Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ADAPTED GROUT DELIVERY SLEEVE
Document Type and Number:
WIPO Patent Application WO/2019/051512
Kind Code:
A3
Abstract:
Rock anchor assembly (10), including: a tubular sleeve (12) which extends between a first end (56) and a second end (58) and which has anchor retaining portion (62) which opens on the second end (58); a rock anchor (14) with an elongate body (16) which extends between a distal end (18) and a proximal end (20) and which is received in the tubular sleeve with the proximal and distal ends of the body projecting from the first and second ends respectively of the sleeve; a tensioning and locking assemblage (24) on the anchor body between the proximal end and the first end of the sleeve, a forward part of which is engageable with the first end of the sleeve; and a mechanical anchor (42) engaged to the anchor body at the distal end which, from an unexpanded configuration, is radially expansible to an expanded configuration; wherein the anchor retaining portion is adapted to at least partially retain the mechanical anchor in the unexpanded configuration; and wherein the anchor retaining portion is adapted to expand circumferentially to accommodate retracted ingress of the anchor in the expanded configuration.

Inventors:
CAWOOD, Martin (Aeroton, 1451 Johannesburg, 1451, ZA)
VISSER, Henri (Aeroton, 1451 Johannesburg, 1451, ZA)
BERGHORST, Adrian (Aeroton, 1451 Johannesburg, 1451, ZA)
Application Number:
ZA2018/050053
Publication Date:
April 25, 2019
Filing Date:
September 07, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NCM INNOVATIONS (PTY) LTD (109 Adcock Ingram Avenue, Aeroton Johannesburg, 1451 Johannesburg, 1451, ZA)
International Classes:
E21D20/02; E21D21/00; F16B13/06
Domestic Patent References:
WO2017120633A12017-07-20
WO2016210456A22016-12-29
WO2011020144A12011-02-24
Foreign References:
US4656806A1987-04-14
AU2016101727A42016-11-03
ZA201604248B2017-07-26
Attorney, Agent or Firm:
TABERER, Roy Francis et al. (Diep River Cape Town, 7800 Cape Town, 7800, ZA)
Download PDF: