# US 2014/0190965 A1 · Pressure vessel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190965 A1 - Document ID: US20140190965A1 - Status: Published application - Kind: A1 - Application number: 13/261,790 - Filed: 2012-08-01 - Published: 2014-07-10 - Earliest claimed: 2011-08-19 - Assignees: Hydac Technology GmbH - Inventors: Peter Kloft; Herbert Baltes - Web page: https://patentgrep.com/patent/US20140190965A1 ## CPC - F15B 1/16: in the form of a tube - F15B 1/165: {in the form of a bladder} - F15B 2201/20: Accumulator cushioning means - F15B 2201/3152: the flexible separating means being bladders - F15B 2201/405: Housings - F15B 2201/4053: characterised by the material - F15B 2201/605: Assembling or methods for making housings therefor - F17C 2201/0109: with exteriorly curved end-piece - F17C 2201/018: with bladders - F17C 2201/056: Small (<1 m3) - F17C 2203/0604: Liners - F17C 2203/0619: with two layers - F17C 2203/066: Plastics - F17C 2203/0663: in form of fibers or filaments - F17C 2203/0675: with details of composition - F17C 2205/0305: Bosses, e.g. boss collars - F17C 2205/0397: on both sides of the pressure vessel - F17C 2209/2127: by blowing - F17C 2209/221: Welding - F17C 2209/234: of closing end pieces, e.g. caps - F17C 2270/0554: Hydraulic applications - F15B: SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR - F17C: VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES (storing fluids in natural or artificial cavities or chambers in the earth B65G5/00; construction or assembling of bulk storage containers employing civil-engineering techniques E04H7/00; variable-capacity gas-holders F17B; liquefaction or refrigeration machines, plants, or systems F25) ## Abstract A pressure vessel which is provided preferably for use in bladder accumulators (27), having a multi-part vessel body (1) composed of a tubular central part (3) which, at at least one of its two ends, has a termination region (5, 7), is characterized in that a cover part (9) which at least partially forms the respective termination region (5, 7) engages at the edge over the central part (3), at least in the region of the respectively assignable end (13, 15) thereof, so as to form a fixed connection. ## Claims ### Claim 1 A pressure vessel preferably provided for use with bladder accumulators (27), having a multipart vessel body (1) consisting of a tubular central part (3), which has a termination region (5, 7) on at least one of its two ends, characterized in that a cover part (9), which forms at least partially the respective termination region (5, 7), extends beyond the central part (3) at least in the region of its respective end (13, 15) while entering into a fixed connection. ### Claim 2 (depends on 1) The pressure vessel according to claim 1, characterized in that a cap (11) which is connected to the respective pipe end (13, 15) of the central part (3) is provided as an additional component of the respective termination region (5, 7) and the cover part (9) is designed in the manner of a cover laminate, which extends at least partially beyond the respective cap (11). ### Claim 3 (depends on 1) The pressure vessel according to claim 1, characterized in that the tubular central part (3), like the respective cap (11), is made of a fiber composite material and/or a laminate of fibers. ### Claim 4 (depends on 1) The pressure vessel according to claim 1, characterized in that the respective cap (11) is designed in the form of a hemisphere having at least one opening (23, 25) which is left uncovered by the cover laminate (5), for introducing a corresponding pressure medium. ### Claim 5 (depends on 1) The pressure vessel according to claim 1, characterized in that the caps (11) are adhesively bonded to the respective pipe end (13, 15), preferably by means of multicomponent adhesive. ### Claim 6 (depends on 1) The pressure vessel according to claim 1, characterized in that the respective cover laminate (9) extends beyond the connecting location (17, 19) between the cap (11) and the pipe end (13, 15), at least over a region of the adjacent tubular central part or completely covers the central part (3), in that the two adjacent ends of two opposing cover laminates (9) are joined together in a pressure-tight manner. ### Claim 7 (depends on 1) The pressure vessel according to claim 1, characterized in that its inner chamber (37) is provided with a lining, preferably in the form of a plastic liner, applied by a centrifugal sintering or rotational sintering method. ### Claim 8 (depends on 1) The pressure vessel according to claim 1, characterized in that, to form a bladder accumulator (27), both caps (11) have an opening (23, 25), one (23) of which is connected to the inner chamber (31) of an accumulator bladder (33). ### Claim 9 (depends on 1) The pressure vessel according to claim 1, characterized in that a sea water screen (39) is provided on an opening (25) of a cap (11) provided for admission of sea water. ### Claim 10 (depends on 1) A bladder accumulator (27) which has a pressure body (1) according to claim 1 and is provided for media separation, in particular for the separation of water/glycol mixtures from sea water in maritime facilities.