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 |
| 6202327 | Ice scraper having non-rotary tools with shielded cutting inserts A vehicle-mounted ice-scraping mechanism includes a tool carrier mounted on the vehicle, and a plurality of non-rotatable ice-scraping tools mounted on the tool carrier and depending downwardly therefrom. Each tool includes a shank mounted to the tool car... | 03/20/2001 |
| 5142800 | Snow groomer tow frame alignment device A snow groomer tow frame alignment device which automatically centers the implement in line with the vehicle without the visual attention of the vehicle operator. The device utilizes a pair of inductive proximity switches and a corresponding metallic shie... | 09/01/1992 |
| 5075987 | Removing apparatus for compressed snow and the like An apparatus for removing compressed snow and the like, includes a steam cutter provided with a plurality of longitudinally extending steam pipes connected to a steam header, with each of the steam pipes having a steam discharging opening formed in its un... | 12/31/1991 |
| 5067263 | Variable geometry tiller In the realm of snow grooming devices for ski hills, a unique snow tiller is disclosed. The snow tiller is pulled by a tracked vehicle and has a snow chamber which can be varied in size and dimension. The tiller is also equipped with a cutting drum which ... | 11/26/1991 |
| 5016366 | Snow ridger A method and an apparatus for producing ridges on snow covered fields are described. A row of snow is severed from the snow cover and elevated to provide a trench in the snow cover. The row is then deflected to one side of the trench and deposited on the ... | 05/21/1991 |
| 5007187 | Snow plow arrangement for moisture retention in a field A snow plow member is attached to selected ones of the shanks of a cultivator frame by inserting the leading edges of the sweep at the lower end of the shank into slots formed on the rear surface of the snow plow member. A leading edge of the snow plow me... | 04/16/1991 |
| 4788783 | Ski-track forming apparatus The present invention relates to a ski-track forming apparatus with a track-forming unit (1) having two parallel track-forming tools (2), extending in the track direction. In order to form a ski-track, when a ski course is formed, along the ideal line of ... | 12/06/1988 |
| 4756100 | Cross country ski track grooming device A cross country ski grooming device comprising a track sled adapted to be towed by a vehicle in the direction of the track and having a pair of spaced apart tracking elements on the underside of the sled oriented in the direction of the track. Each tracki... | 07/12/1988 |
| 4523398 | Track former for cross country ski tracks with means to move former to transport position An apparatus for forming cross country ski tracks in a snow covered surface has a trailer frame adapted to be connected to the rear end of a vehicle. A lifting frame is connected to the trailer frame for pivotal movement about a first horizontal axis. The... | 06/18/1985 |
| 4244662 | Snow groomer A snow grooming device for leveling a snowmobile trail comprising a frame having retractable wheels for transporting the snow grooming device and a set of angled blades which direct the snow back and forth across the trail to a leveler bar that directs th... | 01/13/1981 |
| 4127949 | Snowmobile trail groomer An elongated main frame is provided including front and rear end portions. An elongated dual track endless track drive assembly is oscillatably supported from the rear end portion of the frame for angular displacement about a first horizontal transverse a... | 12/05/1978 |
| 4122614 | Nordic ski track sled A new ski track mold is disclosed which is capable of forming a new and improved type of ski track for use in Nordic skiing when towed behind a tractor, snowmobile or similar transport vehicle. This invention provides novel means for forming a ski track w... | 10/31/1978 |
