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:
Jul. 14, 1992
Filed:
Sep. 04, 1991
Kenji Okayasu, Saitama, 361, JP;
Other;
Abstract
A heat-driven pump includes a fluid suction port defining unit which introduces liquid into a heating chamber. Bubbles are formed by heating liquid introduced through the fluid suction port defining unit into a heating chamber. The bubbles cause fluid in the heating chamber to flow out through condensation means and enter the condensation means whereas the bubbles are prevented from flowing through the fluid suction port defining unit due to capillary phenomenon of the fluid suction port defining unit. The bubbles are eliminated by cooling in the condensation means, and elimination of the bubbles causes fresh liquid is introduced through the fluid suction port defining unit into the heating chamber, thereby successive pumping of the fluid being performed. The fluid suction port defining unit includes fluid passage defining unit for defining fluid passages for allowing fluid to pass through into the heating chamber whereas the fluid passages prevent the bubbles from passing through due to capillary phenomenon and fluid passage defining unit placing unit for detachably placing the fluid passage defining unit in position.