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. 02, 1991
Filed:
Apr. 17, 1989
William D Dickinson, Medina, NY (US);
James Mirand, Medina, NY (US);
American Sigma, Inc., Medina, NY (US);
Abstract
A convertible and variable-length groundwater device permitting conversion of one type of groundwater sampling device to another, and vice versa. Conversion between a bailer device and a gas-drive pump, or a bailer device and a bailer pump, for example, is readily accomplished by substituting particular components from an assortment of universal, unique and multi-use components adapted to mate one with another and to be assembled substantially without the use of tools. Variable-length bladder devices, gas-drive pumps and bladder pumps are also provided, each being convertible between at least a single- and double-length assembly merely by adding or removing various components.