Inventor · disambiguated record
David A. Ostergaard
Also filed as: OSTERGAARD DAVID A
15 granted patents·224 citations·filing 1989–2001
94Inventor score
Files withCEDARAPIDS INC14
Top patents by PatentIndex Score
15 records- 0183US5971306AGyratory crusher having tramp iron relief system with an annular hydraulic manifoldCEDARAPIDS INC·Filed 1998·Granted Oct 26, 1999·35 cites·21 claims
- 0282US5803382AGyratory crusher having corrugation-like-sealCEDARAPIDS INC·Filed 1997·Granted Sep 8, 1998·23 cites·25 claims
- 0376US5944265AGyratory crusher having self-contained lubrication systemCEDARAPIDS INC·Filed 1997·Granted Aug 31, 1999·19 cites·13 claims
- 0472US6918492B2Baffle assembly for a sealed shaft on a vibratory apparatusFiled 2001·Granted Jul 19, 2005·14 cites·12 claims
- 0569US6641068B2Jaw for a jaw crusherCEDARAPIDS INC·Filed 2001·Granted Nov 4, 2003·9 cites·32 claims
- 0662US6347708B1Wheel case for a vibratory apparatusCEDARAPIDS INC·Filed 1999·Granted Feb 19, 2002·19 cites·14 claims
- 0760US6155507ADevice for securing the stationary jaw of a jaw crusherCEDARAPIDS INC·Filed 1999·Granted Dec 5, 2000·16 cites·29 claims
- 0859US5005772AImpeller bar installation and repositioning means for impact crushers having open type rotorsCEDARAPIDS INC·Filed 1989·Granted Apr 9, 1991·14 cites·7 claims
- 0954US5004169AImpeller bar assembly with adjustable locking mechanismCEDARAPIDS INC·Filed 1989·Granted Apr 2, 1991·12 cites·13 claims
- 1054US4925114AImpeller bar installation and repositioning means for impact crushers having "open" type rotorsCEDARAPIDS INC·Filed 1989·Granted May 15, 1990·12 cites·7 claims
- 1150US6161650ALubricating system for a vibratory apparatusCEDARAPIDS INC·Filed 1999·Granted Dec 19, 2000·16 cites·26 claims
- 1250US5875981AGyratory crusher having tramp iron relief systemCEDARAPIDS INC·Filed 1997·Granted Mar 2, 1999·12 cites·18 claims
- 1347US5111569AMethod of locking an impeller bar against a seatCEDARAPIDS INC·Filed 1991·Granted May 12, 1992·10 cites·4 claims
- 1443US6126101ADouble wedge key plates for a jaw crusherCEDARAPIDS INC·Filed 1999·Granted Oct 3, 2000·9 cites·15 claims
- 1537US5799886AGyratory crusher having thermal relief systemCEDARAPIDS INC·Filed 1997·Granted Sep 1, 1998·4 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →