RICHARD B LEARNED
Engineering in North Chatham, MA
License number
Massachusetts 993
Issued Date
Feb 5, 1988
Expiration Date
Dec 31, 2007
Type
Sanitarian
Address
Address
North Chatham, MA 02650
Professional information
Well Flow Controller
US Patent:
2002000, Jan 24, 2002
Filed:
Jun 15, 2001
Appl. No.:
09/883068
Inventors:
Richard Learned - North Chatham MA, US
International Classification:
E21B034/14
US Classification:
166/332800, 166/325000
Abstract:
The present invention provides a mechanism for controlling the flow of groundwater into a well. The mechanism is attached between the well screen and the riser pipe, and can be manually opened or closed at the ground surface. When the mechanism is closed, groundwater cannot enter the riser pipe. When the mechanism is opened, groundwater can flow into the riser pipe.
Low-Flow Groundwater Sampling System
US Patent:
2002015, Oct 31, 2002
Filed:
Feb 26, 2002
Appl. No.:
10/083015
Inventors:
Richard Learned - North Chatham MA, US
International Classification:
E21B043/10, E21B049/08, E21B023/02
US Classification:
166/264000, 166/382000, 166/206000
Abstract:
Methods, apparatus, and systems for low-flow sampling of a fluid source. One illustrative embodiment of the invention is directed to a method for manually sampling a fluid source in a well, including exerting a downward pressure on a sample tube, disposed within a well insert, to allow fluid to pass from the well through a portion of the well insert and into the sample tube to fill at least a portion of the sample tube with the fluid. Another illustrative embodiment of the invention is directed to a method for securing a well insert to an inner wall of a well, including arranging stabilizers on the well insert in a non-extended position, introducing the well insert into the well, arranging the stabilizers on the well insert in an extended position, and expanding a portion of a gasket on the well insert such that the portion of the gasket conforms to a circumference of the inner wall of the well.
Voc Groundwater Sampler
US Patent:
2005018, Aug 25, 2005
Filed:
Jan 26, 2005
Appl. No.:
11/042242
Inventors:
Richard Learned - North Chatham MA, US
International Classification:
G01N001/12
US Classification:
073864510
Abstract:
The present invention is directed to a method and apparatus for manually sampling a fluid source in a well, comprising an act of lowering a tube containing containers and container caps into a fluid in the well to allow said fluid to pass from the well into the tube to fill at least a portion of the tube such that the containers and container caps are submerged in the fluid, retrieving the tube; and closing the containers with the container caps while still submerged in the fluid.