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Simple Self‐Cleaning Valve Key Saves Time
Author(s) -
Martinez John
Publication year - 1987
Publication title -
opflow
Language(s) - English
Resource type - Journals
eISSN - 1551-8701
pISSN - 0149-8029
DOI - 10.1002/j.1551-8701.1987.tb01183.x
Subject(s) - contest , key (lock) , simple (philosophy) , computer science , engineering drawing , engineering , computer security , philosophy , theology , epistemology
This article describes a modified valve key with openings between the shaft and key that allow mud and trash to pass through without plugging it. Construction details are provided. This device was the first place winner of the 1987 Gimmicks and Gadgets contest. Other prize winners are listed.