Patent AU-2021261845-B2 (AU)
Title: Self-winding washer and method of installing a washer
Inventor: SHANAHAN DARREN
IPC: H02G15/013
Filed: 2021-06-15
Granted: 2022-06-23
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) 
(19) World Intellectual Property 
(1) Organization11111111111111111111111I1111111111111i1111liiiii 
International Bureau (10) International Publication Number 
(43) International Publication Date W O 2021/253075 Al 
23 December 2021 (23.12.2021) W IPO I PCT 
(51) International Patent Classification: (72) Inventor: SHANAHAN, Darren; 11 Union Street, Subia
F16B 43/00 (2006.01) H02G 15/013 (2006.01) co, Western Australia 6008 (AU).  
H02G 15/06 (2006.01) H02G 3/08 (2006.01) (74) Agent: GRIFFITH HACK; GPO BOX 1285, Melbourne, 
(21) International Application Number: Victoria 3000 (AU).  
PCT/AU2021/050611 (81) Designated States (unless otherwise indicated, for every 
(22) International Filing Date: kind ofnational protection available): AE, AG, AL, AM, 
15 June 2021 (15.06.2021) AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, 
CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, 
(25)FilingLanguage: English DZ, EC, EE, EG, ES, Fl, GB, GD, GE, GH, GM, GT, HN, 
(26) Publication Language: English HR, HU, ID, IL, IN, IR, IS, IT, JO, JP, KE, KG, KH, KN, 
KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, 
(30)PriorityData: 15 June 2020 (15.06.2020) AU ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, 
NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, 
(71) Applicant: WOODSIDE ENERGY TECHNOLOGIES SA, SC, SD, SE, SG, SK, SL, ST, SV SY, TH, TJ, TM, TN, 
PTY LTD [AU/AU]; 11 Mount Street, Perth, Western Aus- TR, TT, TZ, UA, UG, US, UZ, VC, VN, WS, ZA, ZM, ZW.  
tralia 6000 (AU). (84) Designated States (unless otherwise indicated, for every 
kind of regional protection available): ARIPO (BW, GH, 
(54) Title: SELF-WINDING WASHER AND METHOD OF INSTALLING A WASHER 
10 12 
A 28 
26 
FIGURE 1 
(57) Abstract: A self-winding washer (10) comprises an elongate element (12) that is sprung (i.e., pre-tensioned) to self-wind about 
an axis (14). The pre-tensioning enables the washer (10) to be manipulated between a relaxed or wound state, and an unwound state.  
enlWhen in the relaxed state, the elongate element (12) forms a wound washer where, for at least a portion of one revolution about the 
axis (14), the elongate element radially overlaps itself where the radially overlapped portion is sprung or biased into contact with itself.  
The winding of the elongate element (12) is in a spiral manner and in a single common plane about the axis (14). Opposite sides (16) 
and (18) of the elongate element can be provided with complementary profiles to nest in or inter-fit with each other when the washer 
is wound about the axis (14).
WO 2021/253075 A1|||||||||||||||||||||||||111111|||||||||||||||||||||||||||H|||||||||||H||||||||||||||||||| 
GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, 
UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, 
TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, 
EE, ES, Fl, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, 
MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, 
TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, 
KM, ML, MR, NE, SN, TD, TG).  
Published: 
- with international search report (Art. 21(3))