FLUID METER

• US 3,720,106 A
• Filed: 02/16/1971
• Issued: 03/13/1973
• Est. Priority Date: 08/25/1967
• Status: Expired due to Term

• Current Assignee: Andrew Varga
• Original Assignee: Andrew Varga
• Inventors: Varga, Andrew
• Primary Examiner(s): Gill, James J.
• Application Number:
  US05/115,226
• Time in Patent Office: 756 Days
• Field of Search: 73/258,431,273
• US Class Current: 73/273
• CPC Class Codes: G01F 15/063 using electrical means
• CPC Class Codes: G01F 3/12 Meters with nutating members, e.g. discs

Abstract

A fluid meter comprising a casing, a measuring chamber unit defining a measuring chamber mounted in said casing, fluid inlet and outlet ports communicating with said measuring chamber, a piston assembly mounted for movement in said chamber upon flow of fluid therethrough, indicator means operatively connected to said piston assembly to indicate at least rate of flow through said measuring chamber, means defining an opening in said casing for assembly of said measuring chamber unit therein, a bottom cover member including a seal detachably secured over said opening, said casing including a circumferentially extending rib spaced inwardly from the outer edge defining said opening, said edge projecting beyond said rib to provide in the assembled relation contact between said cover and edge and engagement of said rib with said seal, and said casing constructed without internal protuberances thereby allowing unobstructed fluid flow about the measuring chamber and wherein the centerline of the inlet and outlet ports are aligned with a plane through the center of the measuring chamber to minimize pressure drop across the fluid meter.

Claims

1. A fluid meter comprising a casing, a measuring chamber unit defining a measuring chamber mounted in said casing, fluid inlet and outlet ports communicating with said measuring chamber, an actuator assembly mounted for movement in said measuring chamber upon flow of fluid therethrough, indicator means operatively connected to said actuator assembly to indicate at least rate of flow through said measuring chamber, means defining an opening in said casing for assembly of said measuring unit therethrough, said casing including a circumferentially extending rib spaced radially inwardly from the portion of the casing defining said opening and defining an annular groove therebetween, a bottom cover member including a liner seal adapted to be secured over said opening, said casing portion and rib lying in planes spaced apart less than the thickness of said liner seal whereby said bottom cover abuts said portion of the casing and said rib engages the resilient liner seal to form a pressure tight seal therewith when the parts are assembled, the outer peripheral edge portion of said liner seal engaging in said annular groove.

2. A fluid meter as claimed in claim 1 wherein the indicator means is magnetically driven by a meter magnet which is retained by a magnetic shield.

3. A fluid meter as claimed in claim 1 wherein the centerline of the inlet and outlet ports lies in the center plane of the measuring chamber.