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Title:
DYNAMICALLY ACTIVE DIPPER DOOR MECHANISM
Document Type and Number:
WIPO Patent Application WO2001004424
Kind Code:
A3
Abstract:
A dipper door (16, 40) pivotally mounted to a dipper (10, 43) is controlled as it pivots between open and closed positions. In one embodiment, the door (16) is controlled by a brake (22) pivotally linking the door (40) to the dipper. In another embodiment, the door is pivotally mounted to the dipper by a pin (41), and the door is controlled by a linkage actuated by a linear actuator (50). The pivot point of the door is positioned above the dipper bottom to decrease the dump height of the dipper.

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Inventors:
BROWN ROBERT F JR
Application Number:
PCT/US2000/018412
Publication Date:
May 25, 2001
Filing Date:
July 03, 2000
Export Citation:
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Assignee:
BUCYRUS INT INC (US)
International Classes:
E02F3/407; (IPC1-7): E02F3/407
Domestic Patent References:
WO1997041312A11997-11-06
Foreign References:
US5815960A1998-10-06
DE1041877B1958-10-23
DE697260C1940-10-09
US4063373A1977-12-20
US2434902A1948-01-27
US4006832A1977-02-08
US5590482A1997-01-07
DE3402269A11985-08-01
US1712040A1929-05-07
US1629634A1927-05-24
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