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:
Feb. 09, 1988
Filed:
Feb. 09, 1987
Walter J Rozmus, Jr, Traverse City, MI (US);
The Dow Chemical Company, Midland, MI (US);
Abstract
A quantity of powder material (14) which is less dense than a predetermined density is disposed in a sealed container (12) which is encapsulated in a pressure transmitting medium (16). The pressure transmitting medium (16) is placed within a pot die (26) of a press where it is restrained as ram (24) enters the pot die (26) and applies a force to the pressure transmitting medium (16) and the container (12). The pressure transmitting medium (16) comprises liquid and is capable of transmitting pressure omnidirectionally about the container (12). The container (12) has a porous structure. The container (12) collapses and permanently deforms as the powder (14) compacts. The container does not completely expand to its initial shape after being removed from the pressure transmitting medium (16) and therefore saves the compacted powder (14') from resilient forces of the container (12) tending to rebound the container (12) to its initial shape.