David L Baldwin
Electrician at Vassar Ave, Denver, CO
License number
Colorado 42751
Issued Date
May 13, 2009
Renew Date
Nov 6, 2012
Type
Electrical Apprentice
Address
Address
2245 E Vassar Ave, Denver, CO 80210
Personal information
See more information about David L Baldwin at radaris.comName
Address
Phone
4806 Mckinley Dr, Boulder, CO 80303
5221 E 111Th Ct, Denver, CO 80233
Professional information
Patrol Sergeant At Jefferson County
Position:
Patrol Sergeant at Jefferson County
Location:
Greater Denver Area
Industry:
Government Administration
Work:
Jefferson County
-
Patrol Sergeant
Electro-Mechanical Fluid Control Valve
US Patent:
5139226, Aug 18, 1992
Filed:
May 22, 1991
Appl. No.:
7/704051
Inventors:
David L. Baldwin - Denver CO
Steven D. Kaplan - Littleton CO
Steven D. Kaplan - Littleton CO
Assignee:
Mechanical Systems Analysis, Inc. - Littleton CO
International Classification:
F16K 3106, F16K 11044
US Classification:
2511292
Abstract:
Electromagnetic fluid control valves disclosed have a valve body with at least two ports through which a fluid is passed in flowing therethrough with at least one port being closable. Electromagnetic actuating means includes an elongated magnetic core with spaced, opposed first and second leg portions and an intermediate connecting leg portion. One of the first and second leg portions terminates in an end face. A coil wound on the core produces magnetic flux therein. An armature of minimum mass spans the end portions of the first and second leg portions of the core and provides a face opposite the end face of the core to define an open unobstructed air gap. A spring bias is employed to maintain the air gap at its maximum length when the valve is in the deenergized state. The length of the air gap is sized in relation to the diameter of the closable port to maximize the force across the air gap and minimize the travel distance of the armature, thus facilitating maximum switching speed without restricting fluid flow when in the open-port position.