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1. (WO1997018358) IMPROVED EXCAVATION BUCKET
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/018358 International Application No.: PCT/US1996/017955
Publication Date: 22.05.1997 International Filing Date: 08.11.1996
Chapter 2 Demand Filed: 12.05.1997
IPC:
E02F 9/28 (2006.01)
E FIXED CONSTRUCTIONS
02
HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
F
DREDGING; SOIL-SHIFTING
9
Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/-E02F7/160
28
Small metalwork for digging elements, e.g. teeth
Applicants:
BIERWITH, Robert, S. [US/US]; US
Inventors:
BIERWITH, Robert, S.; US
Agent:
SEKA, J., Georg ; Townsend and Townsend and Crew L.L.P. 8th floor, Two Embarcadero Center San Francisco, CA 94111, US
Priority Data:
08/557,44414.11.1995US
Title (EN) IMPROVED EXCAVATION BUCKET
(FR) BENNE D'EXCAVATION AMELIOREE
Abstract:
(EN) An excavating bucket (2) for rotating bucket excavators has a trough-shaped bucket having a forward edge formed by a U-shaped bucket lip (8). The lip (8) has multiple shank holes and a cutting tooth (12) in each shank hole which is removably attached to the lip (8). There are two sets of corner shank holes which lie on a circular line and receive a corresponding number of corner cutting teeth (40). Cutting portions of the corner teeth can be variously shaped so that the corner teeth (40) can be adapted for varying cutting conditions. An aft end of the bucket (20) is defined by a multiplicity of side-by-side chains (16) mounted on bars (18) extending transversely between side plates of the bucket.
(FR) Une benne-piocheuse (2) pour excavatrices à benne tournante est constituée d'une benne en forme de godet comportant un bord avancé formé par une lèvre de godet en forme d'U (8). Cette lèvre (8) comporte plusieurs cavités pour queue de fixation de dent et une dent de coupe (12) dans chaque cavité, à montage amovible sur la lèvre (8). Le dispositif comprend deux séries de cavités pour queue de fixation de dent rangées selon une ligne circulaire et logeant un nombre correspondant de dents de coupe d'angle (40). Les formes des parties coupantes des dents d'angle sont susceptibles de varier afin de s'adapter à diverses situations de coupe. De multiples chaînes juxtaposées (16), montées sur des barres (18) disposées transversalement entre des plaques latérales de la benne, délimitent le fond arrière de la benne (20).
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, UZ, VN
African Regional Intellectual Property Organization (ARIPO) (KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0879322AU1996076109