Device for controlling the function of central lubrication installations
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United States of America Patent
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-
Dec 3, 1985
Grant Date -
N/A
app pub date -
May 4, 1984
filing date -
May 18, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a device for controlling the function of central lubrication installations with two electrically conducting components (8, 9) integrated into a signal circuit, a contact piston (18) provides the electrical contact between these components (8, 9). The contact piston (18) is guided with zero play in a bore (17) of one of the components (8, 9). It has a sealing section (19) which, in the working position of the device, is bypassed by two side ducts (24, 26) and a connected duct (25). One (24) of the connecting ducts (24, 26) emerges at a position in the bore (17) serving to guide the contact piston (18), which position is sufficiently far removed from the outlet opening of a flow duct (22) that lubricant can only flow through the device when a comparatively large distance has been established between one component (9) and the contact piston (18).
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