The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 20, 1984
Filed:
Jun. 01, 1981
Willi Dorpmund, Elze, DE;
Graaff KG, Elze, DE;
Abstract
A device for locking together two stacked objects, each having a plate with an opening, the plates being in superposed relation and the openings being in registry. The device includes a housing, the top wall of which is the plate of the lower object. A bolt, movable vertically and rotatably within the housing, having a head piece shaped to pass through the plate openings when the bolt is in a first angular orientation but not when the bolt is in a second angular orientation. A structural unit, movable vertically with the bolt and rotatable with respect to it, has a supporting shoulder which does not engage a support surface in the housing when the unit is in a first angular orientation but does engage the surface when the bolt is in a second angular orientation. A pair of levers are used to simultaneously raise the bolt and structural unit so that the bolt head piece passes through the plate opening; with one lever the structural unit is then rotated so that its shoulder rests on the support surface in the housing, and with the other lever the bolt is rotated so that it does not pass through the registered openings in the plates. A pawl prevents accidental rotation of the levers in a direction which would unlock the objects.