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 |
| 7958799 | Brake for gear cone transmission A brake assembly is activated by a vehicle brake. The brake assembly is mounted upstream from a transmission and either up or downstream from a clutch. A controller for the transmission brake allows the driver to adjust both a transmission brake lead/lag time and fo... | 06/14/2011 |
| 7856902 | Variable transmission A drive system suitable for use in a variable transmission with a plurality of rotatable and adjustable disk members, gear means adapted for contact with the plurality of disk members, carriage means for mounting the gear means and configured for axial movement alon... | 12/28/2010 |
| 7329202 | Toothless gear speed reducer A toothless gear speed reducer, which mainly includes an inclined plane cone drive gear, inclined plane conical driven gears and an inclined plane outer gear case drive ring. The toothless gear speed reducer overcomes the difficult problems existent in conventional ... | 02/12/2008 |
| 7267023 | Miter gear transmission A miter gear transmission includes a driving shaft, an idler cluster and a driven shaft. The idler cluster includes two cone-shaped gear sets, each having a proximate end with a gear having a largest number of teeth and a distal end with a gear having a smallest num... | 09/11/2007 |
| 7174245 | Method and system for identifying the degree of a slip of a belt part of a belt transmission The present invention relates to a method for detecting a slip (s) of a belt part of a belt transmission, especially of a CVT transmission, having a transmission rpm ratio (ji). According to the invention, a slip of the belt part is detected by evaluating the... | 02/06/2007 |
| 6802229 | Gear drive having continuously variable drive ratio A continuously variable drive ratio transmission includes a support, a first shaft rotatably mounted to the support so that shaft can rotate about a first axis, a helical rack supported by the first shaft so that the rack has a plurality of toothed convolutions faci... | 10/12/2004 |
| 6709355 | Continuously variable transmission A Continuously Variable Transmission (CVT) that uses a gear which changes gear size, along with an innovative gear train to achieve different gear ratios. The CVT overcomes the disadvantages of other designs, as it is a purely mechanical drive system. The CVT is an ... | 03/23/2004 |
| 6543305 | Gear train and transmission system utilizing the same A gear train apparatus including a gear and a cone disposed in contact with the gear. The cone includes a plurality of conic teeth, between which are a first plurality of spaces, and a plurality of scaling teeth, between which are a second plurality of sp... | 04/08/2003 |
| 6360625 | Power transmission apparatus and vehicle using power transmission apparatus The invention provides a power transmission apparatus having a reduced power transmission loss. In the power transmission apparatus, an input shaft side variable pitch circle gear, an output shaft side variable pitch circle gear and a cycloid sliding gear... | 03/26/2002 |
| 6321613 | Continuously variable transmission A variable ratio transmission for transferring torque between an input port and an output port includes two transmission shafts mounted with an angle θ between them. A first of the shafts supports a series of at least two conical gear wheels, of differen... | 11/27/2001 |
| 6089114 | Bicycle transmission with selectable automatic down shifting A multi-speed transmission for bicycles, comprising: a housing including spaced, opposing face plates, each face plate having a pedal shaft opening and a secondary shaft opening; a pedal shaft rotatably disposed within said pedal shaft openings; a seconda... | 07/18/2000 |
| 5660077 | Self-contained motor speed control device A self-contained speed control device and system, primarily for electric and hybrid vehicles, includes a self-contained mechanical variable-speed control device. The device allows the motor to run constantly at its most efficient speed and temperature. Th... | 08/26/1997 |
| 5653143 | Automatic mechanical variable ratio transmission A variable ratio transmission system for coupling a load to a source of rotational power includes a selector shaft having a selector gear axially movable on a fork dolly by an actuator including a lead screw, and a control motor; an inclined cluster shaft... | 08/05/1997 |
| 5490433 | Semi-continuous transmission A transmission subunit with an intermediate shaft having continuous gears of progressive pitch diameters interposed between pairs of conventional gears. The geometry of the continuous gears permits input gears, output gears, and/or idler gears to freely a... | 02/13/1996 |
| 5425685 | Continuous variable-ratio transmission A continuous variable-ratio transmission includes a first rotatable member whose exterior surface of revolution about its axis of rotation is defined by a tractrix curve. A rotatable conical member is mounted upon a first shaft and frictionally engages wi... | 06/20/1995 |
| 5205794 | Shift mechanism for bicycle A shift mechanism for a bicycle and the like wherein a chain is shifted from sprocket to sprocket by an operator controlling a lever to position a camming surface to direct a guide pawl to tilt a segment of one sprocket whereby the tilted segment aligns w... | 04/27/1993 |
| 4831889 | Conical worm gear for a multi-speed bicycle drive mechanism A multi-speed chainless drive mechanism for a cycle-type vehicle comprises a drive shaft rotatably driven by a pedal actuated gear train. The drive shaft, which includes a universal joint, extends away from the gear train. The drive mechanism also compris... | 05/23/1989 |
| 4630495 | Variable ratio power transmission means There is disclosed a continuously variable ratio power transmission means comprising truncated cones having concave parabolic circumferential surfaces which surfaces are in rolling contact one with another and which can be moved in a linear fashion to pro... | 12/23/1986 |
| 4515030 | Extended range variator for fuel pump computer A pricing mechanism for a mechanical computer, used in connection with a fuel dispensing pump, is of expanded capacity, enabling a price of $0.000 to $4.999 to be set and posted. The mechanism for expanding the variator comprises a supplemental range asse... | 05/07/1985 |
| 4515296 | Variable ratio liquid metering dispenser A variable speed ratio system for the controlled dispensing of a plurality of non-compressible fluids at high pressure, principally for use in reaction injection molding processes. Each of the pistons in two or more displacement cylinders that contain the... | 05/07/1985 |
| 4513198 | Mechanical computer assembly Conversion of a conventional volume-price computer for a liquid fuel metering pump to extend the existing range from three place to four place unit price per volume and comprising an auxiliary differential gear train assembly driven from the main output g... | 04/23/1985 |
| 4509390 | Differential summing mechanism A mechanical integrator, such as may be used in a fuel pump variator, is of reduced size, adapting it for use in applications in which the space available is limited. It employs three planetary gears having odd numbers of teeth, and may utilize the mounti... | 04/09/1985 |
| 4476736 | Transmission for a laundry machine A transmission for a laundry machine has at least two operating modes. The transmission includes input means selectively rotatable for oscillation in one operating mode and for unidirectional rotation in another operating mode. A pair of output means are ... | 10/16/1984 |
| 4457186 | Power transmission device A transmission device for providing positive geared, constant mesh, variable speed, rotary power transmission. The device includes a power drive shaft with an axially mounted, slidable drive gear. This drive gear is locked in rotational movement by means ... | 07/03/1984 |
| 4418273 | Mechanical fuel pump computer conversion mechanism A conversion mechanism for selective conversion of a conventional mechanical fuel pump computer to selectively extend the unit volume price range of the computer while maintaining the rotational speed of the right hand cost and volume counter wheels of th... | 11/29/1983 |
| 4417134 | Mechanical fuel pump computer conversion mechanism A conversion mechanism for selective conversion of a conventional mechanical fuel pump computer to selectively extend the unit volume price range of the computer while maintaining the rotational speed of the right hand cost counter wheels of the computer ... | 11/22/1983 |
| 4375030 | Extended range variator conversion mechanism Conversion of an extended range mechanical fuel pump computer price variator for selectively substituting an optional $3, $4 or $5 unit volume price adder for an optional $1 or $2 unit volume price adder.... | 02/22/1983 |
| 4292506 | Fuel pump computer price variator Means for converting a fuel pump computer from a maximum unit volume price of 99 and 9/10 cents established by a conventional mechanical variator of the computer to a higher maximum unit volume price of either $1.49 and 9/10 cents or $1.99 and 9/10 cents ... | 09/29/1981 |
| 4283967 | Extended range variator conversion mechanism Conversion of an extended range mechanical fuel pump price variator for selectively substituting either a $2 or $3 optional unit volume price adder for an optional $1 unit volume price adder.... | 08/18/1981 |
| 4269078 | Extended range variator conversion mechanism Conversion of an extended range mechanical fuel pump price variator for selectively substituting an optional $2 unit volume price adder for an optional $1 unit volume price adder.... | 05/26/1981 |
| 4187784 | Self propelled cable car A cable car for traveling along an overhead cable-way, the car having an on-board engine that powers the vehicle to haul itself along the cable-way, the engine rotating a winch drum around which is frictionally grasped a stationary hawling cable which at ... | 02/12/1980 |
| 4136573 | Extended range fuel pump computer price variator Conversion of a fuel pump computer price variator from a three place to a four place unit volume price range and comprising an auxiliary higher place take-off shaft parallel to and having a coaxial gear in engagement with the variator cone gear, an additi... | 01/30/1979 |
| 3934491 | Settable variator drive mechanism A fuel delivery pump with a settable price variator with a center shaft driven by a fuel meter, volume counters driven by the variator center shaft for registering the volume of fuel delivered and cost counters for registering the cost of fuel delivered d... | 01/27/1976 |