Roger W Earle, 823789 Hibanks Rd, Conover, WI 54519

7075040, Jul 11, 2006

Aug 20, 2004

10/922438

Curt McFadden - Dubuque IA, US
Kenneth David Hermsen - Dubuque IA, US
Roger W. Earle - Dubuque IA, US
James Edwards - Dubuque IA, US
Kerry W. Leppert - Dubuque IA, US
Eric Jackson - Dubuque IA, US
Eric Garz - Platteville WI, US
Mark Lockwood - Dubuque IA, US
John L. Meek - Rock Hill SC, US

Barnstead/Thermolyne Corporation - Dubuque IA

H05B 1/02

219494, 2194431, 366273

A stirring hot plate for simultaneously heating and stirring a mixture includes a phase controlled motor that spins magnets which couple to, and thereby spin, a stir bar within the mixture. In addition to spinning the magnets, the motor includes an operational mode in which the motor is rapidly braked thereby quickly spinning down the stir bar. The stirring hot plate also includes a visual indicator to the user that the platform is hot-to-the-touch that is especially effective when the stirring hot plate is not in use.

7919731, Apr 5, 2011

Oct 30, 2007

11/928116

Curt McFadden - Dubuque IA, US
Kenneth David Hermsen - Dubuque IA, US
Roger W. Earle - Dubuque IA, US
James R. Edwards - Dubuque IA, US
Kerry W. Leppert - Dubuque IA, US
Eric Jackson - Dubuque IA, US
Eric Garz - Platteville WI, US
Mark Lockwood - Dubuque IA, US
John L. Meek - Rock Hill SC, US

Barnstead/Thermolyne Corporation - Marietta OH

H05B 1/02

219494, 219506, 2194451, 99348, 2411012

A stirring hot plate for simultaneously heating and stirring a mixture includes a phase controlled motor that spins magnets which couple to, and thereby spin, a stir bar within the mixture. In addition to spinning the magnets, the motor includes an operational mode in which the motor is rapidly braked thereby quickly spinning down the stir bar. The stirring hot plate also includes a visual indicator to the user that the platform is hot-to-the-touch that is especially effective when the stirring hot plate is not in use.

2003009, May 22, 2003

Nov 14, 2002

10/294856

Roger Earle - Dubuque IA, US
Eric Garz - Platteville WI, US
Peter Lee - Dubuque IA, US
Mark Lockwood - Dubuque IA, US
Jason Schmitt - Sherrill IA, US

Barnstead/Thermolyne Corporation - Dubuque IA

G01J005/02

250/341800, 250/339110, 366/016000, 366/017000, 366/018000

A method of determining liquid absorption of an aggregate comprises providing a sample of the aggregate, adding liquid to the sample, subjecting the sample to a light source signal, monitoring a light reflected signal reflected from the sample and controlling addition of liquid to the sample as a function of the light reflected signal. The apparatus comprises a support for supporting a sample of the aggregate, a liquid source for adding liquid to the sample, a light source which subjects the sample to a light source signal, a light sensor which senses a reflected light signal reflected from the sample and a processor/controller which controls addition of liquid from the liquid source as a function of the reflected light signal. The light source is preferably an infrared source and the light sensor is preferably an infrared detector. The sample is weighed in a dry state and in the saturated surface dry (“SSD”) state and the percent by weight of aggregate water absorption and hence aggregate binder absorption and/or bulk specific gravity is then calculated. A weighing device can be incorporated directly into the apparatus.

2005018, Aug 25, 2005

Feb 24, 2005

11/064778

Curt McFadden - Dubuque IA, US
Kenneth Hermsen - Dubuque IA, US
Roger Earle - Dubuque IA, US
James Edwards - Dubuque IA, US
Kerry Leppert - Dubuque IA, US
Eric Jackson - Dubuque IA, US
Eric Garz - Platteville WI, US
Mark Lockwood - Dubuque IA, US

A47J009/00

099348000

Controls for stirrers, hot plates and stirring hot plates provide respective user interfaces having a single control knob that is used to provide a plurality of setpoints. The control permits a user to pause a stirring operation of stirrers and stirring hot plates, unload a vessel, load a new vessel, and restart the stirring without having to re-enter a speed setpoint. Also, current operational parameters may be stored as preset setpoints. The control further permits a user to program a calibration temperature that is similar to the temperatures expected to be encountered during operation.

4332553, Jun 1, 1982

Jan 30, 1981

6/229956

Roger W. Earle - Dubuque IA
William J. Walsh - Dubuque IA

Sybron Corporation - Rochester NY

F27B 504
F27B 1100

432205

A furnace having an easily disassembled vacuum chamber to facilitate muffle replacement. The muffle is located over pins on the vacuum chamber base and is held against the base by a leaf spring between the muffle and the vacuum chamber top. The cylindrical wall of the vacuum chamber is correctly located with respect to the muffle by upright spacer bars upstanding from the vacuum chamber base about the periphery of the cylindrical wall. The spacer bars further serve to tie the top and base of the vacuum chamber together and against the cylindrical wall. The furnace is bottom loaded and has a door seal carried by the base so that the seal is not exposed to the direct heat from the muffle when the door is opened.