Keith Manufacturing Co.

Other

Keith Investments, LLC

Raymond Keith Foster

Foster, Randall Mark

Randall Mark Foster

Raymond K Foster

Daniel W Jackson

Scott Delamarter

Nathan Keeley

John Cook

Kenneth Stout

Victor Matthews

Michael Christopher House

Kenneth A Stout

William J Onricek

John Scott Cook

William J Ondricek

A roll-formed steel slat for use in a reciprocating floor slat conveyor system. The roll-formed steel slat is formed in a manner so as to have an upper, load-carrying surface, and a pair of downwardly depending side legs. Each side leg terminates in a foot. One foot is vertically offset from the other to provide a 'hold-down' function that prevents the slat from vertically rising as the slat reciprocates back-and-forth.

Attachment plate for all-steel reciprocating floor slat system

All-steel reciprocating floor slat system

The invention disclosed here is a moving headboard for use in connection with a reciprocating floor slat system. It is particularly well-suited for use in connection with load-hauling trailers that have built-in reciprocating floor slat conveyors for unloading the trailer. Trailers of this kind are used in lieu of hydraulic lifts and involve inching the load off the trailer. The moving headboard sweeps the trailer floor clean during the unloading process.

Moving cleanout for reciprocating conveyor system

Opposite end sections () of a piston/cylinder drive unit () are clamped to longitudinally spaced apart transverse mounting beams (), by a fixed clamp parts connected to the mounting beams () and removable clamp parts that are connected by bolts to the fixed clamp parts. The piston rod end sections () include longitudinal passageways having outer end openings that project outwardly from the clamps. Manifolds are secured to the mounting beams () outwardly of the end openings in the piston rod end sections (). A detachable coupling connects ports in the manifold with the end openings in the piston rod end sections (). The piston cylinder drive unit () can be detached from the frame by first detaching the fluid couplings and then detaching the clamps which clamp the piston rod end sections () to the mounting beams ().

Drive/frame assembly for a reciprocating slat conveyor

A trailer (T) and a dock (D) are provided with substantially identical slat conveyors (). Each conveyor () has alternating conveyor slats (') and lifting/holding slats (&#x2032;). The trailer (T) is backed up to the dock (D). Upper portions of the lifting/holding slats (&#x2032;) are coupled together at their ends. The confronting ends of the conveying slats (&#x2032;) are also coupled together. A mechanism carried by the dock (D) raises and lowers the upper portions of the two sets of lifting/holding slats (&#x2032;) a drive mechanism carried by the dock (D) where it reciprocates both sets of conveying slats (&#x2032;).

Releasable connection between members

A base structure () for a reciprocating slat conveyor is formed from a plurality of cellular base sections () that are connected by tongue and groove joints (). Each section is constructed from a lower wall (), an upper wall () placed vertically above the lower wall (), first and second opposite side portions () connected to the upper and lower walls () and a plurality of divider walls () spaced apart between the side portions () and extending vertically between the upper and lower walls (). Each base section () comprises at least one elongated guide beam () that extends upwardly from the upper wall (). The guide beam () has a top () on which an elongated bearing () is placed. The bearing () snaps onto the top () and a conveyor slat () snaps onto the bearing ().

Cellular base structure for a reciprocating slat conveyor

Transverse frame members () extend across and are connected to longitudinal frame members (). Frame member () divides longitudinal frame members () into major and minor parts (). The minor parts () are braced by gussets () which extend between the minor parts () and a vertical web portion () of the transverse beam (). The minor parts () of the frame members () and the central portion of the frame member () form a nook () in the cylinder components () are received. Piston rod portions () of the assembly of linear motors extend from the cylinder component portions to guide bearings () mounted in openings () formed in the vertical web () of the second transverse beam (). Bolts are used to connect the inner corner portions of the assembly of linear hydraulic motors to mounting pads (). More bolts are used to connect the outer corner portion of the cylinder components to mounting lugs ().

Drive unit mount for reciprocating slat conveyor

A reciprocating floor conveyor ( ) including a support frame ( ), and a conveyor floor ( ), which is comprised of a plurality of laterally spaced-apart conveyor slats ( ), a plurality of laterally spaced-apart holding slats ( ), and a series of divider planks ( ). Divider planks ( ) are fixedly secured to the upper portion of support framework ( ). Conveyor slats ( ) are mounted on support frame ( ) for longitudinal reciprocation between &ldquo;start&rdquo; and &ldquo;advanced&rdquo; positions. Holding slats ( ) are mounted on support frame ( ) for vertical movement between and &ldquo;up&rdquo; position in which the holding slats ( ) are above the conveyor slats ( ), and a &ldquo;down&rdquo; position, in which the holding slats ( ) are below the conveyor slats ( ). The load is conveyed by lowering the holding slats ( ), advancing the conveyor slats ( ), to convey the load, raising the holding slats and retracting the conveyor slats to their &ldquo;start&rdquo; position, and repeating the process.

Reciprocating floor conveyor for conveying palletized loads or the like

In a reciprocating slat conveyor, at least three slat sets of at least one slat (CS) each are driven by piston-cylinder drive units (26), one for each slat set. Each drive unit (26) is provided with a four-way proportional directional control (PDC) valve. Each PDC valve has a first position of adjustment in which it connects a first working chamber of its drive unit (26) to pressure (B) and a second working chamber to tank (T), and a second position of adjustment in which it connects the second working chamber to pressure (P) and the first working chamber to tank (T). Control logic (96) provides electrical control signals for directing the PDC valves to operate the drive units to advance more than half of the slat sets simultaneously in a first, conveying direction, and to retract the remaining slat sets in the opposite direction at a higher rate of speed. A controller compares the control logic signals with feedback signals generated by a separate linear position sensor PS for each slat set. The controller compares the desired positions of the slat sets, as determined by the control logic (96), with the actual positions of the slat sets, as determined by the position sensors PS. The difference between the desired and actual positions of the slat sets is used to generate a corrected control signal which the controller sends to proportional amplifiers (PA). The proportional amplifiers (PA) provide control signals to the PDC valves, for changing the rate of hydraulic fluid movement into and out from the working chambers of the drive units (26) for the advancing conveyor slat sets, towards establishing the desired pattern of movement of the slat sets. The conveyor includes a drive module comprising a pair of longitudinally spaced apart end frame members, each extending transversely of the conveyor, and a center frame member positioned longitudinally between the two end frame members, and also extending transversely of the conveyor.

Continuously advancing reciprocating slat conveyor

A reciprocating floor conveyor (10) including a support frame (12), and a conveyor floor (14), which is comprised of a plurality of laterally spaced-apart conveyor slats (16), a plurality of laterally spaced-apart holding slats (18), and a series of divider planks (20). Divider planks (20) are fixedly secured to the upper portion of support framework (12). Conveyor slats (16) are mounted on support frame (12) for longitudinal reciprocation between 'start' and 'advanced' positions. Holding slats (18) are mounted on support frame (12) for vertical movement between and 'up' position in which the holding slats (18) are above the conveyor slats (16), and a 'down' position, in which the holding slats (18) are below the conveyor slats (16). The load is conveyed by lowering the holding slats (18), advancing the conveyor slats (16), to convey the load, raising the holding slats and retracting the conveyor slats to their 'start' position, and repeating the process.

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Madras, OR, United States of America

Randall Mark Foster