Vacuum ejector pumps
First Claim
1. A vacuum ejector pump operated by compressed air which flows in and out at high velocity, thus creating negative pressure in an outer surrounding space S, the vacuum ejector pump comprising:
- a cylindrical nozzle body (2) having at a predetermined position thereof an opening (3), and at least one mounting nozzle (4, 5) which is coaxially installed in the nozzle body and is visible through an opening (3);
a cover (10) to cover the opening (3) of the nozzle body (2);
a flexible valve member (9) provided on a wall of either the nozzle body (2) or the cover (10), and opening or closing a hole (8) which allows the pump to communicate with the surrounding space (S); and
fastening means (13, 14) to fasten the nozzle body (2) to the cover (10).
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Accused Products
Abstract
Disclosed herein is a vacuum ejector pump operated by compressed air which flows in and out at high velocity, thus creating negative pressure in an outer surrounding space (S). The vacuum ejector pump includes a cylindrical nozzle body (2) and a cover (10). The nozzle body has at a predetermined position thereof an opening (3). One or more mounting nozzles (4, 5) are coaxially installed in the nozzle body and are visible through the opening (3). Holes (8) are formed in the wall of the nozzle body to allow the pump to communicate with the surrounding space (S). The cover functions to cover the opening of the nozzle body. Further, the pump includes flexible valve members (9) to open or close the holes, and fastening means (13, 14) to fasten the nozzle body to the cover.
20 Citations
8 Claims
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1. A vacuum ejector pump operated by compressed air which flows in and out at high velocity, thus creating negative pressure in an outer surrounding space S, the vacuum ejector pump comprising:
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a cylindrical nozzle body (2) having at a predetermined position thereof an opening (3), and at least one mounting nozzle (4, 5) which is coaxially installed in the nozzle body and is visible through an opening (3);
a cover (10) to cover the opening (3) of the nozzle body (2);
a flexible valve member (9) provided on a wall of either the nozzle body (2) or the cover (10), and opening or closing a hole (8) which allows the pump to communicate with the surrounding space (S); and
fastening means (13, 14) to fasten the nozzle body (2) to the cover (10). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification