Weighing scales – Computer – Electrical
Patent
1988-02-29
1989-02-28
Miller, Jr., George H.
Weighing scales
Computer
Electrical
177108, 177112, 222504, 222556, G01G 1316, G01G 1334, B67D 300, B67D 4700
Patent
active
048077119
ABSTRACT:
A weighing hopper (20) comprising: a body portion for containing articles; a port in the body portion; a door (21) pivotally connected to the body portion for rotation about a first axis (A) between a first position in which the port is closed by the door (21) to retain articles in the body portion and a second position in which articles contained in the hopper (20) can be discharged through the port; and a mechanism (23) for moving the door (21) between its first and second positions comprising a first member (58) rigidly connected to the door (21); a second member (60) pivotally connected to the first member (58) for rotation about a second axis (E) parallel to and spaced from the first axis (A); and a third member (62) pivotally connected to the second member (60) for rotation about a third axis (B) parallel to and spaced from the second axis (E), and pivotally connected to the body portion for rotation about a fourth axis (C) parallel to and fixedly spaced from the first axis (A) so that rotation of the third member (62) about the fourth axis causes rotation of the door (21) about the first axis (A); and a first stop member (D) which defines the first closed position of the door (21) as a position just after the third axis (B) has moved through a straight line joining the second (E) and fourth (C) axes.
REFERENCES:
patent: 4522321 (1985-06-01), Kinoshita
patent: 4705125 (1987-11-01), Yamada et al.
Dunton Keith E.
Isherwood Jonathan M.
Newley Peter E.
O'Brien Kennedy M.
Purser Michael H.
Driver Southall Limited
Miller Jr. George H.
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