DAVID M SAGE
Massage Therapy at Avondale Rd, Redmond, WA
License number
Washington MA60490936
Category
Restorative Service Providers
Type
Massage Therapist
Address
Address
11435 Avondale Rd NE, Redmond, WA 98052
Phone
(425) 941-1670
Professional information
Variable Reactance Alignment Detector And Control
US Patent:
4266732, May 12, 1981
Filed:
May 19, 1980
Appl. No.:
6/151166
Inventors:
David M. Sage - Redmond WA
George E. Sage - Redmond WA
George E. Sage - Redmond WA
International Classification:
B05B 300, H01F 2106, G08C 2500
US Classification:
239720
Abstract:
An alignment system with a variable reactance element is provided for detection of the angular alignment of two variably positionable members. The variable reactance elements form two oppositely varying impedances. A preferred embodiment of the variable reactance element consists of a pair of inductive coils mounted on a core element which forms a flux path for each coil. The core has an integral, deflectable central member which forms a common flux path for both coils. Air gaps within the flux path of each coil are located on either side of the central member of the core. Another variable reactance consists of a first inductive coil having a fixed core element forming a partial flux path for the inductive coil and a movable core element positionable relative to the fixed core element with air gaps between the core elements. A second inductive coil having a similar associated core element is placed opposite the movable core element from the first coil element. A modification of the previous embodiment is disclosed wherein the fixed core elements are in part formed of spaced, elongated bars.