Patent AU-2013207556-A1 (AU)
Title: Self regulating fluid bearing high pressure rotary nozzle with balance thrust force
Inventor: WRIGHT DOUGLAS E
IPC: B05B3/06
Filed: 2013-07-15
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date H(10) International Publication Number 21 April 2011 (21.04.2011) PCT W O 2011/046575 Al (51) International Patent Classification: DZ, EC, EE, EG, ES, Fl, GB, GD, GE, GH, GM, GT, B05B 3/06 (2006.01) HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, (21) International Application Number: ME, MG, MK, MN, MW, MNX, MY, MZ, NA, NG, NI, PCT/US2009/069436 NO, NZ, OM, PE, PG, PII, PL, PT, RO, RS, RU, SC, SD, (22) International Filing Date: SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, 23 December 2009 (23.12.2009) TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (25) Filing Language: English (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, (26) Publication Language: English GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, (30) Priority Data: ZW), Eurasian (AM, AZ, BY, KG, KZ, MD, RU, TJ, 12/577,571 12 October 2009 (12.10.2009) US TM), European (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, Fl, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, (71) Applicant (for all designated States except US): MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, STONEAGE, INC. [US/US]; 466 S. Skylane Drive, Du- TR), OAPI (BE, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, rango, Colorado 81303 (US). ML, MR, NE, SN, TD, TO). (72) Inventor; and Declarations under Rule 4.17: (75) Inventor/Applicant (for US only): WRIGHT, Douglas, - as to applicant's entitlement to apply for and be granted E. [US/US]; 466 S. Skylane Drive, Durango, Colorado a patent (Rle 4.17(ii)) 81303 (US). (74) Agents: WAHL, John, R. et al.; Greenberg Traurig, LLP, as to de applicants entitlement to claim the priority of - (7) Aent: WHEJoh, R et l.;Grenbeg Iaurg, LP, the earlier application (Role 4.1 7(iif 1200 - 17th Street, Suite 2400, Denver, Colorado 80202 (US). Published: (81) Designated States (unless otherwise indicated, Jbr every - with international search report (Art. 21(3)) kind of national protection available): AE, AG, AL, AM, - with amended claims and statement (Art. 19(1)) AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, (54) Title: SELF REGULATING FLUID BEARING IIIGII PRESSURE ROTARY NOZZLE WITII BALANCE THRUST 15 A31 B 5 C N11 41 20 3 42 31 Fig. 4 (57) Abstract: A high pressure rotary nozzle having a rotating shaft (1) operating within a fixed housing (B, C) wherein the axial force which acts upon the shaft due to the fluid pressure at the shaft inlet is balanced by allowing passage of a small amount of the pressurized fluid to be bled to a f rusto-conical chamber between the outside of the shaft and the inside of the housing where the Nq fluid pressure can act axially in an opposing direction upon the shaft to balance the axial inlet force. The balance of axial forces is self -regulating by controlling escape of the fluid through a f nsto-conical region between the shaft and housing. This further pro vides a fluid bearing between the two surfaces and allows use of interchangeable rotating jet heads (15) having jet orifices (16) which can be oriented in virtually any desirable configuration including axially forward of the nozzle.