Tension bar screen
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Feb 8, 1994
Grant Date -
N/A
app pub date -
Jul 21, 1992
filing date -
Jul 21, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A bar screen apparatus (10) having inner and outer frame assemblies (14, 16), with each frame assembly including a plurality of thin, blade-like bar elements (44). Each frame assembly (14, 16) further includes means for maintaining the blade-like bar elements under tension (58, 76). The inner and outer frame assemblies are driven by a drive system which includes a drive motor (97), a first drive shaft (121) at the infeed end of the apparatus, a second drive shaft (128) at the discharge end of the apparatus and a connecting assembly (126) for connecting the two drive shafts. Certain eccentric cams (114, 116, 118 and 120) are mounted on the first drive shaft (121) and are connected to the inner and outer frame assemblies (14, 16), while other eccentric cams (140, 142, 144 and 146) are mounted on the second drive shaft (128) and are connected to the inner and outer frame assemblies (14, 16), with the bar elements in the inner frame assembly being driven approximately 180.degree. out of phase relative to the bar elements in the outer frame assembly.
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