ROGER E DENNISON
Engineering in Lexington, MA
License number
Massachusetts 28128
Issued Date
Feb 27, 1976
Expiration Date
Jun 30, 2018
Type
Mechanical Engineer
Address
Address
Lexington, MA 02421
Professional information
Process-Loop Monitor System And Method
US Patent:
6487650, Nov 26, 2002
Filed:
Mar 16, 2000
Appl. No.:
09/526668
Inventors:
Roger Dennison - Lexington MA 02421
International Classification:
G06F 1300
US Classification:
711217, 711159, 711167, 711173, 711220
Abstract:
Methods of maintaining a record of a samples of a time-dependent variable in a computer memory whereby any period of time extending backward from the present, having a duration between a pre-determined minimum and a pre-determined maximum, is represented by samples whose spacing is short in relation to the duration of the time period represented.
Flowmeter For Compressed-Air Distribution Systems
US Patent:
6802217, Oct 12, 2004
Filed:
Nov 26, 2002
Appl. No.:
10/304800
Inventors:
Roger Dennison - Lexington MA
Assignee:
CDI Meters, Inc. - Belmont MA
International Classification:
G01F 168
US Classification:
7320411
Abstract:
A flowmeter which clamps around and seals to a pipe with probes projecting into the pipe through holes in the pipe, the useful separation of the probes being achieved by their entering the pipe through separate holes.
Leak Detector For Fluid Distribution Systems Serving Intermittent Loads
US Patent:
5228329, Jul 20, 1993
Filed:
Dec 27, 1991
Appl. No.:
7/815055
Inventors:
Roger E. Dennison - Lexington MA
Assignee:
Conservation Devices, Inc. - Watertown MA
International Classification:
G01M 326, G01N 2572
US Classification:
73 491
Abstract:
A leak detector is proposed for fluid systems serving intermittent loads. The device generates a signal representative of the minimum level of flow occurring from time to time, this level of flow being taken as the rate of leakage. On the basis of this signal, the device generates outputs indicative of the presence and relative magnitude of leakage. A preferred form of the device monitors flow with a thermal fluid flow detector which is adapted to be removably mounted on a distribution system pipe and to be sufficiently inexpensive to permit wide application of the device to small fluid distribution systems, such as residential water systems.