Signals and indicators – Indicators – Fluid flow
Reexamination Certificate
2007-10-16
2007-10-16
Smith, Richard (Department: 2859)
Signals and indicators
Indicators
Fluid flow
C116S204000, C116S284000, C073S735000
Reexamination Certificate
active
11191099
ABSTRACT:
A gauge for indicating a measured variable such as pressure. The gauge includes a motion detection device including a drive magnet that is adapted to be moveable in response to changes in the variable. The pointer rotation device includes a pivot member, a power magnet coupled to the pivot member, and one or more director members located adjacent the power magnet. Each director member includes a generally helical flange. A pointer is coupled to the pointer rotation device. The director members and the power magnet form a magnetic field adapted to magnetically couple the pointer rotation device to the drive magnet. The pointer rotation device is adapted to rotate about a rotational axis. Movement of the drive magnet in response to changes in the variable rotates the pointer rotation device and the pointer about the rotational axis such that the pointer indicates the measured variable.
REFERENCES:
patent: 1753552 (1930-04-01), Cornell
patent: 3862416 (1975-01-01), Phillips
patent: 4011759 (1977-03-01), Phillips et al.
patent: 4030365 (1977-06-01), Phillips et al.
patent: 4347744 (1982-09-01), Buchanan
patent: 4374475 (1983-02-01), Hestich
patent: 4827095 (1989-05-01), Clark et al.
patent: 4841782 (1989-06-01), Buchanan
patent: 4938076 (1990-07-01), Buchanan
patent: 5012678 (1991-05-01), Buchanan
patent: 5061832 (1991-10-01), Squires
patent: 5533414 (1996-07-01), Huang
patent: 6089098 (2000-07-01), Tylisz et al.
patent: 6499353 (2002-12-01), Douglas et al.
patent: 6763725 (2004-07-01), Huang
patent: 6789434 (2004-09-01), Peterson
patent: 6981421 (2006-01-01), Palmer et al.
patent: 2005/0193824 (2005-09-01), Heuer et al.
patent: 241899 (1995-02-01), None
patent: 421156 (2000-01-01), None
Barnes & Thornburg LLP
Cohen Amy R.
Dwyer Instruments, Inc.
Smith Richard
LandOfFree
Gauge having a magnetically driven pointer rotation device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Gauge having a magnetically driven pointer rotation device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gauge having a magnetically driven pointer rotation device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3841172