ROBERT NEIL PIERSON
Pilots in Quamba, MN
License number
Minnesota A1498668
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
1998 Hammagren Rd, Quamba, MN 55051
Professional information
Locking Non-Metallic Single Lever Control
US Patent:
8267373, Sep 18, 2012
Filed:
Feb 23, 2010
Appl. No.:
12/660284
Inventors:
Robert Neil Pierson - Mora MN, US
International Classification:
F16K 35/00
US Classification:
251 99, 251 93, 251105, 251231, 251242, 7447323, 7447325
Abstract:
A single lever control for manually manipulating a hydraulic valve spool of a directional control valve, which comprises an elongate shaft encased within an outer casing and having first and second ends each being fixedly attached to an end cap and a pivot block, respectively. The outer casing comprising a cylindrical cup for housing a biasing element whereupon an applied upward force on the cylindrical cup causes the outer casing to move upwardly to the extent of lifting a latching member pivotally connected to the pivot block and releasing a locking mechanism. The mounting assembly comprising an adapter plate integrally connected to a vertical support member and having a large aperture for receiving a moveable stem associated with the hydraulic valve spool, an arrangement of which allows a valve-actuating stem associated with the pivot block to movably interact with the moveable stem as the single lever control is selectively manipulated.