Pneumatic line clean out device
First Claim
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1. In combination with a device for the pneumatic injection of seeds into the ground including an enclosed seed pathway comprising a chute for conveying seeds to a nozzle;
- and a pneumatic pressure source adapted to provide pressure to move said seeds through said pathway means for cleaning a blockage in said nozzle caused by blocking material becoming lodged in said pathway comprising closure means adapted to close a discharge opening formed in said enclosed pathway, said closure means being openable to allow ejection of the blocking material, sensing means communicating with said pathway to sense a blocking situation and operably connected with said closure means to open said closure means upon the sensing of a blockage, said opening being located to allow pneumatic pressure from said source to blow the blocking material out of said opening.
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Abstract
A device for cleaning blockages of a pneumatic tube for carrying seeds or similar particulate matter comprising a sensing device adapted to sense the blockage, a gate in the tube adapted to be opened in response to the sensor and a pneumatic device to blow the seed or other matter out of the tube. A time delay relay may be used to prevent unwarranted recycling of the gate opening and pneumatic devices.
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Citations
8 Claims
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1. In combination with a device for the pneumatic injection of seeds into the ground including an enclosed seed pathway comprising a chute for conveying seeds to a nozzle;
- and a pneumatic pressure source adapted to provide pressure to move said seeds through said pathway means for cleaning a blockage in said nozzle caused by blocking material becoming lodged in said pathway comprising closure means adapted to close a discharge opening formed in said enclosed pathway, said closure means being openable to allow ejection of the blocking material, sensing means communicating with said pathway to sense a blocking situation and operably connected with said closure means to open said closure means upon the sensing of a blockage, said opening being located to allow pneumatic pressure from said source to blow the blocking material out of said opening.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
Specification