Wells – Processes – Sampling well fluid
Reexamination Certificate
2007-12-11
2007-12-11
Bagnell, David (Department: 3672)
Wells
Processes
Sampling well fluid
C166S162000, C166S241600, C073S864630
Reexamination Certificate
active
10865650
ABSTRACT:
A water well bailer. In one embodiment, the bailer includes a tubular housing composed of any polymer used as a plastic, such as, polyethylene, polypropylene, polystyrene, polyesters, polycarbonate, polyvinyl chloride, nylon, poly(methyl methacrylate), polytetrafluoride, polyacrylonitrile, or chemical derivations there of for storing within the housing a sample of well water. A texture may be on the housing. The texture of the bailer reduces the surface area of the bailer in contact with the inside wall of a water well such that the bailer does not stick to the wall of the water well during incidental contact. The reason a bailer sticks to the side of a well is due to adhesive and cohesive forces acting between the well wall and the bailer. Adhesive and cohesive forces are generated between the bailer and well wall because of humidity and condensation of water on the well wall, and water on the outside of the bailer after initial contact with groundwater. Due to the low-density (light weight) nature of these bailers, adhesive and cohesive forces are able to overcome the force of gravity thus impeding the descent of the bailer.
REFERENCES:
patent: 400896 (1889-04-01), Burkellow
patent: 1204105 (1916-11-01), Wiley
patent: 1489986 (1924-04-01), Davison
patent: 1763703 (1930-06-01), Hinderliter
patent: 1937707 (1933-12-01), McDowell
patent: 2143836 (1939-01-01), Anderson
patent: 2155601 (1939-04-01), Johnson
patent: 2160320 (1939-05-01), Walker
patent: 2345219 (1944-03-01), Sanderson
patent: 2438298 (1948-03-01), Reed
patent: 2572493 (1951-10-01), Klaasen et al.
patent: 5349875 (1994-09-01), Sher et al.
patent: 5404949 (1995-04-01), Voss
patent: 5507194 (1996-04-01), Scavuzzo et al.
patent: 5597966 (1997-01-01), Timmons
patent: 5753831 (1998-05-01), Mohs
patent: 5878813 (1999-03-01), Ridgeway, Jr.
patent: 5902940 (1999-05-01), Stern
patent: 6276220 (2001-08-01), Varhol
patent: 6431272 (2002-08-01), Pratt
patent: 6439304 (2002-08-01), Eaton
patent: 6464012 (2002-10-01), Strickland
patent: 6481300 (2002-11-01), Cordry
patent: 6543302 (2003-04-01), Pratt
patent: 6669255 (2003-12-01), Pratt
Alyanakian Gregory
Breglio, III Robert A.
Reeve Rodney N.
Bagnell David
Bomar Shane
Knobbe Martens Olson & Bear LLP
LandOfFree
System for reducing adhesion and cohesion between non... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System for reducing adhesion and cohesion between non..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for reducing adhesion and cohesion between non... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3833304