John W Swenson

US Patent:

20120003131, Jan 5, 2012

Filed:

Jun 28, 2011

Appl. No.:

13/170577

Inventors:

Osama Ibrahim - Bellingham MA, US
Klaus Peter - Natick MA, US
Noah Loren - Waban MA, US
Peter Willey - Rumford RI, US
Zachary L. Nardi - Smithfield RI, US
Amin Saeid - Philadelphia PA, US
John Swenson - Hudson MA, US
James McDonald - Forest Grove PA, US

Assignee:

RYPOS, INC. - Holliston MA

International Classification:

B01D 53/92
B01D 53/94
B03C 3/68
B01D 53/56
B03C 3/04
B03C 3/38

US Classification:

423212, 96 82, 96 54, 96 18, 96 19, 95 73, 422177

Abstract:

An apparatus for dissipating energy into the exhaust gas of an internal combustion engine includes a container for confining a flow path for exhaust gas from an internal combustion engine where the container has an inlet and an outlet. A porous, electrically conductive mesh is placed in the container such that exhaust gas can flow through the conductive mesh. At least two electrical terminals are in permanent electrical contact with the conductive mesh. An electrical power supply completes an electrical circuit through the conductive mesh with the power supply having two or more electrical outputs electrically connected to an equal number of electrical terminals on the conductive mesh. The apparatus provides a filter, heater, electrical load and silencer.

US Patent:

54647738, Nov 7, 1995

Filed:

Mar 14, 1994

Appl. No.:

8/213194

Inventors:

Luis A. Melendez - Norwood MA
Robert E. Rosenbaum - Framingham MA
Marcela A. Vera-Garcia - Framingham MA
D. Michael Olive - Framingham MA
John E. Swenson - Marlboro MA

Assignee:

Amoco Corporation - Chicago IL

International Classification:

C12M 133

US Classification:

4353061

Abstract:

An improved apparatus for effectively disrupting biological samples contained in cuvettes to which beads have been added. In the apparatus, a special arm/bearing subassembly is driven and oscillated by a motor in a manner to attain cellular disruption of the biological samples without degradation of their cellular components. In the preferred form, the special arm/bearing subassembly has a cam, bearings, and a bearing sleeve which cooperate with a motor drive shaft to rotate a yoke with two arms holding four cuvettes. For increased safety and environmental protection, special sample retainers can be provided to better secure the cuvettes and the arm/bearing subassembly is enclosed in a sample chamber which provides a secondary containment compartment that contain any spillage.