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 |
| 7331470 | Magnetic rake with release mechanism A magnetic raking device that agitates a ground surface and uses magnetic attraction for collecting ferro-metallic debris, such as nails and screws, at construction jobsites and other locations, includes a release mechanism that temporarily eliminates magnetic attra... | 02/19/2008 |
| 7134263 | Combination weeding and raking tool The present invention relates to hand operated gardening and landscaping tools for use in cultivating soil and/or removing inferior or unwanted plants from a selected area. More particularly, the present invention relates to a combination scuffle and rake assembly. ... | 11/14/2006 |
| 6851254 | Self-cleaning rake A rake having a self-cleaning mechanism and method of its manufacture. The rake comprises a handle, a body, a plurality of tines extending from the body, a push-rod extending along the handle to the body, a push rod actuator for extending and retrieving the push-rod... | 02/08/2005 |
| 6845604 | Rake stripper A rake stripper includes a cleaning member pivotally coupled to a rake handle for movement between a retracted position and an extended position. The cleaning member includes a pair of cleaning elements positioned relatively close to the tines of the rake for cleani... | 01/25/2005 |
| 6634163 | Leaf pickup and discharge device A device for picking up scattered leaves on a lawn by piercing them with an array of sharp tines extending from a support plate that is held by an extended handle so the user can press the tines into leaves from a standing position. A resiliently mounted ... | 10/21/2003 |
| 6009697 | Self-cleaning rake A hand held garden implement, namely a rake, which allows for self-cleaning through the new design of the rakes prongs or teeth of collected leaves, grass, vegetable matter or other adhering material. The head of the rake, containing a plurality of interc... | 01/04/2000 |
| 5743076 | Rotary type debris collector The invention comprises an improvement in a lawn-cleaning device for picking up debris wherein flexible and deformable belts are used in an easily configurable compact structure whereby leaves and the like are pierced by spikes, tines or the like in repet... | 04/28/1998 |
| 5713193 | Self-cleaning rake A self-cleaning rake consists of a handle, a grip, a spring release button, and two sets of tines. The handle is made from fiberglass and consists of two telescoping pieces. One of the pieces is larger in diameter and the other piece is slidably retained ... | 02/03/1998 |
| 5493850 | Lake bottom plant and debris gathering apparatus with improved actuation and cleaning of raking mechanism A plant gathering apparatus for the removal of aquatic plant growth on lake bottoms includes a mobile frame adapted for towing across a lake bottom, a raking mechanism, a towing assembly, an actuating mechanism and a cleaning mechanism. The raking mechani... | 02/27/1996 |
| 5373903 | Manual dual purpose garden tool A self-cleaning, dual purpose, manual garden tool that can be used either as a weeder or as a cultivator. The tool has an elongated body that serves as a handle. The body is longitudinally split into two parts which are pivotally joined at one end. When t... | 12/20/1994 |
| 5343684 | Rake attachment A rake attachment for cleaning the tines of a hand rake includes a header and a plurality of tines connected thereto. The tines are substantially rigid and are adapted to engage the tines of the rake and clean accumulated leaves and debris therefrom. A pl... | 09/06/1994 |
| 5305591 | Raking implement with integral tine cleaner A hand held implement for raking is provided with an apparatus for cleaning of debris which becomes lodged on and among the tines by means of an actuator, requiring a minimum of effort and disruption of the raking rhythm on the part of the operator in ord... | 04/26/1994 |
| 4776158 | Self-cleaning leaf rake A conventional rake includes a stripper bar on the teeth which is movable by a push rod on the handle of the rake from a raised raking position to a lowered leaf push-off position. A spring clip holds the stripper bar in the raised position and may be ass... | 10/11/1988 |
| 4432421 | Garden tool with self-cleaning earth-working elements A garden tool which allows the user to rake, cultivate, thatch, weed and aerate the soil is disclosed. The tool comprises a handle and a work head which includes a number of partially rotatable earth-working elements. One end of each element is specifical... | 02/21/1984 |