WADE PHILLIP LEVEILLE, SR
Pilots at Manchaug St, Douglas, MA

5788465, Aug 4, 1998

Feb 23, 1996

8/606149

Joseph A. Luongo - Walpole MA
Jeffrey Howard Stokes - Franklin MA
Robert E. Reynolds - Easton MA
Wade P. Leveille - Douglas MA
Robert J. Dumas - Upton MA

Waters Investments Limited - Wilmington DE

F04B 1700

417360

A pump configured so that tools are not required to remove the pump head and disassemble the plunger. A single large hand operated knob or head nut facilitates tool-less pump head removal. The pump head is guided into position in a manifold and held in place by the hand knob. The manifold is designed to receive all the external fluidic connections made to the pump head. Fluid paths to the pump head have been replaced with miniature face seals which facilitate high pressure sealing between the pump head and manifold. Low pressure tubing seals reside in a seal wash chamber or housing and are not attached to the head, eliminating the need for tooling to disconnect them during pump head removal. A tool-less plunger mechanism includes a nutcap assembly having a plunger socket receiving a plunger assembly including a sapphire plunger fixed to a plunger holder ball accommodated by the socket. The plunger assembly is captured within the socket by a plurality of cams.

2012028, Nov 15, 2012

Jan 11, 2011

13/519833

John Angelosanto - North Attleboro MA, US
Charles T. Murphy - Norton MA, US
Kurt Joudrey - Newton MA, US
Kara O'Donnell - Watertown MA, US
Paul E. Linderson - Warwick RI, US
Michael LeBeau - Attleboro MA, US
Wade P. Leveille - Douglas MA, US
Michael R. Jackson - Woonsocket RI, US

WATERS TECHNOLOGIES CORPORATION - Milford MA

B01F 15/04, B81B 1/00

3661621, 3661771

Low-pressure mixing of fluids includes a pumping system having a pump and a fluidic inlet port through which fluid is introduced to the pump. A fluid proportioning system is in fluidic communication with the fluidic inlet port of the pumping system to deliver thereto a fluid stream comprised of multiple different fluids. The fluid proportioning system includes a manifold having a plurality of inlet ports, an outlet port connected by tubing to the fluidic inlet port of the pumping system, and an outlet conduit providing an internal fluidic passageway to the outlet port. Each inlet port is fluidically coupled to a fluid source to receive one of the different fluids and to the outlet conduit to deliver thereto the received fluid for delivery out of the manifold through the outlet port to the fluidic inlet port of the pumping system.

8035088, Oct 11, 2011

Mar 19, 2008

12/593313

Michael J. Tomany - Thompson CT, US
Joseph A. Jarrell - Newton Highlands MA, US
Stanislaw Koziol - Wrentham MA, US
Wade P. Leveille - Douglas MA, US

Waters Technologies Corporation - Milford MA

H01J 49/04, H01J 49/26, B01D 59/44

250428, 250434, 250435, 250281, 250282, 250288, 250287, 137561 A

The invention comprises apparatus for use with atmospheric pressure ionization sources in which an aerosol is formed from a solution of a sample. The aerosol is received in a hollow member and discharged outside the chamber of the ionization source in order to reduce contamination of the ionization source itself by involatile material in the solution and by previously analysed samples. The hollow member is easily removable from the ionization source to facilitate cleaning and replacement. Ionization sources, mass spectrometers, and ion mobility spectrometers comprising the apparatus are also described.