Control system for the ventilating means in a poultry building o

Details Control system for the ventilating means in a poultry building o Control system for the ventilating means in a poultry building o

1992-02-13

1993-04-27

Joyce, Harold

Ventilation

Having inlet airway

Including automatic control means

119 25, 454239, F24F 1102

Patent

active

052057852

ABSTRACT:
Normally closed ventilating elements of a poultry building or the like are opened in response to failure of the supply of electric power to the building ventilating system by a control system which includes a source of direct current electricity arranged so as normally to energize an electromagnet and thereby to secure its armature to the electromagnet. The armature is secured to the handle of a winch which is arranged to operate the building shades. Power to the electromagnetic device is controlled through a MOSFET acting as a switch and which is controlled by a parallel combination of a capacitor and a resistor which are connected in parallel with the MOSFET gate. When power is lost, the capacitor discharges through the resistor and deenergizes the electromagnet so as to free its armature to rotate with the winch handle to open the building curtains.

REFERENCES:
patent: 3973173 (1976-08-01), Smith
patent: 4428278 (1984-01-01), Sutton, Jr.
patent: 4484084 (1984-11-01), Gheffer
patent: 4605162 (1986-08-01), Crider
patent: 4894744 (1990-01-01), Talbot

Affiliated with

Also associated with

Rating

Control system for the ventilating means in a poultry building o does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control system for the ventilating means in a poultry building o, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control system for the ventilating means in a poultry building o will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2323550