Sandra R Pinelle from 39 Beauview Ave, Nashua, NH 03064, age 63, Phone: 603 595-8280

Us Patents

Method For Fabricating A Magnet Structure
view source
US Patent:

6692676, Feb 17, 2004
Filed:

Apr 19, 2001
Appl. No.:

09/837991
Inventors:

Ravi Vig - Bow NH
Daniel S. Dwyer - Manchester NH
Gregory R. Bowman - Waltham MA
Sandra R. Pinelle - Nashua NH
Terry R. Clapp - Goffstown NH
Assignee:

Allegro Microsystems, Inc. - Worcester MA
International Classification:

B29C 4514
US Classification:

264255, 2642711, 26427215, 26427219
Abstract:

A magnet structure including a magnet and an integral magnetically permeable concentrator and methods for making the same are provided. The concentrator is comprised of a plastic loaded with one or more magnetically permeable materials to a percentage suitable for providing desired magnetic field characteristics. The magnetic element may be comprised of a conventional magnetic material or a plastic loaded with one or more magnetic materials. An insert molding technique is described in which either the concentrator or magnetic element is prefabricated and inserted into a mold which is subsequently filled with a loaded plastic to provide the other component of the magnet structure. In an alternate fabrication technique, both the concentrator and magnet are sequentially formed by injection molding in the same mold. Also described is a magnet structure including a ring magnet having a central aperture in which a steel rod is disposed.

Integrated Current Sensor
view source
US Patent:

6781359, Aug 24, 2004
Filed:

Sep 20, 2002
Appl. No.:

10/251007
Inventors:

Jason Stauth - Concord NH
Richard Dickinson - Concord NH
John Sauber - Millbury MA
Ray Engel - Southbridge MA
Sandra Pinelle - Nashua NH
Assignee:

Allegro Microsystems, Inc. - Worcester MA
International Classification:

G01R 1520
US Classification:

324117H, 324126
Abstract:

An integrated current sensor includes a magnetic field transducer such as a Hall effect sensor, a magnetic core, and an electrical conductor. The conductor includes features for receiving portions of the Hall effect sensor and the core and the elements are dimensioned such that little or no relative movement among the elements is possible.

Integrated Current Sensor
view source
US Patent:

7265531, Sep 4, 2007
Filed:

Apr 26, 2004
Appl. No.:

10/831906
Inventors:

Jason Stauth - Concord NH, US
Richard Dickinson - Concord NH, US
John Sauber - Millbury MA, US
Ray Engel - Southbridge MA, US
Sandra Pinelle - Nashua NH, US
Assignee:

Allegro MicroSystems, Inc. - Worcester MA
International Classification:

G01R 15/20
G01R 33/07
US Classification:

324117H, 324126
Abstract:

An integrated current sensor includes a magnetic field transducer such as a Hall effect sensor, a magnetic core, and an electrical conductor. The conductor includes features for receiving portions of the Hall effect sensor and the core and the elements are dimensioned such that little or no relative movement among the elements is possible.

Integrated Sensor Having A Magnetic Flux Concentrator
view source
US Patent:

7476953, Jan 13, 2009
Filed:

Feb 4, 2005
Appl. No.:

11/051124
Inventors:

William P. Taylor - Amherst NH, US
Richard Dickinson - South Boston MA, US
Michael C. Doogue - Manchester NH, US
Sandra R. Pinelle - Nashua NH, US
Assignee:

Allegro Microsystems, Inc. - Worcester MA
International Classification:

H01L 43/00
US Classification:

257421, 257108, 257414, 257422, 257423, 257425, 257427
Abstract:

An integrated sensor has a magnetic field sensing element and first and second relatively high magnetically permeable members forming a gap, wherein the magnetic field element is disposed within the gap. The magnetically permeable members provide an increase in the flux experienced by the magnetic field sensing element in response to a magnetic field. The integrated sensor can be used as a current sensor, a proximity detector, or a magnetic field sensor.

Magnet Structure
view source
US Patent:

6278269, Aug 21, 2001
Filed:

Mar 8, 1999
Appl. No.:

9/264254
Inventors:

Ravi Vig - Bow NH
Daniel S. Dwyer - Manchester NH
Gregory R. Bowman - Waltham MA
Sandra R. Pinelle - Nashua NH
Terry R. Clapp - Goffstown NH
Assignee:

Allegro Microsystems, Inc. - Worcester MA
International Classification:

G01B 714
US Classification:

3242072
Abstract:

A magnet structure including a magnet and an integral magnetically permeable concentrator and methods for making the same are provided. In one embodiment, the concentrator has a substantially planar base and a post extending normal to the base and the magnetic element is a ring magnet having a central aperture through which the concentrator post extends. The concentrator is comprised of a plastic loaded with one or more magnetically permeable materials to a percentage suitable for providing desired magnetic field characteristics. The magnetic element may be comprised of a conventional magnetic material or a plastic loaded with one or more magnetic materials. An insert molding technique is described in which either the concentrator or magnetic element is prefabricated and inserted into a mold which is subsequently filled with a loaded plastic to provide the other component of the magnet structure. In an alternate fabrication technique, both the concentrator and magnet are sequentially formed by injection molding in the same mold. Also described is a magnet structure including a ring magnet having a central aperture in which a steel rod is disposed.