Patents by Inventor Harold E. Quackenbush

Harold E. Quackenbush has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4074830
    Abstract: A rotating disc has perforated seed pockets which pick up individual kernels of seed from a cavity of a planter housing. Bulk seed flows by gravity from a hopper to the cavity which is pressurized by a blower. As the disc rotates through the cavity, air flowing through the perforated pockets will move the seeds into the pockets and hold them there as the disc rotates to bring the seed carrying pockets into axially confronting relation with a flat sealing surface. The flat sealing surface holds the seed in the pockets as the disc rotates further to a position wherein the pockets are exposed to an open bottom area of the housing at which point the seeds are free to fall by gravity into the soil.
    Type: Grant
    Filed: September 23, 1974
    Date of Patent: February 21, 1978
    Assignee: Allis-Chalmers Corporation
    Inventors: Charles E. Adams, Harold E. Quackenbush, Paul H. Harrer, Le Roy Langford, Alvin L. Cleek