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:
Jun. 16, 1987
Filed:
May. 08, 1986
Applicant:
Inventors:
Nicholas Guarino, Arlington, MA (US);
Gabriel Onorio, Gloucester, MA (US);
Billy W Ward, Rockport, MA (US);
Assignee:
Micrion Limited Partnership, Beverly, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D / ;
U.S. Cl.
CPC ...
220335 ; 220260 ;
Abstract
An evacuable vessel having a heavy cylindrical wall seated on a generally square base has a heavy cover hinged at one end to a hinge support attached to the wall. The cover is bolted to the wall in the closed position and sealed by an O-ring. The hinge bolts are seated in a slotted hole to allow the cover to pivot about the O-ring when closing. Adjustable set screws may be used to tighten the hinge arms and introduce a selected degree of friction. Springs are connected between the outside end of each hinge arm and the base.