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. 17, 1987
Filed:
May. 29, 1986
Thomas A Davis, Annandale, NJ (US);
Kurt Bozenmayer, West Milford, NJ (US);
Donald J Butterworth, Stirling, NJ (US);
The Graver Company, Union, NJ (US);
Abstract
An air/water distributor underdrain assembly for providing a uniform distribution and metering of backwash air and/or water through a filter bed. The distributor assembly includes a distributor member which defines a distributor chamber for receipt of backwash air and/or water thereinto. A plurality of first and second spaced apart openings extend through the distributor member. A shroud extends downwardly into the distributor chamber from each of the first openings in fluid communication with an intermediate portion of the distributor chamber for directing backwash water therethrough. Backwash air collected in a gas compartment formed in an upper portion of the distributor chamber is directed through the second openings.