Inventor · disambiguated record
Raymond Keith Foster
Also filed as: FOSTER RAYMOND · FOSTER RAYMOND K · FOSTER RAYMOND KEITH
82 granted patents·4 pending applications·1,437 citations·filing 1975–2020
99Inventor score
Files withFOSTER RAYMOND K22FOSTER RAYMOND KEITH11KEITH INVESTMENTS LLC9KEITH MFG CO3FOSTER RAYMOND1
Top patents by PatentIndex Score
86 records- 0195US5103866APoppet valve and valve assemblies utilizing sameFOSTER RAYMOND K·Filed 1991·Granted Apr 14, 1992·63 cites·9 claims
- 0289US4923356AApparatus for collecting and compacting garbage and then loading it into a road vehicleFOSTER RAYMOND K·Filed 1988·Granted May 8, 1990·47 cites·5 claims
- 0388US7083041B1Slat conveyor having conveying slats and lifting slatsKEITH INVESTMENTS LLC·Filed 2006·Granted Aug 1, 2006·22 cites·17 claims
- 0488US6439375B1Reciprocating floor conveyor for conveying palletized loads or the likeFOSTER RAYMOND KEITH·Filed 1995·Granted Aug 27, 2002·42 cites·12 claims
- 0586US7510071B2Reciprocating slat conveyor with cleanout apparatusFOSTER RAYMOND KEITH·Filed 2008·Granted Mar 31, 2009·14 cites·37 claims
- 0686US5193661ASystem of linear hydraulic motorsFOSTER RAYMOND K·Filed 1992·Granted Mar 16, 1993·39 cites·4 claims
- 0782US6848569B1Reciprocating slat conveyor with fixed and movable slatsKEITH INVESTMENTS LLC·Filed 2004·Granted Feb 1, 2005·25 cites·14 claims
- 0881US7243779B2Reciprocating slat conveyor with V-slatsFOSTER RAYMOND KEITH·Filed 2005·Granted Jul 17, 2007·13 cites·1 claims
- 0981US7185755B1Slat conveyor having conveying slats and lifting/holding slatsKEITH INVESTMENTS LLC·Filed 2006·Granted Mar 6, 2007·14 cites·10 claims
- 1081US5390781AMounting assembly and method for reciprocating slat conveyorFiled 1993·Granted Feb 21, 1995·28 cites·49 claims
- 1181US5044870AMethod for collecting and compacting garbage and then loading it into a road vehicleFOSTER RAYMOND K·Filed 1990·Granted Sep 3, 1991·56 cites·5 claims
- 1279US6585106B1Reciprocating slat conveyorsFiled 2002·Granted Jul 1, 2003·22 cites·16 claims
- 1379US6575293B2Connector and connection method for conveyor slatsFiled 2001·Granted Jun 10, 2003·22 cites·57 claims
- 1479US6393665B1Method and apparatus for mixing textile fibers and particulate materialsFiled 2000·Granted May 28, 2002·15 cites·38 claims
- 1579US6065923AVehicle/dock alignment systemFiled 1998·Granted May 23, 2000·33 cites·28 claims
- 1679US5145309AContainer for liquid bearing materialFOSTER RAYMOND K·Filed 1990·Granted Sep 8, 1992·34 cites·15 claims
- 1778US6782994B1Heavy-duty reciprocating slat conveyorKEITH INVEST L L C·Filed 2003·Granted Aug 31, 2004·25 cites·22 claims
- 1878US5934445AContinuously advancing reciprocating slat conveyorFOSTER RAYMOND KEITH·Filed 1997·Granted Aug 10, 1999·37 cites·22 claims
- 1978US5355994AReplaceable wear surface for conveyor slatsFOSTER RAYMOND K·Filed 1993·Granted Oct 18, 1994·32 cites·20 claims
- 2077US7398873B2Releasable connection between membersKEITH MFG CO·Filed 2006·Granted Jul 15, 2008·9 cites·8 claims
- 2177US5350054ABall block for mounting linear motorFOSTER RAYMOND K·Filed 1993·Granted Sep 27, 1994·27 cites·36 claims
- 2276US6019215AReciprocating slat conveyors with pressure sealsFiled 1998·Granted Feb 1, 2000·30 cites·11 claims
- 2376US5996772AReciprocating slat conveyors with pressure sealsFiled 1999·Granted Dec 7, 1999·30 cites·14 claims
- 2476US5806660AReciprocating slat conveyorsFiled 1997·Granted Sep 15, 1998·30 cites·21 claims
- 2575US6442803B1Method of producing blends of cotton lintFOSTER RAYMOND KEITH·Filed 2001·Granted Sep 3, 2002·17 cites·28 claims
- 2674US7380652B2Reciprocating slat conveyorFOSTER RAYMOND KEITH·Filed 2005·Granted Jun 3, 2008·9 cites·19 claims
- 2774US6409009B1Conveyor slat connector and connection methodFiled 2000·Granted Jun 25, 2002·18 cites·45 claims
- 2873US7243780B1Conveyor slat drive beam connectionKEITH INVESTMENTS LLC·Filed 2005·Granted Jul 17, 2007·10 cites·7 claims
- 2972US5860508AReciprocating tube conveyorsFiled 1997·Granted Jan 19, 1999·22 cites·22 claims
- 3072US5727672APultruded conveyor slatsFiled 1997·Granted Mar 17, 1998·27 cites·25 claims
- 3171US6056113ADrive beam to drive unit connectionsFiled 1999·Granted May 2, 2000·25 cites·26 claims
- 3271US6026949ADrive units and drive assembly for reciprocating slat conveyorsFiled 1999·Granted Feb 22, 2000·23 cites·12 claims
- 3370US7316307B2Reciprocating slat conveyor with continuous splash guard bearingsFOSTER RAYMOND KEITH·Filed 2006·Granted Jan 8, 2008·10 cites·15 claims
- 3470US5911555AVehicle/dock loading/unloading conveyor systemFiled 1998·Granted Jun 15, 1999·25 cites·17 claims
- 3570US5325763AInternal check valveFOSTER RAYMOND K·Filed 1993·Granted Jul 5, 1994·20 cites·23 claims
- 3670US5234309AContainer for holding material which includes a drainable liquidFOSTER RAYMOND K·Filed 1991·Granted Aug 10, 1993·25 cites·4 claims
- 3769US4817783ASingle piston rod hydraulic driveFOSTER RAYMOND K·Filed 1988·Granted Apr 4, 1989·21 cites·10 claims
- 3868US7374034B2Reciprocating slat conveyor with bearing planks on fixed slats between moving slatsKEITH INVESTMENTS LLC·Filed 2006·Granted May 20, 2008·7 cites·15 claims
- 3968US5255712ACheck valve pull assemblyFOSTER RAYMOND K·Filed 1992·Granted Oct 26, 1993·27 cites·10 claims
- 4067US7604109B2Releasable connection between membersKEITH MFG CO·Filed 2007·Granted Oct 20, 2009·5 cites·8 claims
- 4167US5638943ADrive assembly for reciprocating slat conveyorFiled 1995·Granted Jun 17, 1997·24 cites·49 claims
- 4267US4712467ACombined linear hydraulic motor and transfer valveFOSTER RAYMOND K·Filed 1986·Granted Dec 15, 1987·23 cites·5 claims
- 4366US6006896AReciprocating slat conveyor with front end drive assemblyFiled 1999·Granted Dec 28, 1999·22 cites·40 claims
- 4466US5489018AStem for mounting reciprocating slat conveyorFiled 1995·Granted Feb 6, 1996·18 cites·24 claims
- 4565US6013585APultruded conveyor slat and pultrusion methodFOSTER RAYMOND KEITH·Filed 1998·Granted Jan 11, 2000·26 cites·13 claims
- 4664US7131526B2Slat conveyor with V-slats and slat support beamsKEITH INVESTMENTS LLC·Filed 2006·Granted Nov 7, 2006·5 cites·17 claims
- 4764US5655645ASeal member for reciprocating slat conveyorsFiled 1996·Granted Aug 12, 1997·22 cites·20 claims
- 4864US5419426ASnap-in conveyor slat wear plateFiled 1994·Granted May 30, 1995·20 cites·9 claims
- 4964US4969389AMultisection hydraulic drive unit with single piston rodFOSTER RAYMOND K·Filed 1989·Granted Nov 13, 1990·18 cites·7 claims
- 5063US6675956B1Slat conveyor with lifting slats and conveying slatsFiled 2000·Granted Jan 13, 2004·10 cites·23 claims
Showing the top 50 of 86 patent records by PatentIndex Score.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →