Cutlery – Miscellaneous
Patent
1991-02-01
1992-09-22
Gorski, Joseph M.
Cutlery
Miscellaneous
30 904, 30168, B26B 308
Patent
active
051485990
ABSTRACT:
A mold extractor and method of manufacture thereof is provided. The extractor or tool is used to remove the annular wall, bottom wall, and lid of a plastic mold container from a concrete test sample taken at a construction site for later testing in a test laboratory. The extractor includes a hammer member, a guide member and a chisel member. The hammer is reciprocally displaced by an operator for applying a downward force on the container annular wall at the wall edge. The hammer has a peripheral wall having an elongate hole with an axis through which the guide portion extends. The hammer has enlarged end portions, for gripping by the operator and for applying the impact force. The guide member is an elongate round bar portion which has a handle at the top end thereof. The chisel member has a head portion, a square bar portion, a claw portion, and a chisel end portion. The claw portion is used for lifting the container lid by applying an upward force on the extractor. The chisel end portion has a pair of grooves forming a tee-shaped tip portion with knife-like edges. The chisel end portion is forced between the edge of the container annular wall separating the container inner surface from the concrete sample outer surface, while at the same time, cutting apart the plastic container annular side wall.
REFERENCES:
patent: 5005286 (1991-04-01), Purcell
Gorski Joseph M.
Weiss Harry M.
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