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:
Nov. 09, 1982
Filed:
Dec. 11, 1980
Robert A Schweitzer, Milwaukee, WI (US);
James H Tate, Milwaukee, WI (US);
Other;
Abstract
A smoke filtering and cooling device is removably mounted within a cylindrical vertical passage in a tobacco smoking water pipe through which smoke is upwardly directed. The device comprises a selectively expandable/retractable portion which is engageable with the passage wall whereby the device is mechanically supported and a fluid-tight seal is provided so that a quantity of water can be retained in the passage around the device. The device further comprises or defines passageways whereby the smoke is directed through the water for filtering and cooling as it passes through the pipe. A plurality of devices may be arranged one above another in the same water pipe to increase efficiency.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile