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Patents for Richard Johnstone
Patents 1 - 15 of 36
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3,882,305May 06, 1975R. JohnstoneDiagnostic communication system for computer controlled machine tools
4,109,309Aug. 22, 1978L.D. Ostby, R. JohnstoneMethod and apparatus for remote display of analog signals occurring in computer controlled machine tools
FR-2,380,595Sep. 08, 1978L.D. Ostby, R. JohnstoneMethod and Apparatus for Remote Displaying of Analog Signals Appearing in Computer Controlled Machine Tools
4,120,030Oct. 10, 1978R. JohnstoneComputer software security system
4,145,816Mar. 27, 1979R. Johnstone, R.E. StobbeSpindle probe with orbital transformer
4,164,810Aug. 21, 1979R.B. Clegg, R. Johnstone, C.B. SipekAutomatic tool changer for machine tool
4,172,512Oct. 30, 1979R. Johnstone, R.B. CleggMachine tool with common drive for worktable and pallet shuttle
4,177,550Dec. 11, 1979R.B. Clegg, R. Johnstone, C.B. SipekMachine tool with hollow structural steel members
4,185,376Jan. 29, 1980R. JohnstoneUnmanned machining center with tool checking
CA-1,086,043Sep. 23, 1980R.B. Clegg, R. JohnstoneMachine tool with common drive for worktable and pallet shuttleworkpiece changers and storage mechanisms
CA-1,086,930Oct. 07, 1980C.B. Sipek, R.B. Clegg, R. JohnstoneAutomatic tool changer for machine tooltool changers and storage mechanisms
CA-1,090,108Nov. 25, 1980R. JohnstoneUnmanned machining center with tool checkingtool changers and storage mechanisms
CA-1,090,109Nov. 25, 1980R. JohnstoneMethod of cleaning chips from a work-piece in an unmanned machining centermetalworking machine mechanisms
4,238,034Dec. 09, 1980R.B. Clegg, R. Johnstone, C.B. SipekAutomatic tool changer for machine tool
4,266,120May 05, 1981R. JohnstoneUnmanned machining center with tool checking
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