Room grating
First Claim
Patent Images
1. Room air grating comprising:
- first stationary grid, a second grid movable between OPEN and CLOSED positions, a motor operable to move said second grid between said positions, a resilient yieldable connection between said motor and said grid, whereby resistance to screen grid movement causes yielding of said connection.
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Abstract
An air grating where the air flow is controlled by a grid movable between OPEN and CLOSED positions. Control means acts when the movable grid arrives at either a warm or a cool limiting position. The arrival at a limiting position prepares said moving means for movement to the other limiting position when a later thermostat signal is received.
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Citations
4 Claims
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1. Room air grating comprising:
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first stationary grid, a second grid movable between OPEN and CLOSED positions, a motor operable to move said second grid between said positions, a resilient yieldable connection between said motor and said grid, whereby resistance to screen grid movement causes yielding of said connection.
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2. Room air grating comprising:
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a first stationary grid, a second grid movable between OPEN and CLOSED positions, a motor connected to drive said second grid between said positions through a yieldable connection, wherein coincidence of motor motion to drive said second grid between said position and resistance by said grid to movement causes yielding of said connection.
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3. Room air grating comprising:
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a first stationary grid, a second grid movable between OPEN and CLOSED positions, a motor connected to drive said second grid through a yieldable connection. - View Dependent Claims (4)
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Specification