Grain cleaning system for a combine harvester

Crop threshing or separating – Cleaner – Sieve or grate

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07553226

ABSTRACT:
A grain cleaning system for a combine harvester, comprises a frame supporting a grain pan and a sieve. The grain pan receives grain and chaff separated from the crop by a threshing mechanism and is reciprocable relative to the frame in order to separate the grain from the chaff and to propel the grain and chaff towards the sieve. The sieve is reciprocable relative to the frame and is connected to the frame by front and rear support arms and that are pivotably secured to the frame and to the sieve. In the invention, the front support arms have different geometries from the rear support arms such that when the sieve is reciprocated relative to the frame, the vertical component of oscillation is greater at the front end than at the rear end of the sieve.

REFERENCES:
patent: 3593719 (1971-07-01), Ashton et al.
patent: 3757797 (1973-09-01), Mathews
patent: 4344443 (1982-08-01), De Busscher et al.
patent: 6672957 (2004-01-01), Voss et al.
patent: 1397939 (1975-06-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Grain cleaning system for a combine harvester does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Grain cleaning system for a combine harvester, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Grain cleaning system for a combine harvester will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4139672

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.