Abstract A timed atomizer interrupter in series with a humidistat control interrupter for humidity control of rooms and other spaces controls the periods during which water is sprayed to control humidity. The present invention deals primarily with the timed interrupter. Air from a conventional humidistat passes through an electropneumatic valve to a pressure control device of conventional design. The flow of air is through a restriction which determines the time during which air pressure builds up in the pressure switch. When the switch closes, the electropneumatic valve disconnects air from the humidistat and permits it to escape slowly through an adjustable bleed orifice until the pressure has dropped to the point where the pressure control switch opens. The rate of bleed from the pressure control switch determines the time before pressure drops to the point where the control switch opens. Preferably a check valve is interposed in the connections from the electropneumatic valve to the pressure control device and is provided with a bypass conduit to the bleed orifice. This further lengthens the off period and shortens the on period of the pressure control device. It also smooths the operation.
Inventors
👤 J Burgess
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-22 17:00
CPC Classifications
G; G05; G05D; G05D22/00; G05D22/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
176 words
In a humidity control system provided with humidistat and atomizers and humidistat controlled and timer controlled atomizer valves in series, the improvement in the timer controlling the time controlled valve which comprises, a. a pneumatic pressure control and switch actuated means thereto when a predetermined air pressure differential builds up in the control, the timer controlled atomizer valve in series being controlled by the position of the switch actuated means, b. an electropneumatic valve and means for connecting air from the humidistat through a restricted orifice to the pressure control, whereby a slow flow of air passes into the control in one position of the valve, c. means actuated by the closure of the pressure control switch to operate the electropneumatic valve into a second position, and d. a restricted bleed orifice and means connecting the pressure control through the valve thereto, whereby on closing of the control switch air slowly bleeds out until the differential air pressure in the control reaches a value causing the control switch to open, thereby initiating another cycle of operation.
Claim 2
Dependent Claim
176 words
In a humidity control system provided with humidistat and atomizers and humidistat controlled and timer controlled atomizer valves in series, the improvement in the timer controlling the time controlled valve which comprises, a. a pneumatic pressure control and switch actuated means thereto when a predetermined air pressure differential builds up in the control, the timer controlled atomizer valve in series being controlled by the position of the switch actuated means, b. an electropneumatic valve and means for connecting air from the humidistat through a restricted orifice to the pressure control, whereby a slow flow of air passes into the control in one position of the valve, c. means actuated by the closure of the pressure control switch to operate the electropneumatic valve into a second position, and d. a restricted bleed orifice and means connecting the pressure control through the valve thereto, whereby on closing of the control switch air slowly bleeds out until the differential air pressure in the control reaches a value causing the control switch to open, thereby initiating another cycle of operation.
Claim 3
Dependent Claim
63 words
A system according to claim 1 in which the connection from the electropneumatic valve to the pressure control includes a check valve which permits air to pass toward the control but prevents it passing in the opposite direction, connecting means from the restricted orifice to the check valve through a bypass conduit, whereby longer and smoother operation cycles of the pressure controller results.