Noise maker for air filter

• US 5,352,255 A
• Filed: 04/05/1993
• Issued: 10/04/1994
• Est. Priority Date: 04/05/1993
• Status: Expired due to Fees

• Current Assignee: Andrew A. Taft
• Original Assignee: Andrew A. Taft
• Inventors: Taft, Andrew A.
• Primary Examiner(s): SPITZER, ROBERT H
• Application Number:
  US08/048,451
• Time in Patent Office: 547 Days
• Field of Search: 55/274, 55/DIG. 34, 116/67 R, 116/70, 116/DIG. 25
• US Class Current: 96/419
• CPC Class Codes: B01D 35/143 Filter condition indicators
• CPC Class Codes: B01D 46/0086 Filter condition indicators
• CPC Class Codes: B01D 46/10 Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
• CPC Class Codes: B01D 46/42 Auxiliary equipment or operation thereof
• CPC Class Codes: G10K 5/00 Whistles
• CPC Class Codes: Y10S 116/25 Air filter condition indicator
• CPC Class Codes: Y10S 55/34 Indicator and controllers

Abstract

A noise maker having a housing with a hole formed on at least one surface of the housing and a weighted member in resilient relationship over the hole. The weighted member is movable between a first position closing the hole to a second position for allowing a desired volume of air to flow through the hole so as to produce an audible sound. The weighted member is slidably mounted on a dowel rod within the housing. A slider plate is provided with a plurality of hole sizes formed thereon. The slider plate is interposed between the hole and the weighted member. The hole is formed on a first planar surface of the housing. The housing has an opening formed on a second planar surface of the housing. The first and second planar surfaces are in parallel relationship. A chamber extends between these surfaces. The surfaces in the chamber are permanently coupled together. The chamber has a rectangular configuration.

Claims

1. A noise maker comprising:

a housing having a hole formed on at least one surface of said housing; and

a member in resilient relationship over said hole, said member movable from a first position closing said hole to a second position for allowing a desired volume of air to flow through said hole so as to produce an audible sound, said housing having said hole formed in a first surface of said housing, said housing having an opening formed on a second surface of said housing, said member interposed between said first surface and said second surface, said housing having a rectangular chamber extending between said first surface and said second surface, said member positioned within said chamber.

2. The noise maker of claim 1, said member comprising a weighted discoidal member having a diameter greater than said hole, said discoidal member restrictive of air flow through said hole in said first position.

3. The noise maker of claim 1, said member being responsive to a pressure change across said hole, said member movable to said second position in response to a pressure change beyond a desired level.

4. The noise maker of claim 1, further comprising:

a means for varying a diameter of said hole, said means affixed in slidable relationship to said housing.

5. The noise maker of claim 4, said means comprising:

a slider plate having a plurality of hole sizes formed therein, said slider plate being interposed between said hole and said member.

6. The noise maker of claim 1, further comprising:

an air filter extending around an exterior of said housing, said housing permanently affixed to said air filter.

7. The noise maker of claim 1, said housing having said hole formed in a first planar surface of said housing, said housing having an opening formed in a second planar surface of said housing, said first planar surface and said second planar surface in parallel relationship, said housing having a chamber extending between said first planar surface and said second planar surface, said first and second planar surfaces and said chamber being permanently coupled together.

8. A noise maker comprising:

a housing having a hole formed on at least one surface of said housing; and

a member in resilient relationship over said hole, said member movable from a first position closing said hole to a second position for allowing a desired volume of air to flow through said hole so as to produce an audible sound, said member slidably mounted on a dowel rod within said housing, said member at a lowermost position on said dowel rod in said first position, said second position being on a higher level of said dowel rod.

9. The noise maker of claim 8, said dowel rod having a lowermost end positioned centrally of said hole, said dowel rod extending upwardly and outwardly from said hole.

10. A noise maker for an air filter comprising:

a housing having a hole formed on at least one surface of said housing, said housing having an opening formed on another surface of said housing; and

a plate having a plurality of hole sizes formed thereon, said plate positioned in said housing adjacent to said hole, said plate affixed in slidable relationship within said housing, at least a portion of said hole sizes having a smaller diameter than said hole.

11. The noise maker of claim 10, further comprising:

a member in resilient relationship relative to said hole, said member movable from a first position covering said hole to a second position for allowing a sufficient volume of air flow through said hole so as to produce an audible sound.

12. The noise maker of claim 11, said member slidably mounted on a dowel rod within said housing, said member at e lowermost position on said dowel rod in said first position, said second position being on a higher level of said dowel rod.

13. The noise maker of claim 11, said member interposed between said surfaces of said housing, said housing having e rectangular chamber extending between said surfaces, said member positioned within said chamber.

14. The noise maker of claims 10, said housing having said hole formed in a first planar surface of said housing, said housing having said opening formed on a second planar surface of said housing, said first planar surface and said second planar surface in generally parallel relationship, said housing having a chamber extending between said first planar surface and said second planar surface, said first and second planar surfaces and said chamber being permanently coupled together.

15. A noise maker for an air filter comprising:

a first planar surface having a hole formed thereon;

a second planar surface having an opening formed thereon, said second planar surface in generally parallel relationship to said first planar surface; and

a chamber permanently affixed to and extending between said first planar surface and said second planar surface, said hole and said opening positioned so as to be within an area of said chamber, said first and second planar surfaces having a rectangular configuration, each of said first and second planar surfaces having an area greater than an area of said front section of said chamber, said chamber having a rectangular cross-section, said opening having a greater area than said hole.

16. The noise maker of claim 15, further comprising:

a weighted member in resilient relationship over said hole, said weighted member movable between a first position closing said hole to a second position for allowing a desired volume of air to flow through said hole so as to produce an audible sound.