Tools – Wrench – screwdriver – or driver therefor – Wheel or endless track operated
Patent
1975-05-23
1976-04-27
Jones, Jr., James L.
Tools
Wrench, screwdriver, or driver therefor
Wheel or endless track operated
81 532, B25B 1348
Patent
active
039526186
ABSTRACT:
A device for extracting plastic risers from fittings such as polyvinyl-chloride water sprinkler pipes. The device has a shallow frusto-pyramidal shank having slightly concaval sides. The opposed edges of the shank lie at an angle of between 1.5.degree. and 5.degree. with respect to the longitudinal axis of the shank. The shank has a left-handed twist between 4.degree. and 36.degree. per inch of shank length. The shank is affixed to an extension rod which, in turn, has a handle to permit turning the device about its longitudinal axis.
REFERENCES:
patent: 1554287 (1925-09-01), McGuckin
patent: 1604032 (1926-10-01), Ferrell
patent: 2066132 (1936-12-01), Zihler
patent: 2244824 (1941-06-01), Caminez
patent: 3216292 (1965-11-01), Flegal
Averill, Jr. Edgar W.
Honey Bee Tool Company
Jones Jr. James L.
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