Erik E Anderson

US Patent:

51423855, Aug 25, 1992

Filed:

Jan 9, 1991

Appl. No.:

7/643141

Inventors:

Erik H. Anderson - Lake Peekskill NY
Henry I. Smith - Sudbury MA
Mark L. Schattenburg - Brookline MA

Assignee:

Massachusetts Institute of Technology - Cambridge MA

International Classification:

G03H 110

US Classification:

369 10

Abstract:

First and second coherent beams illuminate a common area on an exposure station. A phase detector senses the relative phase between the first and second beams to provide a control signal. There is at least one phase shifter in the path of at least one of the coherent beams. The control signal is coupled to the phase shifter to adjust the phase imparted thereby so that the relative phase between the first and second coherent beams is substantially constant.

US Patent:

20230032017, Feb 2, 2023

Filed:

Oct 12, 2022

Appl. No.:

17/964207

Inventors:

- St. Paul MN, US
Erik M. Anderson - Hugo MN, US
Kevin W. Weber - Roseville MN, US

International Classification:

A47G 1/17
A47G 25/32
A47G 29/087

Abstract:

The present disclosure provides adhesive mounting articles that can be removed from surfaces without damage by having reduced contribution of a hardgood to the peel force generated by the adhesive article during removal. In some instances, this can be accomplished by a hardgood that is flexible in a peel direction and rigid in a weight hanging direction. Such hardgoods may include a plurality of minimally connected body segments arranged about the transverse axis of the hardgood body.

US Patent:

20230023624, Jan 26, 2023

Filed:

Jul 12, 2022

Appl. No.:

17/862771

Inventors:

- Bloomington MN, US
Erik P. Anderson - Eagan MN, US
Brent T. Harrold - Burnsville MN, US
Robert A. McGlade - Somerset WI, US
John K. Aune - Eden Prairie MN, US

International Classification:

B01D 35/153
B01D 27/08
B01D 35/30

Abstract:

A filter cartridge with flow travelling from inside to outside with a flow path in a bottom end cap to enter the cartridge has an anti-drain back valve to prevent cross-contamination to the clean side of the system during filter change-out. The anti-drain back valve moves away from the bottom end cap to allow inlet flow into the cartridge during filtering operation, and when flow ceases, the valve settles to the bottom of the cartridge to plug the flow path during service.

US Patent:

20200292236, Sep 17, 2020

Filed:

Oct 15, 2019

Appl. No.:

16/653345

Inventors:

- Glenview IL, US
Brandon Oakes Long - Rosemount MN, US
Prathna Ung - Rosemount MN, US
Erik Richard Anderson - Lakeville MN, US

International Classification:

F27D 9/00
H01L 21/67
H01L 31/18
F27B 9/14
F27D 11/00

Abstract:

One embodiment is directed to an apparatus comprising a firing furnace comprising a heating chamber configured to fire a metallization layer of photovoltaic devices and a cooling chamber configured to cool the photovoltaic devices that have been heated by the heating chamber. The cooling chamber comprises lights to light anneal the photovoltaic devices to reduce light induced degradation as the photovoltaic devices are cooled in the cooling chamber. The cooling chamber of the firing furnace is configured to use residual heat from heating performed in the heating chamber of the firing furnace as heat for the light annealing of the photovoltaic devices. Light annealing is not performed in the heating chamber of the firing furnace.

US Patent:

20190322940, Oct 24, 2019

Filed:

Apr 19, 2019

Appl. No.:

16/389459

Inventors:

- Minneapolis MN, US
Erik Anderson - Maplewood MN, US

International Classification:

C10B 19/00
C10L 1/02
C10B 55/00
C10B 41/00

Abstract:

A distillation apparatus for use in microwave-assisted pyrolysis includes a microwave, a pyrolysis reactor, a microwave-absorbent bed, and a condenser. The pyrolysis reactor is located within the microwave and configured to receive a liquid input stream and to output a vapor. The microwave-absorbent bed is located within the pyrolysis reactor that converts microwave energy provided by the microwave to thermal energy to initiate pyrolysis within the pyrolysis reactor, wherein the pyrolysis reactor provides a vapor output. The condenser is configured to receive the vapor output of the pyrolysis reactor and to cool and condense the vapor into a recoverable product.

US Patent:

20190249923, Aug 15, 2019

Filed:

Feb 13, 2019

Appl. No.:

16/274997

Inventors:

- Glenview IL, US
Erik R. Anderson - Lakeville MN, US
Roy Kearns Ball - Austin MN, US

International Classification:

F27D 19/00
H01L 31/18
H02S 50/10

Abstract:

Methods and apparatus to provide closed loop control in a solar cell production system are disclosed. An example solar cell production system includes: a firing furnace comprising a plurality of zones and a belt configured to transport photovoltaic cells through a sequence of the plurality of zones, the zones comprising firing elements configured to fire a metallization layer of photovoltaic cells by heating ambient air in the zones to respective temperatures; a cooling chamber configured to cool the photovoltaic cells; a photovoltaic cell tester configured to measure a property of the photovoltaic cells after cooling of the photovoltaic cells in the cooling chamber; and control circuitry configured to control firing elements based on the property of the photovoltaic cells measured by the photovoltaic cell tester.

US Patent:

20190063969, Feb 28, 2019

Filed:

Aug 31, 2017

Appl. No.:

15/692741

Inventors:

- Boulder CO, US
Chad T. Weigelt - Minneapolis MN, US
Samuel E. Messenger - Chaska MN, US
Erik D. Anderson - Chanhassen MN, US

International Classification:

G01F 1/60
G01F 1/58
H01B 1/12
C08L 27/12
C08K 3/04

Abstract:

An electromagnetic flowmeter assembly is provided. The assembly includes a magnetic flowmeter configured to couple to a process pipe at a coupling point and measure a flowrate of a flow of process fluid. The assembly includes a conductive polymer reference connection configured to contact the process fluid and provide an electrical connection to magnetic flowmeter electronics.

US Patent:

20170284845, Oct 5, 2017

Filed:

Mar 31, 2016

Appl. No.:

15/086826

Inventors:

- Chanhassen MN, US
Michael J. Mayer - Waconia MN, US
Bruce D. Rovner - Minneapolis MN, US
Michael J. Mikolichek - Farmington MN, US
Erik D. Anderson - Chanhassen MN, US
Nicholas W. Bond - Belle Plaine MN, US
Chad T. Weigelt - Minneapolis MN, US

International Classification:

G01F 1/58
B29B 15/00

Abstract:

A polymeric flow tube assembly is provided. The flow tube assembly includes a flow conduit configured to allow fluid flow therethrough. A first coil is mounted with respect to the flow conduit and disposed about a first magnetic pole member. A second coil is mounted with respect to the flow conduit and is disposed about a second magnetic pole member. The second magnetic pole member is configured to cooperate with the first magnetic pole member to generate an electromagnetic field across a flow measurement aperture. First and second electrodes are positioned within the flow tube assembly to measure an electromotive force generated within a fluid in the flow measurement aperture. At least one of the first magnetic pole member, second magnetic pole member, first electrode and second electrode is formed, at least in part, of a polymer.