John Mackellar resumes & CV records
Resumes
John D Mackellar, 775753 Highway 85 N UNIT 4459, Crestview, FL 32536
John Mackellar Phones & Addresses
Crestview, FL
Maricopa, AZ
96 Weatherburn Ter, Martinsburg, WV 25401 304-2628883 304-2648184
57 Thornberry Dr, Martinsburg, WV 25401 304-2628883 304-7547775
Milwaukie, OR
11970 State Route 286, Kevil, KY 42053 270-4882306 270-4883217
Bath, PA
57 Thornberry Dr, Martinsburg, WV 25403 304-7547775
Social networks
John D Mackellar
Linkedin
Work
Position:
Service Occupations
Education
Degree:
Bachelor's degree or higher
Mentions for John D Mackellar
Publications & IP owners
Wikipedia
Michael Mackellar
Michael John Randal MacKellar (born 27 October 1938) is an Australian politician and was the Liberal Member for Warringah from 1969 until 1994. He is the current president of the ...
John S. Folk
A special meeting of NYPD police captains was held shortly afterwards, which included Superintendent Campbell and Inspector John MacKellar, to appoint a committee to handle the ...
Us Patents
Underwater Directional Guidance Apparatus
US Patent:
3986161, Oct 12, 1976
Filed:
Apr 7, 1975
Appl. No.:
5/565367
Inventors:
John A. MacKellar - Portland OR
Assignee:
Sea-Scan, Inc. - Portland OR
International Classification:
G01S 380
US Classification:
340 6R
Abstract:
Ultrasonic directional guidance apparatus for use by divers underwater includes a pair of compact, self-contained units -- a pinger for generating omnidirectional signal bursts, and a unidirectionally sensitive hydrophone for use in locating the pinger. For economy of manufacture, the units ae structurally similar and have substantially identical watertight housings. A significant feature shared by the units is an easily operated switching arrangement for turning the units off and on, or for changing operating modes, i. e. , hydrophone sensitivity or pinger signal transmission rate. The disclosed switching arrangement includes a collar carrying a magnet and mounted on the housing for rotation relative to it. Magnetic field-actuated switches inside the housing are selectively actuated to energize the units or change operating modes by rotating the collar to different detented positions, one for each switch, in which the magnet is sufficiently close for its field to actuate the switch.
NOTICE: You may not use BackgroundCheck or the information it provides to make decisions about employment, credit, housing or any other purpose that would require Fair Credit Reporting Act (FCRA) compliance. BackgroundCheck is not a Consumer Reporting Agency (CRA) as defined by the FCRA and does not provide consumer reports.