(19)
(11) EP 3 966 485 A1

(12)

(43) Date of publication:
16.03.2022 Bulletin 2022/11

(21) Application number: 20802519.7

(22) Date of filing: 06.05.2020
(51) International Patent Classification (IPC): 
F16L 55/04(2006.01)
E21B 21/01(2006.01)
(52) Cooperative Patent Classification (CPC):
E21B 21/01; F16L 55/053; F16L 55/05
(86) International application number:
PCT/US2020/031698
(87) International publication number:
WO 2020/227423 (12.11.2020 Gazette 2020/46)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 06.05.2019 US 201916404248
25.06.2019 US 201962866501 P
30.12.2019 US 201916730621

(71) Applicant: Performance Pulsation Control, Inc.
Richardson, Texas 75082 (US)

(72) Inventor:
  • ROGERS, John Thomas
    Garland, Texas 75044 (US)

(74) Representative: Barker Brettell LLP 
100 Hagley Road Edgbaston
Birmingham B16 8QQ
Birmingham B16 8QQ (GB)

   


(54) MINI-DAMPENERS AT PUMP COMBINED WITH SYSTEM PULSATION DAMPENER