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 |
| 7036824 | Device for the float mounting a sealed housing A device for float mounting a sealed housing around a rotating, deflecting shaft. A sealed housing is connected to a static part in such a way that it can yield radially as well as rotate around a shaft axis at least to a small extent. ... | 05/02/2006 |
| 7017913 | Axial shaft seal An axial shaft seal disposed between a housing wall and a rotating shaft includes an outer ring insertable into the housing wall in a stationary and sealing manner and an inner ring connectable to the shaft in a non-twisting and sealing manner. The outer ring includ... | 03/28/2006 |
| 6702293 | Seal member mounted between cylinder head cover and ignition plug tube A seal member adapted to be mounted between a cylinder head cover and an ignition plug tube comprises a mount portion interposed radially movably between an upper surface of an annular stepped portion formed around an opening of the cylinder head cover fo... | 03/09/2004 |
| 6585416 | Self-aligning shaft support A guide to support a shaft such as a pump pull rod (11) which is capable of both rotary and reciprocal motion. The guide prevents any misalignment of rod (11) damaging a seal, e.g. a stuffing box, held in space (24). Guide element (18) has central portion... | 07/01/2003 |
| 6394463 | Oil seal The oil seal of the present invention for a valve stem includes a triple seal lip having a cam chamber side lip, a first combustion chamber side lip and a second combustion chamber side lip. Notches are provided on the second combustion chamber side lip a... | 05/28/2002 |
| 5810570 | Super-low net positive suction head cryogenic reciprocating pump A novel reciprocating pump for cryogenic fluids having a super-low NPSH requirement. The pump has a spring-loaded intake valve made of magnetic material and a reciprocating piston having a permanent magnet at its head end. The intake valve is positioned s... | 09/22/1998 |
| 5799950 | Lubricated joint with equalizing pressure zone The present invention includes a means of equalizing pressure within a sealed pin joint assembly. The pin joint assembly includes slidably connecting a pin through a bearing assembly fitted within a bore in an equalizer bar. The pin is circumferentially s... | 09/01/1998 |
| 5791653 | Sealing ring for sliding units operating at very low temperatures Sealing ring (1) for sliding units (3,7) operating both at very low temperatures and at high pressures, comprising at least one pair of layers (1a) of graphite-based material alternating with at least one supporting ring (1b) made of metallic material.... | 08/11/1998 |
| 5615755 | End piece seal for a rail vehicle slack adjuster An end piece or barrel head (1) for a rail vehicle axial slack adjuster is at its outer periphery connected to a barrel (2) of the adjuster and is arranged around a rotatably and axially movable tube (3). The end piece is provided with an internal, circum... | 04/01/1997 |
| 5458343 | Aircraft engine firewall seal An aircraft engine firewall seal includes a plurality of discrete, stacked-together sealing disks each have a central hole sized for receiving a feed-through member therethrough, with the disks being larger in outer diameter than the firewall aperture thr... | 10/17/1995 |
| 5439233 | Large annular segmented seal with lock portions for missile launch tube A hoop seal for a large annular opening having a high strength ring disposed in the hoop, the hoop having a sealing lip extending at an angle into the high pressure side of the seal, a base and a membrane connecting the hoop to the base which allows the h... | 08/08/1995 |
| 5380288 | Surgical cannula and trocar system and method of using the same An improved surgical cannula and trocar system for use in laparoscopic surgery. The system includes a novel surgical cannula including shield means for protecting operating room personnel from accidental contact with the trocar's sharp tip. The surgical c... | 01/10/1995 |
| 5380016 | Radial lip seal A radial lip seal for sealing about a pin of a hinge joint is disclosed. Such seal includes an outer mounting ring, a rubber flex ring mounted inside the mounting ring, a tension ring mounted inside the flex ring, and an inner elastomeric seal ring mounte... | 01/10/1995 |
| 5335921 | Bearing alignment device for pillow blocks An improved alignment device and/or sealing device for creating an alignment of seals in split pillow block. An alignment device having a cylindrical member surrounding a shaft includes a plurality of sacrificial bearings fitted to the inside diameter of ... | 08/09/1994 |
| 5315912 | Suspended hoop seal A seal for a large annular opening between a launch tube and a missile comprising a suspended hoop composed of a pair of cylindrical rings spaced apart by axially disposed chevron-shaped struts, the inner cylindrical ring having a frustoconically shaped l... | 05/31/1994 |
| 5257812 | Polished rod protection and sealing device A reciprocable polished rod projects through a housing and a stuffing box downstream of the housing. A plurality of packings are provided in the upper portion of the housing and contacting the rod preventing fluid leakage from the housing. A retainer hold... | 11/02/1993 |
| 5137285 | Sealing system for mutually rotating machine parts The sealing system consists of a commercially-available shaft seal (2), having a covering ring (3) to protect the shaft seal dirt and from exposure to the atmosphere. The covering ring (3) pre-arranged separately outside the conventional flexible shaft se... | 08/11/1992 |
| 5085444 | Dust seal for sliding type bush A dust seal for a sliding type bush is interposed between a stationary section and a movable section. The dust seal has a fitting portion fitted to the stationary section, a seal lip portion in sliding contact with the outer circumferential surface of the... | 02/04/1992 |
| 4890702 | Brake or clutch assembly A brake or clutch assembly including a drum (18) and a transfer tube (36) for supplying hydraulic fluid to the drum (18). The transfer tube (36) includes a ring-like seal (59) for sealingly engaging the interface between the transfer tube (36) and the dru... | 01/02/1990 |
| 4832511 | High efficiency seal devices for shaft bearings A seal system for a bearing having a housing with a chamber therein for receiving a shaft supported by a bearing assembly therein. The sealing system includes three and preferably four seal devices integrally related by means of a seal ring detachably ret... | 05/23/1989 |
| 4765227 | Die cylinder assembly A die cylinder assembly is designed for use in an environment which has contaminants outside the assembly. The die cylinder assembly includes a piston disposed in a cylinder and having an outer end surface. The piston is moved in one direction by forces a... | 08/23/1988 |
| 4754984 | Dual-seal-ring shaft seal An intershaft seal device between inner and outer coaxial shafts of a mulle spool turbine is characterized by a primary seal ring and carrier assembly that is keyed for rotation with, and axial movement relative to, the outer shaft with the primary seal ... | 07/05/1988 |
| 4553760 | Flexible seal for a spherical joint A flexible seal assembly has an elastomeric body with a convoluted intermediate portion for accommodating pivotal movement about the center of a spherical joint and an integral radial seal lip for accommodating rotational movement about a central axis of ... | 11/19/1985 |
| 4537409 | Radial rock bit seal An improved radial rock bit seal for utilization with earth boring drill bits which employ rolling cutters mounted on shafts extending from face surfaces on the drill bit body. The improved seal includes a cylindrical body which is disposed around each sh... | 08/27/1985 |
| 4469332 | Seal for a tubular mill A tube mill operated under superpressure in the milling chamber is sealed by means of blocking air, which is made available in a blocking air chamber (9) arranged on the stationary part of the journal (2) of the tube mill. A blocking air channel is provid... | 09/04/1984 |
| 4457518 | Inflated seal for large annular openings A seal for a large annular opening between two generally cylindrical surfaces. The seal being formed of a first portion having a base ring and a toroidal shaped arcuate portion extending from the central portion of the base ring, a lip portion extending r... | 07/03/1984 |
| 4411478 | Rolling bearing for lengthwise guiding of a shaft or the like A rolling bearing for lengthwise movement along a shaft comprised of an outer sleeve having a plurality of races therein for rolling bearings, a cage being provided to guide the rolling bearings. A sealing ring is provided at each end of the assembly, the... | 10/25/1983 |
| 4377289 | Furnace electrode seal assembly An electric furnace electrode seal assembly includes a seal ring mounted on the furnace adjacent the electrode opening. The seal ring is stationary and supports a telescoping arrangement of a plurality of cylindrical sealing glands which can be air or con... | 03/22/1983 |
| 4373599 | Hydraulic rack steering system A hydraulic rack steering system is provided with a unitary seal assembly around a piston rod which is a composite of compressible toroidal gaskets having an intermediate pre-stressing ring constructed and arranged to radially stress a plastic sealing rin... | 02/15/1983 |
| 4337953 | Sealing device with seal lips forming V-shape A sealing device has a single rubber seal member provided with two oppositely directed seal lips which form a V-shaped cross-section and which are in contact with a spherical surface. Grease is filled in the V-shaped space. A portion of an outer fitting m... | 07/06/1982 |
| 4324407 | Pressure actuated metal-to-metal seal A seal assembly permitting a conduit member to be sealed within a bore in metal-to-metal relationship wherein a seal ring of a conical configuration in the relaxed state is deformed toward a flattened condition to increase its radial dimension and establi... | 04/13/1982 |
| 4295653 | Pressure-compensated diaphragm seals for actuators, with self-equalization The invention has especial utility for providing completely safe hermetic sealing of actuators extending into highly sensitive or isolative process equipment, such as that using atomic radiation. The invention uses a general principle taught by the invent... | 10/20/1981 |
| 4244588 | Shear seal assembly PCT NO. PCT/US79/00943 Sec. 371 Date Nov. 5, 1979 Sec. 102(e) Date Nov. 5, 1979, PCT Filed Nov. 5, 1979. A shear seal assembly (80) for sealing between two members (22,36) having limited relative motion therebetween has an inner sleeve (86), an outer slee... | 01/13/1981 |
| 4177997 | Floating seal A high pressure floating ring assembly includes a floating ring having a sealing surface thereon closely fit with respect to the outer diameter of a cylindrical shaft and wherein relative motion occurs between the inside diameter of the floating ring and ... | 12/11/1979 |
| 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 |
| 4077636 | Self-aligning cable rod seal A self-aligning, wear-resistant seal assembly is provided for a cable rod slidably positioned within a cable conduit. A rigid nylon ring which fits snugly around the rod is held against the end of the conduit by an elastomeric seal. The seal has an end wa... | 03/07/1978 |
| 4053030 | Piston seal and return spring A seal for use on a disc brake piston/caliper assembly which seals the piston and also functions as a piston-return spring. The seal has a seal-retaining portion, a sealing lip portion, and a radially extending flex portion therebetween for retracting the... | 10/11/1977 |
| 3980309 | Two-part scraper-type shaft-seal A scraper-type shaft seal comprises an outer C-section ring which is received in an inwardly open groove in a housing and which itself receives the outer periphery of an inner ring formed with a lip which engages the outer surface of a shaft to be sealed.... | 09/14/1976 |
| 3953037 | Polished rod protector and receiver An extensible polished rod protector having alternating inner and outer diameter portions defining adjacent convolutions, and annular retainer members in the form of radial, reinforcing support plates within the outer diameter portions for preventing radi... | 04/27/1976 |
| 3939877 | Weaving machine having a border forming means The means for forming a fabric border is constructed with a cover to cover over the opening in the housing through which the operating element projects. The cover is formed by flange projections on the drive means for moving the operating element or by a ... | 02/24/1976 |