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. 16, 1990
Filed:
Apr. 25, 1989
George L Pisors, Los Gatos, CA (US);
James T Taoka, San Jose, CA (US);
Cablelift Oil Corporation, Concord, CA (US);
Abstract
A cable pulley transmission has a plurality of pulleys with flight receiving pockets, an endless cable trained about the pulleys, and a plurality of flights located at spaced intervals along the cable. The flights on the cable fit into the flight receiving pockets of the pulleys for transmitting motion between the pulleys and the cable. Each of the flights are formed by two half-sections that are mounted together about the cable. Such a transmission can be used as a lift for liquid. One pulley is located in a source of liquid and at least one pulley is located above the liquid source. The cable has an ascending section and a descending section. The flights are spaced to maintain a column of liquid surrounding the ascending cable section. When the liquid handled is of a lower viscosity than necessary for adhering to the flights and cable of the ascending section, a tube can be positioned about the ascending section to serve as a conduit for conveying liquid therethrough and to hold the pulley in the liquid source. At least one of the flights joins separate cable ends to form an endless cable.