CHARLES BERNARD PITTINGER
Pilots at Lk Dr, Weatherford, TX

4250623, Feb 17, 1981

Aug 1, 1979

6/062750

Charles B. Pittinger - Weatherford TX
Cynthia A. Pittinger - Weatherford TX

A01D 5000

30347

An automatic development reel type cutter head for a filament trimmer comprises a circular base member having a circular array of post-like upstanding members and a filament coil disposed about selected of the post-like upstanding members and inside of the remaining post like members. The filament coil has a free end portion which is automatically deployed outwardly from the coil as the cutter head is rotated by a drive shaft upon which the cutter head is mounted against one of the post-like members so as to project radially outwardly therefrom. As one free end portion wears and breaks off as a result of frictional contact with the post-like member from which it projects, another free end portion is automatically deployed outwardly from another post-like member. In one embodiment of the invention a filament retainer plate is disposed over only those post-like members about which the filament is to be wound. After the filament is wound about the post-like members covered by the retainer plate, a cover plate is positioned over all of the post-like members.

D255640, Jul 1, 1980

Jul 14, 1977

5/815609

Charles B. Pittinger - Weatherford TX

D0803

D 8 8

4612738, Sep 23, 1986

Jul 2, 1985

6/751050

Charles B. Pittinger - Weatherford TX
Cynthia A. Pittinger - Weatherford TX

B24B 902

51335

A rotary cutting and finishing head of the flail type can use common commercially available sandpaper or emery cloth or other sheet material. A hub of the type rotatable by drill press or hand drill, mounts, in plane, uniform length and width strips or ribbons of any of these materials on slotted tube posts coaxially fixed to the hub. Each slot is of a size to capture a fixed end of a respective ribbon on assembly. In one version, every second post is provided with a ribbon. The ribbons are then wound in a substantially circumferential direction in and out among the posts, the odd posts being merely supports for the staggered partially overlying ribbons. On rotation of the hub at high speed, when the flail end of a ribbon wears from flexing at a post, it may part and release a fresh length or flail end at adjacent location. Alternately, fresh lengths of ribbon may be deployed manually by cutting off or tearing off worn flail portions. In another version, similar in part and that is preferred, a drop-in type ribbon supply is provided.

4047455, Sep 13, 1977

Apr 14, 1976

5/676971

Charles B. Pittinger - Weatherford TX

B21K 1900

76 821

An abrasive or other filament-working member is mounted at the sweep circle of a vegetation trimmer filament for progressively sharpening the end of the filament and removing excess filament during operation of the vegetation filament-trimmer; the filament working member may include means causing the filament to heat.