Duct sealing apparatus and ducting system
OwnerLothar Binzerinventor
Life of this patent
Estimating the term…
Abstract
Apparatus for sealing a duct comprises an enclosed body having inlet and outlet passages communicating with the duct. A duct sealing member is located within the enclosed body and is movable between an open position to permit flow through the enclosed body and a closed position to block one of the passages of the enclosed body to prevent flow through the body. An actuating system moves the duct sealing member from the open position to the closed position. A sensing system for detecting a pre-determined condition such as excessive heat is provided to activate the actuating system and seal the duct. A ducting system incorporates the sealing apparatus and permits ventilation of heating appliances in apartment dwellings and the like in a significantly reduced area leading to material cost savings.
Claims18
Apparatus for sealing a duct comprising:
- an enclosed body having inlet and outlet passages for communicating the interior of the enclosed body with the duct;
- an outer enclosure about the enclosed body to define an air space about the body, the outer enclosure having an inlet passage and an outlet passage to permit communication of the inlet and outlet passages of the enclosed body with the duct;
- duct sealing means located within the enclosed body and movable between an open position to permit flow through the enclosed body and a closed position to block one of the passages of the enclosed body to prevent flow through the body;
- actuating means for moving the duct sealing means from the open position to the closed position;
- and
- heat sensing means for detecting elevated temperatures indicative of a fire and activating the actuating means.
A ducting system with ducting pipe for ventilating an enclosed space and apparatus for sealing the ducting pipe, said ducting system comprising;
- an enclosed body having inlet and outlet passages for communicating the interior of the enclosed body with the ducting pipe;
- an outer enclosure about the enclosed body to define an air space about the body, the outer enclosure having an inlet passage and an outlet passage to permit communication of the inlet and outlet passages of the enclosed body with the ducting pipe;
- duct sealing means located within the enclosed body and movable between an open position to permit flow through the enclosed body and a closed position to block one of the passages of the enclosed body to prevent flow through the body and through the ducting pipe;
- actuating means for moving the duct sealing means from the open position tot he closed position;
- and
- heat sensing means for detecting elevated temperatures indicative of a fire and activating the actuating means.
Dependencies are inferred from the claim text.