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 |
| 6474922 | Remote operation auxiliary hoist control and precision load positioner An electromechanical, remotely operated Auxiliary Hoist Control and Precision Load Positioner system and device is disclosed utilizing a Radio Frequency Hand Controller transceiver Unit distal to a Radio Frequency Hoist Controller Transceiver Unit for rai... | 11/05/2002 |
| 6241462 | Method and apparatus for a high-performance hoist A mechanical apparatus and method for a high performance hoist for raising and lowering a load, and control apparatus and method for controlling the hoist such that its operation is responsive and intuitive for a human operator. The mechanical apparatus p... | 06/05/2001 |
| 6044991 | Load measuring apparatus for aerial booms and jibs A load measuring device for an aerial machine having a boom or jib which handles loads. A load bearing sheave has a winch line passed over it to raise and lower the load. A guide sheave maintains the winch line at a constant entry angle to the load bearin... | 04/04/2000 |
| 5482169 | Cable lifting device for handling heavy loads within a tight shielded enclosure A lifting device makes it possible to manipulate loads within a tight enclosure with an operator remaining outside the enclosure. The device includes a main arm fitted so as to slide in an opening of a wall surrounding the enclosure, by way of a hose or s... | 01/09/1996 |
| 5209361 | Multiple-cable lifting head with load weighing mechanism for aerial booms and cranes Load cells are provided at the fixed end of each cable of a multiple-cable lifting head adapted for use at the free end of a knuckle boom or other aerial crane for lifting and operating "IGLOO" recyclable waste containers and the like. The load cells prov... | 05/11/1993 |
| 5172782 | Pivot mount of elevator load-weighing at car hitch The invention weighs an elevator car independently of variations in load distribution within the car and variations in the tension distribution in rods and ropes from which the car is suspended. This is accomplished by means of a top hitch plate, a middle... | 12/22/1992 |
| 5076449 | Load measurement system for boom mounted auxiliary arm A boom lift apparatus for use on a truck having a boom and a boom mounted bucket includes a mast selectively positionable on the boom at any of a plurality of different angles and supported on the boom for limited axial movement by a hydraulic cylinder wh... | 12/31/1991 |
| 4746024 | Aerial boom with tensiometer Tensiometer placed on the free end of an aerially articulable boom such that the tensiometer's load indicator is visible from the bucket. A cable extending from the boom's free end may be attached to a working object such as a transformer. When the boom i... | 05/24/1988 |
| 4531647 | Device for stopping the swinging movement of a load hung by a crane A device for stopping the swinging movement of a load hung by a crane. The crane includes a trolley mounted on an overhead girder of the crane with the trolley being capable of traveling back and forth on the overhead girder. A beam is pivotally supported... | 07/30/1985 |
| 4503921 | Weighing system A novel weighing system for cable hoist sheave systems is provided which utilizes a plurality of shear type load cells arranged in a stable 3-point configuration which is capable of supporting side loadings without destroying the vertical reading. Uneven ... | 03/12/1985 |
| 4368792 | Weighing system A novel weighing system for ladle handling apparatus. The system utilizes a plurality of fixed and movable load cells arranged in a stable 3-point configuration and a means for maintaining the load cells in accurate position between a sheave basket and la... | 01/18/1983 |
| 3990584 | Electrical safety control device for a variable radius crane A safety device for a crane including means for continuously comparing an actual load carried by a lifting hook with an indicated maximum safe working load for that particular working radius.... | 11/09/1976 |
