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. 24, 1998
Filed:
Dec. 21, 1995
Ishikawajima Hirima Heavy Industries Co. Ltd., Tokyo, JP;
Abstract
A carriage movable in waste including: a body having a float at its upper portion and a weight at its lower portion to suspend in the water, the body having an opening in its abdomen; a thrust fan provided on a back of the body, the fan being rotatable in a normal or reverse direction thereby enabling the body to translate in the water and to suctionally attach itself onto a wall or leave the wall; a skirt provided around the opening formed in the abdomen of the body to contact the wall thereby maintaining the bodies interior to a negative pressure as the body suctionally attaches itself onto the wall; and a drive wheel provided on the abdomen of the body to contact the wall upon suctional attachment on the wall. This underwater carriage can move on a vertical wall, have small dimensions and be lightweight.