Tool for mounting spring retainer plates on valve stems
OwnerLambert Eckerinventor
Life of this patent
Estimating the term…
Abstract
A tool for mounting a spring retainer plate on a valve stem with a locking member includes a tool shaft having a socket on one end thereof for cooperation with a spring retainer plate to push same over a valve stem. A yieldable pin extends outwardly of the shaft at its one end centrally of the socket for engaging an end of a valve stem. An abutment surface generally radially outwardly of the pin engages a locking member to move same axially over the end of a valve stem in following relationship to the spring retainer plate for cooperably locking onto the valve stem to hold the plate against displacement from the stem.
Claims16
A tool for mounting a spring retainer plate on a valve stem with a locking member comprising:
- a tool shaft having a socket on one end thereof for cooperation with a spring retainer plate to push same over a valve stem, a pin extending outwardly of said shaft at one end centrally of said socket for engaging an end of a valve stem, pin biasing means for yieldably biasing said pin outwardly of said one end, an abutment surface outwardly of said pin for engaging a locking member to move same axially over the end of a valve stem in following relationship to the plate for cooperably locking onto the valve stem to hold the plate against displacement from the stem;
- the spring retainer plate being held against displacement from the valve stem by a radially compressible locking member, said socket having enlarged recess means therein through which said pin extends for receiving a radially compressible locking member radially outwardly of said pin;
- and compression means movable generally radially into said recess means for compressing a locking member generally radially inwardly when said pin is axially retracted from said recess means.
A tool for mounting a spring retainer plate on a valve stem with a locking member comprising:
- a shaft having a socket member removably attached to one end thereof, said socket member having an axially outwardly opening socket for cooperation with a spring retainer plate to push same over a valve stem when an axial force is applied to said shaft, an axially movable pin mounted in said shaft and projecting outwardly centrally into said socket, yieldable pin biasing means for normally biasing said pin outwardly into said socket, opposite recesses adjacent said pin for receiving cooperable locking members, and opposite rods movable laterally of the axis of said shaft into said recesses, whereby when said shaft is moved axially to push a spring retainer plate over a valve stem said pin engages the end of the valve stem and is progressively retracted as the locking members are moved over the valve stem until the pin is completely retracted from between the locking members whereupon inward movement of said rods compresses the locking members into locking engagement with the valve stem to hold the spring retainer plate against displacement therefrom.
Dependencies are inferred from the claim text.