John G Cronk Deceased22 Harding Rd, Portsmouth, NH 03801
John Cronk Phones & Addresses
22 Harding Rd, Portsmouth, NH 03801 603-4369308
Strafford, NH
Mentions for John G Cronk
Publications & IP owners
Us Patents
Infrared Receiver
US Patent:
D466106, Nov 26, 2002
Filed:
Jun 4, 2001
Appl. No.:
29/142898
Inventors:
John M. Cronk - Barrington NH
Assignee:
Russound/FMP, Inc. - Newmarket NH
International Classification:
1499
US Classification:
D14217
Audio System Keypad
US Patent:
D481706, Nov 4, 2003
Filed:
Aug 8, 2002
Appl. No.:
29/165366
Inventors:
Allen Boothroyd - Cambridge, GB
William Ramsdell - Barrington NH
Andrew Lewis - Lee NH
John Cronk - Strafford NH
Joshua Cooper - Rochester NH
William Ramsdell - Barrington NH
Andrew Lewis - Lee NH
John Cronk - Strafford NH
Joshua Cooper - Rochester NH
Assignee:
Russound/FMP, Inc. - Newmarket NH
International Classification:
1499
US Classification:
D14217
Distributed Intercom System With Audio Bus
US Patent:
8189753, May 29, 2012
Filed:
Apr 10, 2008
Appl. No.:
12/082408
Inventors:
John M. Cronk - Strafford NH, US
George W. Ramsdell - Barrington NH, US
George W. Ramsdell - Barrington NH, US
Assignee:
Russound/FMP Incorporated - Newmarket NH
International Classification:
H04M 1/00
H04M 1/60
H04M 9/00
H04M 1/60
H04M 9/00
US Classification:
379159, 37916705, 37916708, 37916714
Abstract:
A distributed intercom system that interconnects a hub and various keypad and door zone units having microphones and/or speakers via CAT5 or similar cable having multiple twisted pairs. Audio is carried between all devices over a first audio wire pair, in analog signal format, forming an audio bus. Audio twisted pair acts as a data communication bus for control messages. One or more of receiver units may be active, while only one keypad device can be individually instructed to connect its corresponding microphone circuit to the audio bus. Determination of which unit is selected to be the transmitter occurs under the control of the hub. For example, in a case where a first user wishes to speak to another user in a different room, the first user presses a “talk” button at his keypad, causing that keypad to send out a message on a data communication bus to the hub. The hub unit then sends a reply on the data communication bus that grants permission to the first user's keypad to couple its microphone to the audio bus. The message is interpreted by the other stations as an instruction to keep their own microphones disconnected from the bus.
Amplified Control Keypad
US Patent:
D445095, Jul 17, 2001
Filed:
Oct 31, 2000
Appl. No.:
D/132002
Inventors:
Oscar A. Ciornei - Portsmouth NH
Joshua M. Cooper - Portsmouth NH
John M. Cronk - Barrington NH
G. William Ramsdell - Barrington NH
Jeffrey D. Myatt - Manchester NH
Joshua M. Cooper - Portsmouth NH
John M. Cronk - Barrington NH
G. William Ramsdell - Barrington NH
Jeffrey D. Myatt - Manchester NH
Assignee:
Russound/FMP, Inc. - Newmarket NH
International Classification:
1303
US Classification:
D13164
Amplified Control Keypad
US Patent:
D452485, Dec 25, 2001
Filed:
Oct 31, 2000
Appl. No.:
D/131996
Inventors:
Oscar A. Ciornei - Portsmouth NH
Joshua M. Cooper - Portsmouth NH
John M. Cronk - Barrington NH
G. William Ramsdell - Barrington NH
Jeffrey D. Myatt - Manchester NH
Joshua M. Cooper - Portsmouth NH
John M. Cronk - Barrington NH
G. William Ramsdell - Barrington NH
Jeffrey D. Myatt - Manchester NH
Assignee:
Russound/FMP, Inc. - Newmarket NH
International Classification:
1303
US Classification:
D13164
Amplified Control Keypad
US Patent:
D444774, Jul 10, 2001
Filed:
Oct 31, 2000
Appl. No.:
D/131963
Inventors:
Oscar A. Ciornei - Portsmouth NH
Joshua M. Cooper - Portsmouth NH
John M. Cronk - Barrington NH
G. William Ramsdell - Barrington NH
Jeffrey D. Myatt - Manchester NH
Joshua M. Cooper - Portsmouth NH
John M. Cronk - Barrington NH
G. William Ramsdell - Barrington NH
Jeffrey D. Myatt - Manchester NH
Assignee:
Russound/FMP, Inc. - Newmarket NH
International Classification:
1303
US Classification:
D13164
Amplified Control Keypad
US Patent:
D444775, Jul 10, 2001
Filed:
Oct 31, 2000
Appl. No.:
D/131995
Inventors:
Oscar A. Ciornei - Portsmouth NH
Joshua M. Cooper - Portsmouth NH
John M. Cronk - Barrington NH
G. William Ramsdell - Barrington NH
Jeffrey D. Myatt - Manchester NH
Joshua M. Cooper - Portsmouth NH
John M. Cronk - Barrington NH
G. William Ramsdell - Barrington NH
Jeffrey D. Myatt - Manchester NH
Assignee:
Russound/FMP, Inc. - Newmarket NH
International Classification:
1303
US Classification:
D13164
Amplified Control Keypad
US Patent:
D445406, Jul 24, 2001
Filed:
Oct 31, 2000
Appl. No.:
D/131966
Inventors:
Oscar A. Ciornei - Portsmouth NH
Joshua M. Cooper - Portsmouth NH
John M. Cronk - Barrington NH
G. William Ramsdell - Barrington NH
Jeffrey D. Myatt - Manchester NH
Joshua M. Cooper - Portsmouth NH
John M. Cronk - Barrington NH
G. William Ramsdell - Barrington NH
Jeffrey D. Myatt - Manchester NH
Assignee:
Russound/FMP, Inc. - Newmarket NH
International Classification:
1303
US Classification:
D13164
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