Ronald P Roberts

US Patent:

7306446, Dec 11, 2007

Filed:

May 21, 2004

Appl. No.:

10/851284

Inventors:

Douglas Sabin - Marblehead MA, US
Paul Swenson - South Hamilton MA, US
Ronald Roberts - Melrose MA, US

Assignee:

Kortec, Inc. - Ipswich MA

International Classification:

B29C 45/23

US Classification:

425130, 425564, 425572

Abstract:

Disclosed herein are a method and apparatus for combining two or more streams of a polymeric material to form a plastic object. The method and apparatus are capable of ending an interior layer of the plastic object at a desired length to avoid the need to clean selected surfaces of components used to form the plastic object. The method and apparatus increase the velocity of the polymeric material used to form the plastic object in certain components used to form the plastic object. The increase in the velocity of the polymeric material facilitates the ending of the interior layer of the plastic object.

US Patent:

7399442, Jul 15, 2008

Filed:

Jul 7, 2005

Appl. No.:

11/177464

Inventors:

Douglas Sabin - Marblehead MA, US
Paul Swenson - South Hamilton MA, US
Ronald Roberts - Melrose MA, US

Assignee:

Kortec, Inc. - Ipswich MA

International Classification:

B29C 45/22

US Classification:

2643288, 425130

Abstract:

Disclosed herein are methods and systems for forming a plurality of multiple layer plastic articles. The methods and systems utilize shooting pot technology in combination with a combination of thermal control elements and in some instances, specialized flow bore geometries to control a thermal property and a flow parameter of selected polymeric material flowing through the system to mold the plurality of multiple layer plastic articles. Both the systems and methods are well suited for use to perform simultaneous flow injection or sequential flow injection to form the plurality of multiple layer plastic articles. The systems and methods described therein beneficially reduce the mold cavity pitch size for multiple layer molds used with systems having shooting pot technology to a mold cavity pitch size found on conventional monolayer molds to provide a plurality of multiple layer plastic articles having a cost similar to monolayer plastic articles.

US Patent:

D678583, Mar 19, 2013

Filed:

Feb 22, 2012

Appl. No.:

29/413930

Inventors:

Anil Jeswani - Beverly MA, US
Ronald Roberts - Melrose MA, US
Robert Schmitt - Nottingham NH, US

Assignee:

OSRAM SYLVANIA Inc. - Danvers MA

International Classification:

2605

US Classification:

D26 74

US Patent:

D679043, Mar 26, 2013

Filed:

Feb 22, 2012

Appl. No.:

29/413937

Inventors:

Anil Jeswani - Beverly MA, US
Ronald Roberts - Melrose MA, US
Robert Schmitt - Nottingham NH, US

Assignee:

OSRAM SYLVANIA Inc. - Danvers MA

International Classification:

2605

US Classification:

D26 74

US Patent:

D679044, Mar 26, 2013

Filed:

Apr 9, 2012

Appl. No.:

29/417802

Inventors:

Anil Jeswani - Beverly MA, US
Ronald Roberts - Melrose MA, US
Fernando Aguiar - Westport MA, US
Sara Lincoln - Somerville MA, US

Assignee:

OSRAM SYLVANIA Inc. - Danvers MA

International Classification:

2605

US Classification:

D26 74

US Patent:

20120274217, Nov 1, 2012

Filed:

Apr 30, 2012

Appl. No.:

13/460798

Inventors:

Robert Harrison - North Andover MA, US
Napoli Oza - Boise ID, US
Ming Li - Acton MA, US
Ronald Roberts - Melrose MA, US
Anil Jeswani - Beverly MA, US

Assignee:

OSRAM SYLVANIA INC. - Danvers MA

International Classification:

H05B 37/02

US Classification:

315151

Abstract:

A luminaire is providing, having a substrate of a particular shape and a plurality of solid state light sources mounted thereon. The plurality has a measurable characteristic and includes an adjustable solid state light source, such that the characteristic changes in response to adjustment thereof. The luminaire also includes a sensor that detects the characteristic from outputted light, compares it to a baseline value and, based on the comparison, so adjusts the adjustable solid state light source. The luminaire also includes a reflector with a lower edge that conforms to the particular shape of the substrate, and reflects outputted light from the plurality so that it exits past the reflector's upper edge. The luminaire also includes a lightguide having an input that is surrounded by the reflector and captures a portion of the outputted light so as to provide the captured outputted light to the sensor.

US Patent:

20130214118, Aug 22, 2013

Filed:

Feb 20, 2012

Appl. No.:

13/400463

Inventors:

Anil Jeswani - Beverly MA, US
Fernando Aguiar - Westport MA, US
Ronald Roberts - Melrose MA, US
Sara Lincoln - Somerville MA, US

Assignee:

OSRAM SYLVANIA INC. - Danvers MA

International Classification:

F21V 21/104

US Classification:

248613, 248343

Abstract:

A luminaire suspension mechanism is provided. The mechanism includes two arms, two friction elements, and a compression element. Each arm includes three segments and two connection points. For each arm, a first segment attaches to a second segment at a connection point, forming a first angle, while the second segment attaches to a third segment at another connection point, forming a second angle. Each friction element is connected to a respective arm's third segment. Each arm's first segment is compressably attached to the compression element, such that a force applied to at least one of the arm-friction element pairs results in the compression element and that at least one pair exerting a suspending force that suspends a luminaire to which the luminaire suspension mechanism is attached within a cavity. The compression element may be a torsion spring, and the angles formed by the arm segments may be obtuse.

US Patent:

20220286767, Sep 8, 2022

Filed:

Mar 4, 2022

Appl. No.:

17/686746

Inventors:

- Santa Barbara CA, US
Ronald W. Roberts - Melrose MA, US

International Classification:

H04R 1/10

Abstract:

A headset includes a first earcup, a second earcup, and a headband. The headband includes a connecting member having a first end coupled to the first earcup and a second end coupled to the second earcup. A cushion is disposed below the connecting member. The cushion extends between the first end and the second end. The cushion includes a middle region configured to have a first density and adjacent side regions configured to have a second density that is higher than the first density.