Frederick Paul Conforti
Architects at West St, Wheaton, IL
License number
Colorado 203235
Issued Date
Apr 29, 1996
Renew Date
Nov 1, 2013
Expiration Date
Oct 31, 2015
Type
Architect
Address
Address
265 N West St West, Wheaton, IL 60187
Professional information
Miniature Photoelectric Sensing Chamber
US Patent:
6521907, Feb 18, 2003
Filed:
Apr 24, 2000
Appl. No.:
09/556210
Inventors:
Thomas W. Shoaff - Warrenville IL
Kalvin Watson - Chicago IL
Dragan Petrovic - Geneva IL
George A. Schoenfelder - Batavia IL
Frederick J. Conforti - Wheaton IL
James F. Wiemeyer - Homer Township IL
Kalvin Watson - Chicago IL
Dragan Petrovic - Geneva IL
George A. Schoenfelder - Batavia IL
Frederick J. Conforti - Wheaton IL
James F. Wiemeyer - Homer Township IL
Assignee:
Pittway Corporation - Chicago IL
International Classification:
G08B 1710
US Classification:
250573, 356628, 250574
Abstract:
A low profile, low volume smoke chamber displaces a light source, such as a light emitting diode or laser diode, and a sensor, such as photodiode or phototransistor, to the exterior of the sensing volume. A symmetrical sensing volume results which can be coupled to symmetrical input/output ports via a generally U-shaped flow path. A two part sensing chamber housing is formed with a lower cylindrical base portion and an upper cylindrical cover portion which slideably engage one another. At least the upper cylindrical portion carries a plurality of grooves for suppression of reflections and collection of dust. An exterior end of the upper portion carries a plurality of spaced apart openings which can be filled with a screen. A reduced sensing volume in combination with a selected screen size produces an acceptable signal to noise ratio and response rate while still excluding insects and other non-smoke related particulate matter.
Wireless Access System
US Patent:
5936544, Aug 10, 1999
Filed:
Sep 30, 1997
Appl. No.:
8/941153
Inventors:
Eric V. Gonzales - Aurora IL
Dennis Charlesbois - Aurora IL
Frederick J. Conforti - Wheaton IL
Ming Ng - Chicago IL
Cornelio M. Varilla - Des Plaines IL
Dennis Charlesbois - Aurora IL
Frederick J. Conforti - Wheaton IL
Ming Ng - Chicago IL
Cornelio M. Varilla - Des Plaines IL
Assignee:
Pittway Corporation - Chicago IL
International Classification:
H01B 100
US Classification:
34082534
Abstract:
A modular door access control system incorporates a plurality of wireless door modules. Access request signals are transmitted to a remote access control unit. The control unit transmits access authorizing control signals to a respective one of the modules. A newly installed module, in a selected mode, enters into communication with the unit. The unit in turn transmits an identifier to the module for use in identifying itself to the unit subsequently in response to a received access request.