RF

Raymond Keith Foster

KI Keith Investments: 10 patents #1 of 7Top 15%
UN Unknown: 7 patents #1,646 of 83,584Top 2%
KM Keith Manufacturing: 3 patents #9 of 19Top 50%
📍 Madras, OR: #1 of 47 inventorsTop 3%
🗺 Oregon: #324 of 28,073 inventorsTop 2%
Overall (All Time): #22,297 of 4,157,543Top 1%
81
Patents All Time

Issued Patents All Time

Showing 51–75 of 81 patents

Patent #TitleCo-InventorsDate
5638943 Drive assembly for reciprocating slat conveyor 1997-06-17
5622095 Hydraulic drive and control system 1997-04-22
5605221 Drive unit with bearing mount 1997-02-25
5562018 Hydraulic valve 1996-10-08
5505292 Reciprocating conveyor slats with pointed ridges for supporting pallets 1996-04-09
5489018 Stem for mounting reciprocating slat conveyor 1996-02-06
5445260 Edge seal for reciprocating conveyor 1995-08-29
5433312 Drive assembly for conveyor slats of reciprocating floor conveyor 1995-07-18
5419426 Snap-in conveyor slat wear plate 1995-05-30
5390781 Mounting assembly and method for reciprocating slat conveyor 1995-02-21
5375619 Protective circuit for pressure and return 1994-12-27
5373777 Linear hydraulic motor with snubber 1994-12-20
5361679 Directional control valve with pilot operated poppet valves 1994-11-08
5355994 Replaceable wear surface for conveyor slats 1994-10-18
5350054 Ball block for mounting linear motor 1994-09-27
5325763 Internal check valve 1994-07-05
5315916 System of linear hydraulic motors 1994-05-31
5313872 End of stroke cushion for a linear hydraulic motor 1994-05-24
5303816 Seal strip for reciprocating floor conveyors 1994-04-19
5255712 Check valve pull assembly 1993-10-26
5234309 Container for holding material which includes a drainable liquid 1993-08-10
5193661 System of linear hydraulic motors 1993-03-16
5145309 Container for liquid bearing material 1992-09-08
5103866 Poppet valve and valve assemblies utilizing same 1992-04-14
5044870 Method for collecting and compacting garbage and then loading it into a road vehicle 1991-09-03