Nozzle noise silencer

• US 3,982,605 A
• Filed: 05/05/1975
• Issued: 09/28/1976
• Est. Priority Date: 05/05/1975
• Status: Expired due to Term

• Current Assignee: Pangborn Corporation
• Original Assignee: Carborundum Co (Compagnie De Saint-Gobain S.A.)
• Inventors: Sneckenberger, John E.
• Primary Examiner(s): Gonzales, John
• Application Number:
  US05/574,475
• Time in Patent Office: 512 Days
• Field of Search: 181/35 R, 181/36 R, 181/36 A, 181/36 B, 181/41, 181/47 R, 181/47 B, 181/72, 15/326, 51/11, 239/591, 239/DIG. 21, 239/589
• US Class Current: 181/247
• CPC Class Codes: B05B 1/005 Nozzles or other outlets specially adapted for discharging one or more gases
• CPC Class Codes: B05B 7/1486 for spraying particulate material in dry state
• CPC Class Codes: Y10S 239/21 Air blast

Abstract

A silencer device for attachment to a nozzle, or a combined nozzle and silencer, are provided for reducing the noise generated by compressed air or a compressed air-particulate mixture exiting from conventional nozzles of the type used for air blasting, sandblasting, or peening operations. The silencer has a bore of substantially constant diameter which is, within limits, larger than the nozzle bore for which the silencer is designed.

Claims

1. A nozzle noise silencer device for reducing noise created by a flow of fluid from a nozzle which includes a nozzle bore having a length l and a nozzle exit diameter d;

said silencer device comprising a body member having a silencer bore extending therethrough and having a silencer bore length L and a silencer bore diameter D, the improvement comprising said silencer bore diameter D being substantially constant throughout its entire length and being larger than said nozle exit diameter d within a

2. A silencer device as defined in claim 1 wherein the silencer bore length

3. A combined nozzle and silencer device for reducing sound created by fluid flow therethrough, said device comprising a nozzle portion and a silencer portion, said nozzle portion including a nozzle bore having a nozzle bore length l and an exit bore diameter d, said silencer portion including a silencer bore having a silencer bore length L and a silencer bore diameter D;

the improvement comprising said silencer bore diameter D being substantially constant throughout its entire length and being larger than said nozzle exit diameter d within a range between 110 percent and

4. A combined nozzle and silencer device as defined in claim 3 wherein said nozzle portion and said silencer portion are of an integral one-piece

5. A combined nozzle and silencer device as defined in claim 3 wherein said nozzle portion and said silencer portion are of separate construction, and means are provided for connecting said nozzle portion of said silencer portion.