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Filing date
Publication date
Priority claimed from US16/656,936external-prioritypatent/US10965108B1/en
Priority claimed from US17/065,550external-prioritypatent/US20220115849A1/en
Application filed by Milbank Mfg CofiledCriticalMilbank Mfg Co
Publication of MX2020011011ApublicationCriticalpatent/MX2020011011A/en
Perforating, Stamping-Out Or Severing By Means Other Than Cutting
(AREA)
Abstract
A set of punches for use with a punch tool to punch material from the wall of an electrical box; the set of punches has a punch with a cutting section and a punch that defines a cavity that is configured to receive the cutting section; the cutting section may have an annular or circular portion and a plurality of keyway-forming portions, each of which extends radially from the annular or circular portion; the punch cutting section can be inserted into the die cavity in only one orientation; the die may have a projection that can be received within a recess of the punch when the cutting section is received in the cavity; one of the dies or punches may have a receivable extension in a single orientation within an opening in the other die or punch.
MX2020011011A2019-10-182020-10-16Punch set for electrical box.
MX2020011011A
(en)
Method of manufacturing metal plate having hole, metal plate with hole, external gear with peripheral hole, external gear, metal plate for cam, method of manufacturing metal plate, and metal plate