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Oswald Cornelius Dannhauser Zaayman Patents |
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Inventor: Zaayman; Oswald Cornelius Dannhauser
Address: Pretoria, ZA
No. of patents: 3
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| D478599 |
Lip for an excavation bucket |
August 19, 2003 |
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| 6990760 |
Lip for an excavation bucket |
January 31, 2006 |
| The invention relates to a lip for an excavation bucket. The lip includes a lower plate defining a plurality of integral projections along a front edge thereof, an upper plate and a central plate sandwiched between the lower plate and the upper plate so as to form a laminated structure. |
| 6581995 |
Hoist arrangement for a dragline rigging |
June 24, 2003 |
| The invention relates to a hoist arrangement (10) for a dragline rigging. The hoist arrangement includes a triangular framework comprising a hollow fibreglass spreader bar (14) and two fibreglass ties (12) which are attachable to the spreader bar. The fibreglass ties (12) are connectable |
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