retainer 1, a plurality of lips 2a, 2b, 2c, 2d and a metal ring 3. The retainer 1 has a main annular body made of a resin material. The lips 2a, 2b 2c, 2d are formed on the metal ring 3. After... | 12/31/1996 |
| 5573253 | Packing rings, method for production of the packing rings, and seal device using the packing rings A packing ring of a composite structure including a packing of expanded graphite and an annular mass of superposed sheets of expanded graphite is produced by a method including the steps of spirally winding a ribbon of expanded graphite into a roll, compr... | 11/12/1996 |
| 5564714 | Rubber-like molded product with support frame A rubber-like molded product with a support frame includes a support frame having a predetermined shape; a connecting member constituted by a thin film or connecting ribs and engaged with the support frame separably therefrom; and a rubber-like molded pro... | 10/15/1996 |
| 5556109 | Method of sealing and seal for a starter bar head to be used in a continuous caster There is provided a seal for a starter bar head to be used in a continuous caster. The seal extends into a gap provided between the starter bar head and the side walls of a continuous casting mold under direct contact of the side faces of the starter bar ... | 09/17/1996 |
| 5549105 | Subassembly of network of gas conduits and anesthetic apparatus comprising such a subassembly A subassembly constituted by a body and a cover (2), defines internally gas conduit portions (Ii) delimited by partitions of the body coacting with sealing strips (12) in grooves (11) of the cover (2) and formed and mounted in these grooves by ... | 08/27/1996 |
| 5515616 | Seal splitter gage A gage for splitting annular seals by establishing two points on a seal's outer edge for cutting lines, and planes through which the cuts should extend. The gage includes two pivotally connected arms equipped with collar assemblies. The collar assemblies ... | 05/14/1996 |
| 5513603 | Seal and fastener isolator system for a valve cover A seal and fastener isolator system for a thermoplastic valve cover that has the seal made of a silicone rubber and is integrally formed with the fastener isolator so as to allow the entire assembly to be manufactured in one molding operation.... | 05/07/1996 |
| 5510069 | Process for production of a flat gasket material The invention relates to a flat gasket material and to a process for the production thereof and of a flat gasket therefrom. In the process according to the invention the flat gasket material is preferably constituted by an indeterminate length sheet or we... | 04/23/1996 |
| 5476270 | Shaft seal and gasket assembly A seal assembly for a shaft extending out of a casing and, in particular, the crankshaft received in the crankcase of a motor vehicle includes a gasket receptacle in the form of a metal die casting having a passage opening for the shaft. A dynamic shaft s... | 12/19/1995 |
| 5435233 | Banded piston A piston for use in a hydraulic cylinder which is subject to sudden and extremely high shock load pressures and high temperature operating conditions is provided with a plurality of interlocking axially-spaced circumferential grooves. A relatively thin, f... | 07/25/1995 |
| 5412972 | Method of making a gasket The gasket and method of the present invention can be used for creating thinner surfaces on structures, including gaskets, without necessarily damaging such structures during formation, and without the need to resort to the undesirable practice of chemica... | 05/09/1995 |
| 5411609 | Section steel wire of oil ring A section steel wire for an oil ring for use in an internal combustion engine, consisting essentially of, by weight, 0.6 to 1.5% carbon, not more than 1.5% Si, not more than 1.5% Mn, more than 20% and not more than 25% Cr, and optionally containing at lea... | 05/02/1995 |
| 5395469 | Method of making an improved spirally-formed seal for shafts and valve stems A packing material for formation of a seal for a rotary or reciprocating shaft is disclosed wherein a core element is enveloped by a sheet of expanded graphite material. The core element is preferably formed of a wire mesh and solid graphite. The envelopi... | 03/07/1995 |
| 5393108 | Spherical exhaust flange gasket with interference fit A gasket for use on a exhaust connection between an exhaust manifold and an exhaust pipe includes a spherical sealing portion which mates with sealing portions on both the exhaust manifold and the exhaust pipe. The spherical-to-spherical-to-spherical cont... | 02/28/1995 |
