Remote control device vacuum or ventilation system
First Claim
1. Device for remote control of a vacuum comprising a housing, a motorized vacuum turbine connected pneumatically to an outlet of the housing for creating a vacuum in the housing, and at least one tube with a downstream end which terminates in the housing, means connected to an upstream end of the tube for generating a single pneumatic pressure pulse in the direction of said downstream end, said downstream end being associated with means for detecting the pneumatic pressure pulse and acting on an electric motor of the vacuum turbine to start the motor, the pneumatic pressure pulse being conducted by the tube from said upstream end to said downstream end, said downstream end being provided with a shutoff flap normally held in the closed position and capable of opening under the influence of vacuum created in housing.
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Accused Products
Abstract
This device has a housing 2, a motorized vacuum turbine 4 pneumatically connected to outlet 2b of a housing, and at least one tube 6 whose downstream end 6a terminates in housing 2, and structure 13, 40 connected to upstream end 6b of tube 6 capable of generating a temporary pneumatic pressure wave in the direction of its downstream end 6a. The latter is associated with structure 20, 22 for detecting the pressure wave and acting on module 23 for controlling the power to electric motor 3 of vacuum turbine 4 to start the system operating. The pneumatic pressure wave is conveyed by tube 6 itself from its upstream end 6b to its downstream end 6a, this downstream end being provided with a shutoff flap 18, normally held in the closed position and capable of causing the tube to be opened under the influence of the vacuum flow.
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Citations
24 Claims
- 1. Device for remote control of a vacuum comprising a housing, a motorized vacuum turbine connected pneumatically to an outlet of the housing for creating a vacuum in the housing, and at least one tube with a downstream end which terminates in the housing, means connected to an upstream end of the tube for generating a single pneumatic pressure pulse in the direction of said downstream end, said downstream end being associated with means for detecting the pneumatic pressure pulse and acting on an electric motor of the vacuum turbine to start the motor, the pneumatic pressure pulse being conducted by the tube from said upstream end to said downstream end, said downstream end being provided with a shutoff flap normally held in the closed position and capable of opening under the influence of vacuum created in housing.
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23. Device for remote control of a vacuum or system, comprising:
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a vacuum source; at least one tube having a main working lumen having first and second ends, said first end being in fluid communication with said vacuum source; means associated with said second end for generating a single pneumatic pressure pulse in said main working lumen; and means for detecting said pressure pulse and activating said vacuum source in response to detection of said pressure pulse. - View Dependent Claims (24)
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Specification