JOHN A UMINA
Engineering in Waltham, MA
License number
Massachusetts 21902
Issued Date
Feb 7, 2008
Type
Engineer in Training
Address
Address
Waltham, MA 02451
Organization information
See more information about JOHN A UMINA at bizstanding.comJOHN UMINA, INC
104 Elson Rd, Waltham, MA 02451
Registration:
Oct 11, 2002
State ID:
020646822
Business type:
Domestic Profit Corporation
President:
John D Umina (President), 104 Elson Rd, Waltham, MA 02451 (Physical)
Professional information
Device And Apparatus For Holding A Transducer
US Patent:
7247979, Jul 24, 2007
Filed:
Nov 7, 2005
Appl. No.:
11/269038
Inventors:
John A. Umina - Waltham MA, US
Assignee:
GE Security, Inc. - Austin TX
International Classification:
H01L 41/053
US Classification:
310348, 310311, 738665
Abstract:
A holder for a transducer having a mounting portion, a coupler, and a clamping portion is disclosed. The mounting portion has a through hole with a conical seat disposed therein, with at least a portion of the through hole being configured to receive the transducer. The coupler is secured to the transducer and has a first interface surface configured to sit on the conical seat, and a second interface surface disposed on an opposite side to that of the first interface surface. The clamping portion has a through hole and a clamping surface, at least a portion of the through hole is configured to receive the transducer, and the clamping surface is configured to press against the second interface surface of the coupler. The clamping portion and mounting portion are configured to securely capture the coupler therebetween, thereby securely positioning the transducer relative to the mounting portion.
Apparatus And Method For Refinishing A Surface In-Situ
US Patent:
2012000, Jan 5, 2012
Filed:
Jul 1, 2010
Appl. No.:
12/828416
Inventors:
David A. Hudson - Stoughton MA, US
Craig Karl Wallace - Braintree MA, US
Michael McLaughlin - Stoughton MA, US
John A. Umina - Waltham MA, US
John D. Andrews - Boxborough MA, US
Richard D. Regan - Framingham MA, US
Craig Karl Wallace - Braintree MA, US
Michael McLaughlin - Stoughton MA, US
John A. Umina - Waltham MA, US
John D. Andrews - Boxborough MA, US
Richard D. Regan - Framingham MA, US
Assignee:
ARTISAN INDUSTRIES INC. - Waltham MA
International Classification:
B24B 51/00, B24B 15/04
US Classification:
451 5, 451252
Abstract:
A rotary grinding system includes a support frame and a grinding assembly coupled to the support frame for longitudinal movement, with respect to a workpiece attached to the support frame. A radial arm is suspended below the grinding assembly and rotated in a plane parallel to the workpiece. A grinding wheel traverses the radial arm, thereby working a circular, annular or sector portion of the workpiece. The height, and therefore the depth of cut, of the grinding wheel may be precisely adjusted via a single point adjustment screw or the like. Optionally, the grinding system may be controlled by a computer numeric controller (CNC) to automatically refinish programmed portions or all of the workpiece. Eccentric pins extending from the support frame and into the workpiece may be used to adjust the lateral position of the support frame, relative to the workpiece. Support members may be used to offload the weight of at least a portion of the grinding assembly, thereby relieving bearings of this weight, such as during shipment or storage of the system.
Ultrasonic Flow Rate Measurement Method And System
US Patent:
7523676, Apr 28, 2009
Filed:
Dec 7, 2006
Appl. No.:
11/567818
Inventors:
Xue-Song Scott Li - Lexington MA, US
John Albert Umina - Waltham MA, US
Xiaolei Shirley Ao - Lexington MA, US
John Albert Umina - Waltham MA, US
Xiaolei Shirley Ao - Lexington MA, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
G01F 1/66
US Classification:
7386125, 702 54
Abstract:
A method of determining the flow rate of a fluid in a conduit. Ultrasonic energy is directed through the conduit along multiple paths. The ultrasonic energy is detected and measured using a range gated Doppler technique to determine the velocity of the fluid at several points in the conduit. These point velocities are used to calculate the average flow rate of the fluid in the conduit.
Ultrasonic Flow Meter System
US Patent:
7581453, Sep 1, 2009
Filed:
Dec 29, 2006
Appl. No.:
11/617817
Inventors:
Xiaolei Shirley Ao - Lexington MA, US
John Albert Umina - Waltham MA, US
Edward R. Furlong - Beverly MA, US
John Albert Umina - Waltham MA, US
Edward R. Furlong - Beverly MA, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
G01F 1/66
US Classification:
7386127
Abstract:
An ultrasonic flow meter system includes transducers arranged with respect to a conduit to define at least one chordal path through fluid flowing in the conduit, and at least one transmitting transducer and receiving transducer pair on the chordal path for generating a transit time signal. At least one receiving transducer is positioned to receive scattered energy to generate a range gated Doppler signal. The system further includes a processing subsystem for exciting the at least one transmitting transducer. The processing subsystem is responsive to the transit time signal and the range gated Doppler signal and configured to generate a velocity profile and a mean velocity of the fluid in the conduit.
Acoustic Waveguide Assemblies
US Patent:
2013032, Dec 12, 2013
Filed:
Aug 19, 2013
Appl. No.:
13/970136
Inventors:
Jin Chang Xu - Andover MA, US
John Albert Umina - Waltham MA, US
John Albert Umina - Waltham MA, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
G10K 11/00
US Classification:
381338, 181196
Abstract:
Acoustic waveguides are disclosed for mounting to a conduit. The acoustic waveguides provide a mounting area that minimizes the effect of the mount on the acoustic wave traveling through the waveguide while providing an effective seal, even under high pressure conditions.
Acoustic Waveguide Assemblies
US Patent:
8511424, Aug 20, 2013
Filed:
Dec 8, 2011
Appl. No.:
13/314963
Inventors:
Xiaolei Shirley Ao - Lexington MA, US
Jin Chang Xu - Andover MA, US
John Albert Umina - Waltham MA, US
Jin Chang Xu - Andover MA, US
John Albert Umina - Waltham MA, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
G10K 11/00
US Classification:
181196
Abstract:
Acoustic waveguides are disclosed for mounting to a conduit. The acoustic waveguides provide a mounting area that minimizes the effect of the mount on the acoustic wave traveling through the waveguide while providing an effective seal, even under high pressure conditions.