Thomas W Purcell

US Patent:

7725812, May 25, 2010

Filed:

Mar 31, 2000

Appl. No.:

09/539749

Inventors:

Peter A. Balkus - Acton MA, US
Glenn McElhoe - Arlington MA, US
T. Winton Crofton - Newton MA, US
Thomas C. Purcell - Northwood NH, US

Assignee:

Avid Technology, Inc. - Tewksbury MA

International Classification:

G06F 17/21

US Classification:

715202, 715201, 715203, 715243, 715246

Abstract:

An authoring tool has a graphical user interface enabling interactive authoring of a multimedia presentation including temporal and nontemporal media. The graphical user interface enables specification of the temporal and spatial relationships among the media and playback of the presentation with the specified temporal and spatial relationships. The spatial and temporal relationships among the media may be changed independently of each other. The presentation may be viewed interactively under the control of the author during the authoring process without encoding the audio and video data into a streaming media data file for combination with the other media, simulating behavior of a browser that would receive a streaming media data file. The multimedia presentation may include elements that initiate playback of the presentation from a specified point in time. After authoring of the presentation is completed, the authoring tool assists in encoding and transferring the presentation for distribution.

US Patent:

8092498, Jan 10, 2012

Filed:

Jul 8, 2008

Appl. No.:

12/217685

Inventors:

Srinath Samudrala - Pasadena CA, US
Thomas Purcell - Del Mar CA, US

Assignee:

Alphatec Spine, Inc. - Carlsbad CA

International Classification:

A61B 17/70
A61B 17/04

US Classification:

606250, 606278, 606264

Abstract:

A surgical implant assembly and a method for securing a fixation rod, where the assembly is capable of being secured to a bone structure are disclosed. The assembly includes at least two rigid structures configured to be secured to the bone structure. The structures include a distal portion for receiving a portion of the fixation rod therebetween, a tab positioned at a distal point of the distal portion, a screw compression nut and a distal expansion member coupled to the screw compression nut that are driven down the rigid structures, and a rod compression nut and a proximal expansion member coupled to the rod compression nut that engage the rigid structures so that the fixation rod is disposed between the combination the screw compression nut and the distal expansion member and the combination of the rod compression nut and the proximal expansion member.

US Patent:

20020007227, Jan 17, 2002

Filed:

Feb 21, 2001

Appl. No.:

09/790218

Inventors:

Thomas Prentice - Westford MA, US
Brian Prescott - Fremont NH, US
Thomas Purcell - Haverhill MA, US
Stephen Helm - Windham NH, US
Donald Martin - Lawrence MA, US
Kevin Brown - Sandown NH, US

International Classification:

G06F019/00

US Classification:

700/121000, 700/003000

Abstract:

Embodiments of the present invention provide a multiple head dispensing system having independently controlled dispensing heads. Each of the dispensing heads may be independently controlled to provide simultaneous, asynchronous operation and to allow dispensing of different materials onto substrates. Independent control of the dispensing heads is accomplished under the control of a controller in conjunction with a plurality of gantry systems, each of which positions one of the multiple dispensing heads over a substrate that is to receive dispensing material. In some embodiments, each gantry system utilizes two drive mechanisms, arranged in parallel, that provide movement of the dispensing head over an x-y plane. Multiple conveyor systems are utilized that allow parallel processing of work products in the dispensing system.

US Patent:

20040148763, Aug 5, 2004

Filed:

Sep 12, 2003

Appl. No.:

10/661830

Inventors:

David Peacock - Billerica MA, US
Thomas Prentice - Westford MA, US
Brian Prescott - Fremont NH, US
Thomas Purcell - Atkinson NH, US
Gary Freeman - Attleboro MA, US
Kevin Courtemanche - Newburyport MA, US
Scott Reid - Bradford MA, US
Earl Sweet - Danville NH, US
Murray Scott - Hudson NH, US
Robert Tracy - Haverhill MA, US
Paul Hemond - Attleboro MA, US

International Classification:

B23P019/00

US Classification:

029/739000

Abstract:

A system and method for performing operations on a plurality of workpieces comprises an operations portion and a load/unload portion, a plurality of independently operable work heads located in the operations portion, the work heads each being operable to perform work on the plurality of workpieces, a transfer system, the transfer system including a plurality of mounting devices, the transfer system being operable to deliver the mounting devices into and out of the operations portion of the system, the plurality of workpieces being contained in workpiece-holding structures, the workpiece-holding structures being mountable on the plurality of mounting devices, wherein one of the plurality of mounting devices is positioned in the operations portion of the system and work is performed on the plurality of workpieces by at least one of the plurality of independently operable work heads while another one of the plurality of mounting devices is positioned in the load/unload portion of the system and workpiece-holding structures are unloaded from the mounting devices.

US Patent:

20040268224, Dec 30, 2004

Filed:

Jul 8, 2004

Appl. No.:

10/887072

Inventors:

Peter Balkus - Acton MA, US
Glenn McElhoe - Arlington MA, US
T. Crofton - Newton MA, US
Thomas Purcell - Northwood NH, US

International Classification:

G06F017/00

US Classification:

715/500100

Abstract:

An authoring tool has a graphical user interface enabling interactive authoring of a multimedia presentation including temporal and nontemporal media. The graphical user interface enables specification of the temporal and spatial relationships among the media and playback of the presentation with the specified temporal and spatial relationships. The spatial and temporal relationships among the media may be changed independently of each other. The presentation may be viewed interactively under the control of the author during the authoring process without encoding the audio and video data into a streaming media data file for combination with the other media, simulating behavior of a browser that would receive a streaming media data file. The multimedia presentation may include elements that initiate playback of the presentation from a specified point in time. After authoring of the presentation is completed, the authoring tool assists in encoding and transferring the presentation for distribution. Information about the distribution format and location may be stored as user-defined profiles. Communication with the distribution location may be tested and presentation and the distribution information may be audited prior to encoding and transfer to reduce errors. A presentation is encoded according to the defined temporal and spatial relationships and the distribution format and location information to produce and encoded presentation. The encoded presentation and any supporting media data are transferred to the distribution location, such as a server. A streaming media server may be used for streaming media, whereas other data may be stored on a conventional data server. Accounts may be provided for a streaming media server for authors to publish their presentations. The authoring tool may be associated with a service that uses the streaming media server. Such streaming media servers also may be a source of stock footage for use by authors.

US Patent:

20110112586, May 12, 2011

Filed:

Nov 10, 2010

Appl. No.:

12/943210

Inventors:

Jeffrey Allen Guyer - Boston MA, US
Thomas Purcell - Del Mar CA, US
Nathan Meyer - Vista CA, US
Ali Araghi - Phoenix AZ, US
Javier Garcia-Bengochea - Jacksonville FL, US
Carl Lauryssen - Beverly Hills CA, US
Moran Lorio - Bristol TN, US

International Classification:

A61B 17/56

US Classification:

606 86 A, 606 86 R

Abstract:

A method and device for attaching a curvilinear access device having a movable top and an expandable working portal to the spine, the attachment including a holding arm assembly, posterior tang, anterior tang and/or a portal fixation pin.

US Patent:

62246755, May 1, 2001

Filed:

Dec 13, 1999

Appl. No.:

9/459784

Inventors:

Thomas C. Prentice - Westford MA
Brian P. Prescott - Fremont NH
Thomas Purcell - Haverhill MA
Stephen S. Helm - Windham NH
Donald J. Martin - Lawrence MA
Kevin Brown - Sandown NH

Assignee:

Speedline Technologies, Inc. - Haverhill MA

International Classification:

B05C 1100

US Classification:

118669

Abstract:

Embodiments of the present invention provide a multiple head dispensing system having independently controlled dispensing heads. Each of the dispensing heads may be independently controlled to provide simultaneous, asynchronous operation and to allow dispensing of different materials onto substrates. Independent control of the dispensing heads is accomplished under the control of a controller in conjunction with a plurality of gantry systems, each of which positions one of the multiple dispensing heads over a substrate that is to receive dispensing material. In some embodiments, each gantry system utilizes two drive mechanisms, arranged in parallel, that provide movement of the dispensing head over an x-y plane. Multiple conveyor systems are utilized that allow parallel processing of work products in the dispensing system.

US Patent:

63228548, Nov 27, 2001

Filed:

Aug 22, 2000

Appl. No.:

9/643446

Inventors:

Thomas Purcell - Haverhill MA
Thomas C. Prentice - Westford MA
Brian P. Prescott - Fremont NH

Assignee:

Speedline Technologies, Inc. - Franklin MA

International Classification:

B05D 102

US Classification:

427421

Abstract:

A multiple head dispensing system and method is provided. In one embodiment, a dispensing system for dispensing material onto a substrate includes a plurality of independently operable dispensing heads, and a conveyor system, disposed beneath the plurality of dispensing heads, having a first track and a second track, each of which is constructed and arranged to convey substrates to working positions beneath the dispensing heads. The dispensing system may include a plurality of gantry systems, each of which is coupled to one of the plurality of independently operable dispensing heads.