Quick-release aerator for introducing high pressure air into a container to facilitate dispensing

• US 3,915,339 A
• Filed: 07/08/1974
• Issued: 10/28/1975
• Est. Priority Date: 07/08/1974
• Status: Expired due to Term

• Current Assignee: Carl G. Matson
• Original Assignee: Carl G. Matson
• Inventors: Matson, Carl G.
• Primary Examiner(s): Knowles, Allen N.
• Assistant Examiner(s): Lane, Hadd
• Application Number:
  US05/486,497
• Time in Patent Office: 477 Days
• Field of Search: 222/3 137/495,494,102 251/30 124/11R
• US Class Current: 222/3
• CPC Class Codes: B65D 88/703 Air blowing devices, i.e. devices for the sudden introduction of compressed air into the container

Abstract

A container chargeable with air under pressure. A piston disposed therein is movable to a position closing air outlet means to condition the container for charging, and is movable away from such position after the container has been charged for suddenly releasing air under pressure through the air outlet means.

Claims

1. A quick-release aerator comprising a container having inlet means and outlet means;

an annular valve seat arranged at said outlet means;

a hollow cylinder mounted within said container and having a closed end wall with an aperture, and an open end facing and axially spaced from said valve seat;

air transmitting conduit means extending between said inlet means and said aperture;

said air transmitting conduit means comprising a bushing secured in said inlet means, a flange member secured to said closed end wall of said cylinder, an intermediate pipe extending between said bushing and said flange member, first connecting means connecting one end of said pipe to said bushing, and second connecting means connecting the other end of said pipe to said flange member; and

a piston in said cylinder and having an outer end of greater diameter than said valve seat, said piston being axially slidable between a first position where said outer end is spaced from said valve seat and a second position where said outer end is engaged with said valve seat, said piston being movable from its first position to its second position by air under pressure introduced through said air transmitting conduit means to condition said container for charging with air under pressure, at least one of said connecting means being a resilient tube which serves as a check valve for releasing air under pressure therepast into said container for charging the same when air under pressure is introduced through said air transmitting conduit means and said piston is disposed in its second position, and said piston after said container has been charged with air under pressure being returnable to its first position by a combination of exhaust of air under pressure from the air transmitting conduit means and the resultant pressure differential established at the opposed ends of said piston for suddenly releasing air under pressure from said container through said outlet means.

2. The quick-release aerator of claim 1 wherein said outlet means comprises a pipe fitting secured in an opening in said container, and a pipe section threaded in said pipe fitting;

and wherein said valve seat is presented by a ring member secured in the end of said pipe section.

3. The quick-release aerator of claim 1 wherein the area of said outer end of said piston beyond the circumference of said valve seat approximates the area of said valve seat.

4. A quick-release aerator comprising a container having inlet means and outlet means;

an annular valve seat arranged at said outlet means;

a hollow cylinder mounted within said container and having a closed end wall with an aperture, and an open end facing and axially spaced from said valve seat;

air transmitting conduit means extending between said inlet means and said aperture; and

a piston in said cylinder and having an outer end of greater diameter than said valve seat, said piston being axially slidable between a first position where said outer end is spaced from said valve seat and a second position where said outer end is engaged with said valve seat, said piston being movable from its first position to its second position by air under pressure introduced through said air transmitting conduit means to condition said container for charging with air under pressure, said piston being mounted in said cylinder with slight circumferential clearance for releasing air under pressure therepast from said cylinder into said container for charging the same when air under pressure is introDuced through said air transmitting conduit means and said piston is disposed in its second position, and said piston after said container has been charged with air under pressure being returnable to its first position by a combination of exhaust of air under pressure from the air transmitting conduit means and the resultant pressure differential established at the opposed ends of said piston for suddenly releasing air under pressure from said container through said outlet means.

5. The quick-release aerator of claim 4 wherein said outlet means comprises a pipe fitting secured in an opening in said container, and a pipe section threaded in said pipe fitting;

and wherein said valve seat is presented by a ring member secured in the end of said pipe section.

6. The quick-release aerator of claim 4 wherein the area of said outer end of said piston beyond the circumference of said valve seat approximates the area of said valve seat.

7. A quick-release aerator comprising a container having inlet means and outlet means;

an annular valve seat arranged at said outlet means;

a hollow cylinder mounted within said container and having a closed end wall with an aperture, and an open end facing and axially spaced from said valve seat;

air transmitting conduit means extending between said inlet means and said aperture; and

a piston in said cylinder and having an outer end of greater diameter than said valve seat, said piston being a solid cylindrical resilient piston which may be reversibly mounted in said cylinder, said piston being axially slidable between a first position where said outer end is spaced from said valve seat and a second position where said outer end is engaged with said valve seat, said piston being movable from its first position to its second position by air under pressure introduced through said air transmitting conduit means to condition said container for charging with air under pressure, and said piston after said container has been charged with air under pressure being returnable to its first position by a combination of exhaust of air under pressure from the air transmitting conduit means and the resultant pressure differential established at the opposed ends of said piston for suddenly releasing air under pressure from said container through said outlet means.

8. The quick-release aerator of claim 7 wherein said outlet means comprises a pipe fitting secured in an opening in said container, and a pipe section threaded in said pipe fitting;

and wherein said valve seat is presented by a ring member secured in the end of said pipe section.

9. The quick-release aerator of claim 7 wherein the area of said outer end of said piston beyond the circumference of said valve seat approximates the area of said valve seat.