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Class 251/3 - PATTERN TRACER CONTROLLED ACTUATOR


Subclass of Class 251 - Valves and valve actuation
Definition: Subject matter wherein the valve is provided with an actuator
No. of patents: 5
Last issue date: 04/25/2006


NumberTitleIssue Date
7033379Suture lock having non-through bore capture zone
A suture lock utilizes a first engaging element and a second engaging element to define a non-through bore capture zone. Each of the engaging elements possesses a surface including at least one mating element that corresponds to a mating element on a surface of the ...
04/25/2006
4593586Tracer control circuit for machine tools
The piston rod of a longitudinal feed cylinder of a tracer controlled lathe is connected with the lathe carriage by means of an operative connection consisting of another hydraulic cylinder or a cam arrangement which permits the rod of the feed cylinder t...
06/10/1986
4285546Tunnel profile control
An apparatus and method for controlling the profile of an aperture cut by a cutting head capable of traversing movement in two directions at right angles to each other, e.g. the cutting head of a mining machine, wherein means is provided to control the mo...
08/25/1981
4265576Milling machine system
A multiple-mode hydraulic tracer valve which is convertible from mode to mode by the use of a shiftable stylus and a transmission whose locus can be shifted relative to the spool valves of the tracer valve without changing the relative settings between th...
05/05/1981
4081734Pneumatic fail-safe sensor system for N/C machine tool
A pneumatic fail-safe sensor system including a probe adapted to monitor the outline of a master pattern as the directed cutter spindle system of an N/C machine tool forms a part is disclosed. When the probe impinges on the master pattern to indicate that...
03/28/1978
 
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