Robert W Griffiths
Physician in Salt Lake City, UT
License number
Utah 155117-1205
Issued Date
Jun 26, 1973
Expiration Date
Jan 31, 2004
Category
Physician
Type
Physician & Surgeon
Address
Address
Salt Lake City, UT
Personal information
See more information about Robert W Griffiths at radaris.comName
Address
Phone
90 E 200 S, Spanish Fork, UT 84660
90 E 200 S APT 1, Spanish Fork, UT 84660
880 E Canyon Rd, Paradise, UT 84328
885 Monument Park Cir, Salt Lake Cty, UT 84108
90 200, Spanish Fork, UT 84660
Professional information
See more information about Robert W Griffiths at trustoria.com
Built-In Wet/Dry Vacuum System
Built-In Wet/Dry Vacuum System
US Patent:
6237186, May 29, 2001
Filed:
Oct 7, 1999
Appl. No.:
9/414174
Inventors:
Robert S. Griffiths - Salt Lake City UT
Assignee:
Bridgewater Corporation - Salt Lake City UT
International Classification:
A47L 538
US Classification:
15319
Abstract:
A built-in wet/dry vacuum system includes a canister having an inlet port, an air outlet port, and a liquid outlet port. The canister bounds a chamber configured to hold a liquid. A transfer conduit couples with the canister though the inlet port. The first end of the transfer conduit is configured to couple with a vacuum hose and select adapters. A vacuum motor is coupled with the canister so as to produce a relative vacuum within the chamber when the vacuum motor is turned on. A float switch is disposed within the chamber and is electrically coupled with a vacuum motor. The float switch is configured to selectively turn the vacuum motor on and off based on the level of the liquid within the chamber. A check valve is coupled with the liquid outlet port. The check valve precludes the passage of liquid therethrough when the vacuum motor is turned on and enables the discharge of liquid therethrough when the vacuum motor is turned off.
Method And Apparatus For Detection Of Fluid Level In A Container
Method And Apparatus For Detection Of Fluid Level In A Container
US Patent:
7127943, Oct 31, 2006
Filed:
Jan 19, 2000
Appl. No.:
09/889705
Inventors:
Robert W. Griffiths - Salt Lake City UT, US
R. Bruce Draper - Sandy UT, US
R. Bruce Draper - Sandy UT, US
Assignee:
Rocky Mountain Research, Inc. - Salt Lake City UT
International Classification:
G01F 23/26
US Classification:
73304C
Abstract:
A fluid level sensor is disclosed having first and second vertically and horizontally nonoverlapping electrode plates for placing on a wall of a fluid container. Most preferably, the plates are also vertically spaced from each other. The capacitor plates are driven by a high frequency square wave. By forming nonoverlapping plates and driving them using a high frequency, the level of a fluid within the container, particularly viscous fluid, is more accurately detected. Control and detection circuitry is also disclosed to trigger an alarm if the fluid level drops below a critical level within the container.