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US Patent 5846412 - Diffuser construction and mounting arrangement
US Patent Issued on December 8, 1998
Estimated Patent Expiration Date:
November 17, 2015Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
November 17, 2015Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractAn improved air diffuser and mounting arrangement for mounting diffusers on submerged air laterals in a wastewater treatment system. The diffuser is formed form a cylindrical pipe which is flattened on most of its length but left partially cylindrical for convenient mounting. The mounting arrangement includes a removable saddle on the air lateral and a Tee fitting for mounting the diffusers. The saddle has an outlet spout which fits directly against and is connected directly to an inlet leg of the Tee fitting. The saddle construction in one form accommodates either standard U.S. or metric pipe fittings and in another form accommodates two different sizes of pipe fittings.Other References
| InventorAssigneeApplicationNo. 560442 filed on 11/17/1995US Classes:210/220, Submerged fluid inlet261/122.2, With closable apertures261/124, Multiple jet285/5, IRRIGATION TYPE (GUIDE AND SUPPORT)285/197, Saddle-type clamp285/373, Longitudinally divided285/419, Longitudinally divided285/420, CLAMP285/421WedgeField of Search210/220, Submerged fluid inlet261/122.1, Submerged screen261/124, Multiple jet261/122.2, With closable apertures285/373, Longitudinally divided285/420, CLAMP285/419, Longitudinally divided285/197, Saddle-type clamp285/5, IRRIGATION TYPE (GUIDE AND SUPPORT)285/421WedgeExaminersPrimary: Lithgow, Thomas M.Attorney, Agent or FirmUS Patent References3315895, 3489441, 3501133, 3530990, 3918748, 3953553, Sewage treatment aeration systemsIssued on: 04/27/1976 Inventor: Thayer3976314, Tube coupler Issued on: 08/24/1976 Inventor: Graham4018464, Tapping tee Issued on: 04/19/1977 Inventor: Acda , et al.4059291, Branch connection Issued on: 11/22/1977 Inventor: Acda , et al.4060486, Waste water aeration device Issued on: 11/29/1977 Inventor: Schreiber4158461, Pipe tapping bands Issued on: 06/19/1979 Inventor: Francis4165286, Apparatus for the intermittent aeration of sewage Issued on: 08/21/1979 Inventor: Schreiber , et al.4273364, Branch piece Issued on: 06/16/1981 Inventor: de Lange4391458, Pipe coupling with gasket locating means Issued on: 07/05/1983 Inventor: Blakeley4521037, Pipe coupling Issued on: 06/04/1985 Inventor: Knox4563277, Apparatus for aerating and mixing waste water Issued on: 01/07/1986 Inventor: Tharp4818446, Apparatus for introducing a gas into a fluid Issued on: 04/04/1989 Inventor: Schreiber , et al.4960546Diffuser mounting arrangement for waste water aeration systems Issued on: 10/02/1990 Inventor: Tharp Foreign Patent References
International ClassesC02F 003/20B01F 003/04 |
