E - Fixed Constructions – 21 – D
Patent
E - Fixed Constructions
21
D
61/47
E21D 20/02 (2006.01) F16B 13/14 (2006.01)
Patent
CA 2032665
ABSTRACT OF THE DISCLOSURE An anchor device for securing a rock bolt in a borehole of predetermined diameter includes an elongated plastic cartridge having a first insertable end and a second end, a side wall extending between the ends, and stiffening ribs integrally formed in the sidewall for stiffening the cartridge to permit insertion thereof into the borehole.
Mahyera Anil
Mraz Dennis Z.
Engineered Instruments Inc.
Mahyera Anil
Mraz Dennis Z.
Rogers & Scott
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