ALAN L WEEKS
Engineering in Easton, MA
License number
Massachusetts 31625
Issued Date
Feb 15, 1984
Expiration Date
Jun 30, 2018
Type
Mechanical Engineer
Address
Address
Easton, MA 02375
Organization information
See more information about ALAN L WEEKS at bizstanding.comGE Factory Service
448 Tpke St, South Easton, MA 02375
Industry:
Appliance Repair, Small Appliance Repair
Phone:
(866) 530-7025 (Phone)
Darren Gondry
Professional information
Vacuum Roller
US Patent:
6464219, Oct 15, 2002
Filed:
Jun 16, 2000
Appl. No.:
09/595188
Inventors:
Chang J. Yee - Billerica MA
Alan Weeks - South Easton MA
Alan Weeks - South Easton MA
Assignee:
ECRM, Inc. - Tewksbury MA
International Classification:
B65H 2932
US Classification:
271276
Abstract:
A vacuum roller includes a roller having transverse holes and surface holes, in which each of the surface holes intersects with at least one of the transverse holes. A cap mates to a portion of the roller where the transverse holes are exposed. The cap has a cavity that aligns to at least one of the transverse holes and remains substantially stationary during rotation of the roller. A vacuum device evacuates the cavity.
Electronically Controlled Vacuum Pump
US Patent:
6461113, Oct 8, 2002
Filed:
Dec 3, 1999
Appl. No.:
09/454358
Inventors:
Peter W. Gaudet - Hyde Park MA
Robert J. Lepofsky - Wellesley MA
Alan L. Weeks - South Easton MA
Gerald J. Fortier - Plainville MA
Martin Stein - Bedford MA
Steven C. Rosner - Milton MA
Robert J. Lepofsky - Wellesley MA
Alan L. Weeks - South Easton MA
Gerald J. Fortier - Plainville MA
Martin Stein - Bedford MA
Steven C. Rosner - Milton MA
Assignee:
Helix Technology Corporation - Mansfield MA
International Classification:
F04B 4900
US Classification:
417 27, 4174234, 417 442, 417 443
Abstract:
A vacuum system comprises, as an integral assembly, a vacuum pump with drive motor, a purge valve, a roughing valve and an electronic control module. A cryogenic vacuum pump and a turbomolecular vacuum pump are disclosed. The control module has a programmed processor for controlling the motor and valves and is user programmable for establishing specific control sequences. The integral electronic control module is removable from the assembly and is connected to the other devices through a common connector assembly. In the turbomolecular pump system proper introduction of a purge gas through the purge valve is detected by detecting the current load on the pump drive or by detecting foreline pressure. To test the purge gas status, the purge valve may be closed and then opened as drive current or pressure is monitored. After power failure, the controller will continue normal drive of the turbomolecular pump so long as the speed of the pump has remained above a threshold value.
Electronically Controlled Vacuum Pump
US Patent:
2008026, Oct 30, 2008
Filed:
Jul 10, 2008
Appl. No.:
12/170802
Inventors:
Peter W. Gaudet - Hyde Park MA, US
Robert J. Lepofsky - Wellesley MA, US
Alan L. Weeks - South Easton MA, US
Gerald J. Fortier - Plainville MA, US
Stephen R. Matte - Norfolk MA, US
Martin Stein - Bedford MA, US
Steven C. Rosner - Milton MA, US
Robert J. Lepofsky - Wellesley MA, US
Alan L. Weeks - South Easton MA, US
Gerald J. Fortier - Plainville MA, US
Stephen R. Matte - Norfolk MA, US
Martin Stein - Bedford MA, US
Steven C. Rosner - Milton MA, US
International Classification:
F04B 23/08
US Classification:
417205
Abstract:
A vacuum system comprises, as an integral assembly, a vacuum pump with drive motor, a purge valve, a roughing valve and an electronic control module. A cryogenic vacuum pump and a turbomolecular vacuum pump are disclosed. The control module has a programmed processor for controlling the motor and valves and is user programmable for establishing specific control sequences. The integral electronic control module is removable from the assembly and is connected to the other devices through a common connector assembly. In the turbomolecular pump system proper introduction of a purge gas through the purge valve is detected by detecting the current load on the pump drive or by detecting foreline pressure. To test the purge gas status, the purge valve may be closed and then opened as drive current or pressure is monitored. After power failure, the controller will continue normal drive of the turbomolecular pump so long as the speed of the pump has remained above a threshold value. Otherwise the vent valve will have been opened, and a start-up sequence must be initiated. During shutdown, power to the pump drive motor is discontinued and the vent valve is opened before the roughing valve is closed.
Electronically Controlled Vacuum Pump
US Patent:
7413411, Aug 19, 2008
Filed:
Apr 27, 2005
Appl. No.:
11/115774
Inventors:
Peter W. Gaudet - Hyde Park MA, US
Robert J. Lepofsky - Wellesley MA, US
Alan L. Weeks - South Easton MA, US
Gerald J. Fortier - Plainville MA, US
Stephen R. Matté - Norfolk MA, US
Martin Stein - Bedford MA, US
Steven C. Rosner - Milton MA, US
Robert J. Lepofsky - Wellesley MA, US
Alan L. Weeks - South Easton MA, US
Gerald J. Fortier - Plainville MA, US
Stephen R. Matté - Norfolk MA, US
Martin Stein - Bedford MA, US
Steven C. Rosner - Milton MA, US
Assignee:
Brooks Automation, Inc. - Chelmsford MA
International Classification:
F04B 49/00, F04B 17/03, B01D 8/00
US Classification:
417 441, 417 53, 4174234, 417901, 62 555
Abstract:
A vacuum system comprises, as an integral assembly, a vacuum pump with drive motor, a purge valve, a roughing valve and an electronic control module. A cryogenic vacuum pump and a turbomolecular vacuum pump are disclosed. The control module has a programmed processor for controlling the motor and valves and is user programmable for establishing specific control sequences. The integral electronic control module is removable from the assembly and is connected to the other devices through a common connector assembly. In the turbomolecular pump system proper introduction of a purge gas through the purge valve is detected by detecting the current load on the pump drive or by detecting foreline pressure. To test the purge gas status, the purge valve may be closed and then opened as drive current or pressure is monitored. After power failure, the controller will continue normal drive of the turbomolecular pump so long as the speed of the pump has remained above a threshold value.
Turbomolecular Pump With Valves And Integrated Electronic Controls
US Patent:
5443368, Aug 22, 1995
Filed:
Jul 16, 1993
Appl. No.:
8/092692
Inventors:
Alan L. Weeks - South Easton MA
Gerald J. Fortier - Plainville MA
Peter W. Gaudet - Hyde Park MA
Martin Stein - Bedford MA
Steven C. Rosner - Charlestown MA
Robert J. Lepofsky - Wellesley MA
Gerald J. Fortier - Plainville MA
Peter W. Gaudet - Hyde Park MA
Martin Stein - Bedford MA
Steven C. Rosner - Charlestown MA
Robert J. Lepofsky - Wellesley MA
Assignee:
Helix Technology Corporation - Mansfield MA
International Classification:
F04B 4900
US Classification:
417 27
Abstract:
A vacuum system comprises, as an integral assembly, a turbomolecular pump with drive motor, a vent valve, a purge valve, a roughing valve, a heater and an electronic control module. The control module has a programmed processor for controlling the motor and valves and is user programmable for establishing specific control sequences. The integral electronic control module is removable from the assembly and is connected to the other devices through a common connector assembly. Proper introduction of a purge gas through the purge valve is detected by detecting the current load on the pump drive or by detecting foreline pressure. To test the purge gas status, the purge valve may be closed and then opened as drive current or pressure is monitored. After power failure, the controller will continue normal drive of the turbomolecular pump so long as the speed of the pump has remained above a threshold value. Otherwise the vent valve will have been opened, and a start-up sequence must be initiated.
Electronically Controlled Vacuum Pump With Control Module
US Patent:
6022195, Feb 8, 2000
Filed:
Aug 21, 1995
Appl. No.:
8/517091
Inventors:
Peter W. Gaudet - Hyde Park MA
Michael J. Eacobacci - Weymouth MA
Robert J. Lepofsky - Wellesley MA
David E. Roche - Nashua NH
Alan L. Weeks - South Easton MA
Gerald J. Fortier - Plainville MA
Stephen R. Matte - Norfolk MA
Martin Stein - Bedford MA
Steven C. Rosner - Milton MA
Michael J. Eacobacci - Weymouth MA
Robert J. Lepofsky - Wellesley MA
David E. Roche - Nashua NH
Alan L. Weeks - South Easton MA
Gerald J. Fortier - Plainville MA
Stephen R. Matte - Norfolk MA
Martin Stein - Bedford MA
Steven C. Rosner - Milton MA
Assignee:
Helix Technology Corporation - Mansfield MA
International Classification:
F04B 4900
US Classification:
417 27
Abstract:
A vacuum system comprises, as an integral assembly, a vacuum pump with drive motor, a purge valve, a roughing valve and an electronic control module. A cryogenic vacuum pump and a turbomolecular vacuum pump are disclosed. The control module has a programmed processor for controlling the motor and valves and is user programmable for establishing specific control sequences. The integral electronic control module is removable from the assembly and is connected to the other devices through a common connector assembly. In the turbomolecular pump system proper introduction of a purge gas through the purge valve is detected by detecting the current load on the pump drive or by detecting foreline pressure. To test the purge gas status, the purge valve may be closed and then opened as drive current or pressure is monitored. After power failure, the controller will continue normal drive of the turbomolecular pump so long as the speed of the pump has remained above a threshold value.
Electronically Controlled Vacuum Pump
US Patent:
6902378, Jun 7, 2005
Filed:
Mar 8, 2002
Appl. No.:
10/095126
Inventors:
Peter W. Gaudet - Hyde Park MA, US
Robert J. Lepofsky - Wellesley MA, US
Alan L. Weeks - South Easton MA, US
Gerald J. Fortier - Plainville MA, US
Stephen R. Matté - Norfolk MA, US
Martin Stein - Bedford MA, US
Steven C. Rosner - Milton MA, US
Robert J. Lepofsky - Wellesley MA, US
Alan L. Weeks - South Easton MA, US
Gerald J. Fortier - Plainville MA, US
Stephen R. Matté - Norfolk MA, US
Martin Stein - Bedford MA, US
Steven C. Rosner - Milton MA, US
Assignee:
Helix Technology Corporation - Mansfield MA
International Classification:
F04B035/04, F04B049/06
US Classification:
417 27, 417 443, 4174234
Abstract:
A vacuum system comprises, as an integral assembly, a vacuum pump with drive motor, a purge valve, a roughing valve and an electronic control module. A cryogenic vacuum pump and a turbomolecular vacuum pump are disclosed. The control module has a programmed processor for controlling the motor and valves and is user programmable for establishing specific control sequences. The integral electronic control module is removable from the assembly and is connected to the other devices through a common connector assembly. In the turbomolecular pump system proper introduction of a purge gas through the purge valve is detected by detecting the current load on the pump drive or by detecting foreline pressure. To test the purge gas status, the purge valve may be closed and then opened as drive current or pressure is monitored. After power failure, the controller will continue normal drive of the turbomolecular pump so long as the speed of the pump has remained above a threshold value.
High Conductance Water Pump
US Patent:
5483803, Jan 16, 1996
Filed:
Oct 28, 1994
Appl. No.:
8/331170
Inventors:
Stephen R. Matte - Norfolk MA
Alan L. Weeks - South Easton MA
Philip A. Lessard - Boxborough MA
Alan L. Weeks - South Easton MA
Philip A. Lessard - Boxborough MA
Assignee:
Helix Technology Corporation - Mansfield MA
International Classification:
B01D 800
US Classification:
62 555
Abstract:
A cryogenically cooled water pump traps water vapor with a high probability but is open to non-condensing gases for high conductance to a turbomolecular pump. The preferred array is a single cylinder, having a length to diameter ratio of between 0. 5 and 1, concentric with and near to an ambient temperature conduit. A center baffle, preferably of closed frustoconical shape, may be positioned at the center of the array over the upper bearing plate of the turbomolecular pump where it results in minimal reduction in conductance to the pump.