Robert J Dumas

US Patent:

20120225415, Sep 6, 2012

Filed:

Mar 2, 2012

Appl. No.:

13/411158

Inventors:

Christopher Michael Vento - Manchester MA, US
Prashant Varadraj Nayak - South Grafton MA, US
Robert James Dumas - Stratham NH, US

Assignee:

CENGAGE LEARNING, INC. - Stamford CT

International Classification:

G09B 3/00

US Classification:

434350

Abstract:

A learning content delivery system is provided that includes a network, a plurality of remotely stored content delivery applications each having learning content, one or more user devices, and a platform. The platform has an application framework that allows the one or more user devices to access the remotely stored applications and learning content via the network. The applications can include at least two platform specific applications, which are developed on a common application programming interface. The platform can dynamically sense one or more attributes of each user device and to customize presentation of the learning content from the platform specific applications for the user device. The application framework can provide two-way awareness between the platform and the platform specific applications.

US Patent:

20190360883, Nov 28, 2019

Filed:

May 23, 2019

Appl. No.:

16/420845

Inventors:

- Milford MA, US
Taylor J. Castagna - Boston MA, US
Robert J. Dumas - Upton MA, US

International Classification:

G01L 9/04
G01L 9/00
G01N 30/32
G01N 30/64

Abstract:

Disclosed is a pressure transducer including a body made of a material having a first coefficient of thermal expansion, a fluidic inlet and a fluidic cavity enclosed by the body in fluidic communication with the fluidic inlet. The pressure transducer further includes a strain gauge including a resistive element in operable contact with the body. At least a portion of the resistive element made of a material having a second coefficient of thermal expansion that is different from the first coefficient of thermal expansion of the body. Disclosed further is a pressure transducer including a filler body located in a fluidic cavity of the pressure transducer configured to reduce adiabatic thermal effects on a transducer body. Disclosed are systems and methods incorporating the pressure transducers described herein.