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US 4,899,447 AGranted
Panel punch
AssigneeGreenlee Textron Inc.
InventorLarry Adleman
Life of this patent
Estimating the term…
Abstract
The panel punch includes a main punch configured to punch a trapezoidal opening in an electrical panel to receive an electrical chassis connector and a secondary punch integral with the main punch and extending from opposite ends thereof configured to punch a U-shaped slot in the panel extending from the ends of the trapezoidal opening to receive mounting screws for physically attaching the electrical connector to the panel.
Claims12
A punch for punching an opening in a panel for an article comprising:
- a main punch having ends, a base, a pair of spaced apart lateral working surfaces and a pair of inclined working surfaces spaced from said base, said inclined working surfaces extending between said spaced apart lateral working surfaces;
- said inclined working surfaces each extending toward said base to a respective end of said main punch in diverging relation to one another and configured to punch said opening in the panel for receiving the article;
- at least one secondary punch having a pair of spaced apart lateral working surfaces and an inclined working surface, said inclined working surface extending between said spaced apart lateral surfaces and being configured for punching a secondary opening intersecting with and extending from said opening for receiving the article, said secondary opening being configured for receiving mounting means for attaching said article to the panel, said at least one secondary punch extending from one of said respective ends of the main punch and terminating in a remote secondary punch end, said at least one secondary punch having said inclined working surface thereof integrally interconnecting with an adjacent one of the inclined working surfaces of said main punch, the maximum height of said secondary punch inclined working surface relative to said base not exceeding the minimum height of said main punch inclined working surfaces and the height relative to said base of said secondary punch end being less than the maximum height of said secondary punch inclined working surface.
Dependencies are inferred from the claim text.