Scott B Bramow

US Patent:

43254276, Apr 20, 1982

Filed:

Nov 6, 1979

Appl. No.:

6/092417

Inventors:

Scott B. Bramow - Oak Creek WI
Thomas M. Holloway - Mukwonago WI

Assignee:

Johnson Controls, Inc. - Milwaukee WI

International Classification:

F25B 2900
G05D 2300

US Classification:

165 27

Abstract:

A dual thermostat apparatus includes two thermostats which generate fluid control signals proportional to room air temperature. The thermostats are matched leakport pressure sensors having a signal orifice and a bimetal lid element to generate back pressure signals linearly related to temperature. The bimetal elements have adjustment cams to set the reference position with respect to the orifice. The cams are connected to a common shaft and dial to provide simultaneous and opposite readjustment with respect to the reference pressures. The signals are applied to separate signal chambers of the duplex relay, with a pressure regulator connected to the heat signal chamber to limit the operative pressure level of the heating signal to a selected maximum switchover pressure. The duplex relay controls a pressure supply valve for supplying a proportional pressure signal to a common output line to pneumatic operators of a heating valve and a cooling valve. The regulator and duplex relay create a control in which the heat pressure signal operates to one side of said reference pressure and the cooling signal controls to the opposite side of such reference pressure.

US Patent:

42830079, Aug 11, 1981

Filed:

Nov 9, 1979

Appl. No.:

6/092703

Inventors:

Scott B. Bramow - Oak Creek WI
Richard N. Laakaniemi - Hales Corners WI
Paul E. Wichman - Brookfield WI

Assignee:

Johnson Controls, Inc. - Milwaukee WI

International Classification:

F24F 314

US Classification:

236 44C

Abstract:

A mixed air conditioning controller is formed as a factory assembled and adjusted unit in a compact housing, with simple and direct input/output field connectors. Various temperature and humidity input devices are field connected to produce a sequenced control of the air dampers and mechanical cooling and heating devices, as well as auxiliary devices. The controller includes a primary input related to room demand, an outside air temperature input, with an interlocked control to the damper, a fan status input, a minimum air supply control and a by-pass switch having a low limit input. The logic network connecting the input/output includes pneumatic switching, pressure selecting and comparing devices of a diaphragm-controlled-orifice construction connected to function as fluidic repeaters, pressure regulating valves and pressure isolating and switching devices. The controller includes a conditioning channel and a damper channel. An outside air interlock controls the damper channel and a presettable switch controls the minimum air supply control.

US Patent:

43980872, Aug 9, 1983

Filed:

Jun 21, 1982

Appl. No.:

6/390515

Inventors:

Scott B. Bramow - Oak Creek WI
Louis J. Crum - Port Washington WI
William J. Riebe - West Allis WI

Assignee:

Johnson Controls, Inc. - Milwaukee WI

International Classification:

G06M 112

US Classification:

235200PF

Abstract:

A square root signal extractor generates an output signal which is a square root function of an input signal. First and second diaphragm amplifiers have cascaded output chambers connected to a high gain output amplifier. The first and second amplifiers are connected as the non-inverting input and the inverting input respectively of the operational amplifier. A high gain output diaphragm amplifier is connected to the inverting amplifier output. The output diaphragm amplifier is constructed such that only a low level input pressure change is required to create a full swing of the output pressure. A non-linear input restrictor and a linear feedback resistor are connected to the input chamber of the inverting amplifiers. The feedback resistor has a significantly greater resistance than the input resistor. The non-inverting diaphragm amplifier is connected to the transmitter by a fluid repeater.

US Patent:

41991010, Apr 22, 1980

Filed:

Jan 26, 1979

Appl. No.:

6/006865

Inventors:

Scott B. Bramow - Oak Creek WI
Richard N. Laakaniemi - Hales Corners WI
Paul E. Wichman - Brookfield WI

Assignee:

Johnson Controls, Inc. - Milwaukee WI

International Classification:

G05D 2313

US Classification:

236 13

Abstract:

A mixed air conditioning controller is formed as a factory assembled and adjusted unit in a compact housing, with simple and direct input/output field connectors. Various temperature and humidity input devices are field connected to produce a sequenced control of the air dampers and mechanical cooling and heating devices, as well as auxiliary devices. The controller includes a primary input related to room demand, an outside air temperature input, with an interlocked control to the damper, a fan status input, a minimum air supply control and a by-pass switch having a low limit input. The logic network connecting the input/output includes pneumatic switching, pressure selecting and comparing devices of a diaphragm-controlled-orifice construction connected to function as fluidic repeaters, pressure regulating valves and pressure isolating and switching devices. The controller includes a conditioning channel and a damper channel. An outside air interlock controls the damper channel and a presettable switch controls the minimum air supply control.

US Patent:

42639310, Apr 28, 1981

Filed:

Nov 9, 1979

Appl. No.:

6/092724

Inventors:

Scott B. Bramow - Oak Creek WI
Richard N. Laakaniemi - Hales Corners WI
Paul E. Wichman - Brookfield WI

Assignee:

Johnson Controls, Inc. - Milwaukee WI

International Classification:

G05D 1606

US Classification:

137 84

Abstract:

A mixed air conditioning controller is formed as a factory assembled and adjusted unit in a compact housing, with simple and direct input/output field connectors. Various temperature and humidity input devices are field connected to produce a sequenced control of the air dampers and mechanical cooling and heating devices, as well as auxiliary devices. The controller includes a primary input related to room demand, an outside air temperature input, with an interlocked control to the damper, a fan status input, a minimum air supply control and a by-pass switch having a low limit input. The logic network connecting the input/output includes pneumatic switching, pressure selecting and comparing devices of a diaphragm-controlled-orifice construction connected to function as fluidic repeaters, pressure regulating valves and pressure isolating and switching devices. The controller includes a conditioning channel and a damper channel. An outside air interlock controls the damper channel and a presettable switch controls the minimum air supply control.