U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Oil skimmer

Patent 5314618 Issued on May 24, 1994. Estimated Expiration Date: Icon_subject March 29, 2013. Estimated 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.

Patent References

3672277

3688909

Device for the selective and continuous recovery of hydrocarbons present in the form of a sheet at the surface of an aqueous medium
Patent #: 4681680
Issued on: 07/21/1987
Inventor: Delons ,   et al.

Device for skimming oil from water
Patent #: 4957636
Issued on: 09/18/1990
Inventor: Wilson, et al.

Oil retriever with interchangeable collection tanks and method of use therefor
Patent #: 5030363
Issued on: 07/09/1991
Inventor: Pole

Variable draft oil/debris skimming vessel
Patent #: 5043065
Issued on: 08/27/1991
Inventor: Propp

Oil skimmer
Patent #: 5194151
Issued on: 03/16/1993
Inventor: Broussard

Skimmer and method for its use Patent #: 5200083
Issued on: 04/06/1993
Inventor: Kaylor

Inventors

Application

No. 038641 filed on 03/29/1993

US Classes:

210/242.3, With oil water skimmer210/923Using mechanical means (e.g., skimmers, pump, etc.)

Examiners

Primary: Upton, Christopher

Attorney, Agent or Firm

International Class

C02F 001/40

Abstract

A single drum skimmer and a weir skimmer for recovering all types of oil from a surface of a body of water. An aluminum, high density polyethylene lined drum, floated by adjustable pontoons is rotated clockwise by a hydraulic drive motor, thus drawing the oil layer on top of the water, under and up over the drum to a high density polyethylene scraper blade where it is scraped off into a collection box. The oil runs to the corners of a collection box where it is suctioned off through suction hoses to a camlock "tee" fitting. The oil travels through a main suction hose to a peristaltic master pump which provides suction and discharge of oil from the skimmer to a vacuum dehydrator. An open topped, adjustable reservoir/weir collector has an opening in the front panel which may be opened for weir skimming, and closed for drum skimming.

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