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 |
| 4211294 | Impregnated diamond drill bit An impregnated diamond drill bit having a crown containing a plurality of diamond particles. The crown is formed from a fused powdered metallic matrix that includes titanium carbide and a nickel-manganese alloy. The diamond particles are dispersed within ... | 07/08/1980 |
| 4211295 | Method and a scale for manual or automatic weighing of objects of same nominal weight Method and scale are designed for the manual or automatic weighing of objects of the same nominal weight by means of a scale locked over its measuring system, having a computing device for establishing the weight of the goods to be weighed from the digita... | 07/08/1980 |
| 4211296 | Scale PCT No. PCT/CH78/00011 Sec. 371 Date Apr. 5, 1979 Sec. 102(e) Date Mar. 12, 1979 PCT Filed Aug. 4, 1978 PCT Pub. No. WO 79/00136 PCT Pub. Date Mar. 22, 1979. A scale, which is particularly intended for weighing humans, comprises a pedestal and a table. Th... | 07/08/1980 |
| 4211297 | Weight vehicle apparatus A weight vehicle apparatus useful for calibrating vehicle scales incorporates a unique pivoted suspension system which uniformly distributes the weight contained in the vehicle apparatus over the surface upon which it rests. The suspension system comprise... | 07/08/1980 |
| 4211298 | Offset tractor A two-axle, four-wheel tractor in which the tractor body composed of a transmission case is offset to one side, with a steering assembly disposed on one side of the tractor body. The tractor body, transmission unit, brake assembly and hydraulic unit for w... | 07/08/1980 |
| 4211299 | Parking apparatus for laterally shifting a vehicle A parking apparatus is used for enabling the driver to move the rear end of a vehicle laterally out of a row of vehicles into a parking spot. For this purpose the vehicle is equipped with a lifting mechanism on auxiliary wheels so arranged that the rear e... | 07/08/1980 |
| 4211300 | Air gun with reciprocating shuttle An improved air gun consists of an elongated cylindrical housing for containing a volume of compressed air that is closed at each end by end plates. A radially-positioned exhaust port is bored into the wall of the housing. A hollow, cylindrical shuttle, i... | 07/08/1980 |
| 4211301 | Marine seismic transducer A method and apparatus for seismic prospecting which utilizes two transducer plates that are spaced apart, with two sets of bellows placed in between and sealingly attached thereto, to transmit electrically controlled hydraulic pressure signals onto the t... | 07/08/1980 |
| 4211302 | Sound absorbing device Acoustic energy is absorbed from a moving fluid by passing the fluid, which is typically a gas, through a tube of closely-woven material defining a gas passage, the tube of material being in contact with a surface covered with a multiplicity of fibers or ... | 07/08/1980 |
| 4211303 | Sound absorbing device Acoustic energy is absorbed from a moving fluid by passing the fluid, which is typically a gas, through a liner comprising a closely woven textile-like material which serves as an acoustically transmitting inner lining. Anchored either directly or indirec... | 07/08/1980 |
| 4211304 | Sound absorbing device Acoustic energy is absorbed from a moving fluid by passing the fluid, which is typically a gas, over a surface covered with a multiplicity of loops of fibers or filaments, each loop having one portion thereof fixed to a suitable backing material, the back... | 07/08/1980 |
| 4211305 | Sound absorbing device Acoustic energy is absorbed from a moving fluid by passing the fluid, which is typically a gas, over a surface covered with a multiplicity of fibers or filaments, each filament having one end attached directly or indirectly to the surface and its other en... | 07/08/1980 |
| 4211306 | Emergency building escape ladder This invention is an interlocking, segmented, ladder for use on high rise buildings and the like; wherein, the ladder is stored horizontally between floors of such building so as to not create an unpleasant or dangerous permanent exterior structure, and w... | 07/08/1980 |
| 4211307 | Removable step or shelf for ladder A removable step for a ladder having a base member dimensioned to function as a seat or shelf, including an upward extending hanging member attachable at the upper end to a ladder rung, the lower end being pivoted to the base rearward edge, a downwardly e... | 07/08/1980 |
| 4211308 | Device for absorbing tension loads in an elongate flexible member A device is provided for absorbing tension loads in a flexible member. The device is shaped as a bent tube for mounting on the flexible member. The free ends of the tube are so oriented that at each free end a tangent to the curved central axis of the tub... | 07/08/1980 |
| 4211309 | Invalid walker with improved brake means An invalid walker includes a frame having a plurality of support points. A wheel is secured to the frame at each of the support points. A brake is connected to each wheel and includes a brake drum attached to the wheel, a brake lining surrounding substant... | 07/08/1980 |
| 4211310 | Spot-type disc brake There is disclosed a caliper guide for a floating-caliper disc brake comprising parallel grooves in adjacent guide surfaces of the caliper and caliper support and roller elements supported in the grooves to movably connect the caliper and caliper support.... | 07/08/1980 |
| 4211311 | Railway car truck and brake support structure A railway car truck includes two pairs of brake support guide assemblies connected to the side frames between the front and rear sets of wheels of the car. The support assemblies support and guide the nub ends of two brake units. The support assemblies in... | 07/08/1980 |
| 4211312 | Emergency brake system for vehicles In an emergency brake system for a vehicle having a brake booster to increase braking pressure applied to wheel brake cylinders from a master cylinder, a cut-off valve is provided within an exhaust pipe of an internal combustion engine for the vehicle and... | 07/08/1980 |
| 4211313 | Transmission brake with lubricating and cooling means A transmission brake with a lubricating and cooling means whereby a portion of the actuating fluid is used to cool the transmission brake and lubricate the brake disks while the transmission brake is operated.... | 07/08/1980 |
| 4211314 | Interlock mechanism A rotating assembly (10) is associated with transmission and parking brake components (33,34) of a work vehicle or arbor and chuck components of a machine tool operation. The use of one component during operation of the other component can result in damag... | 07/08/1980 |
| 4211315 | Cover assembly for a diaphragm spring clutch having diaphragm spring centering means independent and distinct from assembly means therefor A diaphragm spring clutch in which the diaphragm spring is secured to the cover member by posts, or a clip ring. Centering studs distinct and independent of the posts or clip ring are carried by the cover member for centering the diaphragm spring on the c... | 07/08/1980 |
| 4211316 | Chute for charging steel making vessels A water cooled material additive chute for introducing fluxing material into a furnace including water cooled inlet and outlet chambers meeting at a tip or nose portion, a local coolant water injection pipe extending through one of the chambers and into t... | 07/08/1980 |
| 4211317 | Coin chute The entry slot of a chute by which a coin (or token) is introduced into a coin-released mechanism is formed in a member depressible against a resilient bias to actuate a reject function of a coin-validating mechanism into which the coin is fed.... | 07/08/1980 |
| 4211318 | Plate with tilted reversal heads for a device for orientating cigarettes This rotary plate is of the type comprising reversal heads capable of rotating through half a revolution during a complete revolution of the plate in the opposite direction, with a view to taking up an object such as a filter-tipped cigarette and placing ... | 07/08/1980 |
| 4211319 | Oven unloader Apparatus for automatically transferring elongated rows of articles from an oven hearth conveyor moving continuously in a first direction essentially normal to the longitudinal axes of the rows of articles thereon includes an outfeed conveyor continuously... | 07/08/1980 |
| 4211320 | Apparatus for combining sheet material assemblages Apparatus for combining newspapers from a pair of newspaper stuffing assemblies into a single stream of overlapped newspapers. A rotatable tine wheel has on its periphery a number of movable newspaper receiving tines interspersed with a like number of fix... | 07/08/1980 |
| 4211321 | Compact low force economical general purpose walking beam conveyor A walking beam conveyor is described which comprises a movable load supporting, walking beam member. A supporting truss is secured to and supports the walking beam member and comprises first and second orthogonally arrayed interconnected supporting truss ... | 07/08/1980 |
| 4211322 | Self-joined interlocking container A self-joined interlocking container that functions both as a shipping container and a display container. The top portion of the container is removable. The sides decline toward the front to facilitate display of the contents of the package. The container... | 07/08/1980 |
| 4211323 | Disposable diagnostic swab having a stored culture medium A disposable diagnostic swab assembly which takes the form of an elongated tubular member having an internal chamber which is permanently closed at the inner end and is openable at the outer end by the removal of a cap. A culture medium containing breakab... | 07/08/1980 |
| 4211324 | Assembly protecting and inventorying printed circuit boards A stackable tray or container for assembly of or inventorying or transporting printed circuit board components, constructed of paper board coated on inside surfaces with conductive carbon black particles.... | 07/08/1980 |
| 4211325 | Heart valve holder A device for retaining a natural tissue heart valve and stent assembly during storage and transportation prior to implantation of the valve. The device consists of an open-ended, cylindrical valve case having an internal support for a valve support ring a... | 07/08/1980 |
| 4211326 | Blister package A blister package of the push-through type comprises a thermoformed blister portion made of a laminate sealed to a foil sheet. One of the laminae, prior to thermoforming, has been fluid compression rolled from a sheet to about one third of its original th... | 07/08/1980 |
| 4211327 | Stack and nest container A container adapted to either stack or nest with another similarly oriented container of identical construction. The container has a plurality of feet along each side adjacent the bottom. The container side walls each have a lower section and an upper sec... | 07/08/1980 |
| 4211328 | Package for solid or pasty goods A package for solid or pasty goods which have a tendency to adhere to the packaging material has a closure in which on the side facing the packaged goods a plurality of separate, independent cavities (1, 21, 31) have been provided. The cavities are separa... | 07/08/1980 |
| 4211329 | Extender and header card for medicinal dispensing device An extender and header card for a medicinal dispensing device and a fixture base converted for filling the same. The device includes a plurality of article-holding units, each having flanges detachably connected along predetermined weakened lines and a ch... | 07/08/1980 |
| 4211330 | Oral health and hygiene kit An oral health and hygiene kit comprises a length of flexible liquid pervious material, said length of material including a pocket for containing a finger. A dentifrice is applied to an exterior face of the pocket. Also the length of material extends long... | 07/08/1980 |
| 4211331 | Merchandising display A merchandising display comprising a vertical post and at least two vertically spaced apart support members rotatably mounted by bearings on the post. A plurality of tongues project horizontally in different directions from each support member. A pluralit... | 07/08/1980 |
| 4211332 | Color coded boom and chart system A color coding system for correlating the stages of a multiple stage, telescoping boom with the corresponding sections of a load chart and boom extension chart. The charts are arranged in separate sections which indicate, for various positions of the boom... | 07/08/1980 |
| 4211333 | Tamperproof container An improved tamperproof container for lyophilized material wherein the container comprises a vial having flange about its opening. Below the flange, but spaced apart therefrom is a shoulder to define an indented neck therebetween. The opening is sealed wi... | 07/08/1980 |