Liquid level detecting device

Details Liquid level detecting device Liquid level detecting device

2008-02-21

2011-10-04

Williams, Hezron E (Department: 2856)

Measuring and testing

Liquid level or depth gauge

Float

Reexamination Certificate

active

08028575

ABSTRACT:
A liquid level detecting device includes a rotative member having a bearing portion and a stationary member having an axis portion. The axis portion is fitted to a hole of the bearing portion, thereby rotatably holding the rotative member. The rotative member is integrated with a displacement member. The stationary member is fixed with a detection unit to detect a displacement of the displacement member. The rotative member is connected with a float via an arm. The axis portion has an inserted portion inserted in the bearing portion and in contact with the bearing portion via a contact portion. The contact portion has a total area that is less than an area of an outer circumferential periphery of the inserted portion.

REFERENCES:
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patent: 6267416 (2001-07-01), Ferreira et al.
patent: 2003/0035744 (2003-02-01), Horita et al.
patent: 2005/0083045 (2005-04-01), Miyagawa
patent: 11-094631 (1999-04-01), None
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Chinese Office Action dated May 19, 2010, issued in corresponding Chinese Application No. 200810086563.1, with English translation.
Chinese Office Action dated Aug. 14, 2009, issued in corresponding Chinese Application No. 200810086563.1, with English translation.
Japanese Office Action dated Oct. 14, 2008 issued in corresponding Japanese Application No. 2007-073319 with English translation.

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