ACCUMULATORS

• US 3,825,034 A
• Filed: 10/13/1971
• Issued: 07/23/1974
• Est. Priority Date: 10/16/1970
• Status: Expired due to Term

• Current Assignee: Leslie Cyril Chouings
• Original Assignee: Leslie Cyril Chouings
• Inventors: Chouings, Leslie Cyril
• Primary Examiner(s): Bell, Jr., Houston S.
• Assistant Examiner(s): Schmidt, Frederick R.
• Application Number:
  US05/188,852
• Time in Patent Office: 1,014 Days
• Field of Search: 138/30 222/386.5,389 292/256,256.6 220/55AN 285/305
• US Class Current: 138/30
• CPC Class Codes: F15B 1/106 characterised by the way housing components are assembled
• CPC Class Codes: F15B 1/12 attached at their periphery flexible separating means in the form of a tube F15B1/16
• CPC Class Codes: F15B 2201/205 using gas
• CPC Class Codes: F15B 2201/3151 the flexible separating means being diaphragms or membranes
• CPC Class Codes: F15B 2201/3156 characterised by their attachment
• CPC Class Codes: F15B 2201/415 Gas ports
• CPC Class Codes: F15B 2201/435 being fixed to the separating means
• CPC Class Codes: F16L 55/052 Pneumatic reservoirs

Abstract

An accumulator for a liquid pressure system has a hollow casing comprising two hollow casing parts having mating cylindrical surfaces. There is an annular groove in each cylindrical surface, the two grooves being aligned to define an annular cavity in which is/are housed one or more inserts. The insert(s) act to hold the two hollow casing parts together. The hollow casing is assembled by inserting one of the mating cylindrical surfaces within the other to define the annular cavity, and inserting the one or more inserts through a hole in the wall portion of the outer mating casing part into the annular cavity. An annular cover maybe placed over the wall portion of the outer mating casing part when the two casing parts are assembled together, so as to cover the radially outer end of the hole.

Claims

1. A liquid pressure accumulator formed of two parts comprising a first and second hollow casing with a port in each casing, said casings being substantially convex in shape to form a substantially spheroidial configuration with mating surfaces when secured together, one casing having an annular groove formed on its inner mating surface, a second casing having a corresponding mating annular groove on its outer mating surface, in alignment with said one casing groove when they are secured together, a second annular groove in said second casing disposed in its outer surface below its first mentioned annular groove, adjacent its mating surface, a flexible diaphragm having an inwardly extending rim portion disposed between mating surfaces in said second groove to provide a seal between the chambers formed by said two casings, said diaphragm normally being disposed adjacent the inner surface of said one casing, circumferential hole means disposed in said one casing and communicating with said mating grooves, and elongated rectangular insert means adapted to be inserted through said hole means into said mating grooves to secure said casings together.

2. The accumulator of claim 1, wherein there are a plurality of said insert means disposed in end to end abutment.

3. An accumulator of claim 1, wherein the insert means is a single circumferentially extending continuous insert.