
US Patent No: 4,450,979
Number of patents in Portfolio can not be more than 2000
Seed metering means
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May 29, 1984
Issued date -
Sep 27, 1982
filing date -
06/424,835
serial no -
Expired
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Abstract
Disclosed are improvements in seed metering apparatus for seed planters such as disclosed in applicant's U.S. Pat. Nos. 3,888,387 and 3,999,690. The improvements relate to improved seed pick-up, retention, and release; to a non-wear pneumatic seal between rotating seed disc and housing; and a seed gate.
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