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:
Oct. 24, 1978
Filed:
Jul. 11, 1977
Billy H Holmes, Lake Park, FL (US);
John B Schwartz, Lake Park, FL (US);
Perry Oceanographics, Inc., Riviera Beach, FL (US);
Abstract
A mechanism for securing a dome-shaped door in an opening of a vessel to effect sealing with respect to pressure at either side of the door, the convex side of the door being directed towards the exterior of the vessel and the mechanism being disposed at the concave side of the door and including locking members radially movable into a door locking position and a spider assembly connect to move the locking members and mounted for movement along a shaft carried by the door between a position in which the assembly is adjacent the door and the locking members are retracted from the door locking position and a position in which the assembly is spaced from the concave side of the door and the locking members are in the door locking position, whereby the mechanism can be retained substantially within the recess defined by the door at its concave side.