Measuring and testing – Liquid level or depth gauge – Float
Reexamination Certificate
2007-02-13
2007-02-13
Williams, Hezron (Department: 2856)
Measuring and testing
Liquid level or depth gauge
Float
Reexamination Certificate
active
10757812
ABSTRACT:
An apparatus for measuring a fluid level includes a housing with a level indicator adapted to display a measured fluid level. A float is associated with the level indicator and an elongated flexible member is provided with a first end and a second end, wherein the first end is attached to the float. The apparatus further includes a spool adapted to store at least a portion of the elongated flexible member, wherein the second end of the elongated flexible member is attached to the spool. A biasing member is adapted to urge the spool to automatically uptake portions of the elongated flexible member as the float travels towards the housing and adapted to allow the elongated flexible member to unwind from the spool as the float travels away from the housing. Additional apparatus include a housing with a level indicator having first and second level indicating gears and a first indexing device adapted to prevent its movement away from one of the indexing gears. The apparatus and a float guide member may be installed on a tank.
REFERENCES:
patent: 219702 (1879-09-01), Eckhoff
patent: 1255178 (1918-02-01), Keyzer
patent: 1696512 (1928-12-01), White
patent: 1918672 (1933-07-01), Szabo
patent: 2511632 (1950-06-01), Gregory
patent: 2600341 (1952-06-01), Thompson
patent: 2713794 (1955-07-01), Burns
patent: 2949777 (1960-08-01), Ferron
patent: 3148542 (1964-09-01), Clift
patent: 3482447 (1969-12-01), Bennett
patent: RE27767 (1973-10-01), Schoepflin
patent: 4078430 (1978-03-01), Pemberton et al.
patent: 4092861 (1978-06-01), Fling
patent: 4116062 (1978-09-01), Reip
patent: 4147060 (1979-04-01), Fling et al.
patent: 4244219 (1981-01-01), Takahashi
patent: 4255859 (1981-03-01), Klieman
patent: 4339950 (1982-07-01), Lendino
patent: 4571998 (1986-02-01), Stegner
patent: 4709653 (1987-12-01), Salomon
patent: 4819484 (1989-04-01), White
patent: 4988978 (1991-01-01), Soto
patent: 5144836 (1992-09-01), Webb
patent: 5209106 (1993-05-01), Carlin
patent: 5533392 (1996-07-01), Kira
patent: 6523404 (2003-02-01), Murphy et al.
patent: 240431 (1926-04-01), None
patent: 848988 (1960-09-01), None
patent: 1105118 (1968-03-01), None
patent: 2004340635 (2004-12-01), None
Grote Brandon P.
Kesterman James E.
Schneider Eugene E.
Delaware Capital Formation Inc.
Dinsmore & Shohl LLP
West Paul M.
Williams Hezron
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