Donald R Renfrow

US Patent:

45752966, Mar 11, 1986

Filed:

May 21, 1984

Appl. No.:

6/612230

Inventors:

Barry C. Kockler - Lewisville TX
Daniel T. Noonan - Plano TX
Donald F. Renfrow - Richardson TX

Assignee:

The Mead Corporation - Dayton OH

International Classification:

B42B 402

US Classification:

412 6

Abstract:

Apparatus is disclosed for preparing side-stitched documents. The apparatus includes means for feeding a series of sheets to be included in said document in a paused, timed, preselected order, a downstream, in-line accumulating station to receive the sheets, first clamping means associated with the accumulating station for grasping a complete assembly of sheets on the side opposite the side to be stitched, and means for moving said clamped assembly to a downstream, in-line stitching station. The stitching station includes a stitching head to make two or more stitches in the assembled sheets at selected loci along their edge, means for moving the stitched assembly downstream from the stitching station, stop means downstream of the stitching station to stop movement of the side-stitched document, second clamping means associated with said stop means for grasping the document on its upstream side transverse to the stitched side, means for releasing the first clamping means from the document and returning said clamping means to the accumulating station, and means for releasing the second clamping means and transferring the side-stitched, document to a packing station.

US Patent:

54759668, Dec 19, 1995

Filed:

Jun 10, 1994

Appl. No.:

8/258246

Inventors:

Donald F. Renfrow - Richardson TX

Assignee:

ElectroCom Automation, L.P. - Arlington TX

International Classification:

B65B 4326

US Classification:

533811

Abstract:

An apparatus for unfolding a bifolded mailpiece comprises a pair of pivotable receiving walls for receiving a bifolded mailpiece, a pair of receiving wall cylinders for pivotally moving the receiving walls and a pair of spreader walls for spreading the bifolded mailpiece received between said receiving walls, the spreader walls being pivotally mounted and actuated by a pair of spreader wall cylinders, a ram being provided for moving the spreader walls along a vertical axis to cooperate with the receiving walls to unfold the mailpiece.

US Patent:

50302930, Jul 9, 1991

Filed:

Mar 9, 1988

Appl. No.:

7/165904

Inventors:

Randall L. Rich - Plano TX
Donald F. Renfrow - Richardson TX

International Classification:

B08B 102
B08B 700
B08B 300

US Classification:

134 32

Abstract:

A circuit board cleaning apparatus (10) is disclosed which efficiently cleans a circuit board (12). The circuit board is positioned beneath a head assembly (24) whre it is grasped by a number of arms (38) and lowered into the interior of a tank (26). The board is oscillated about a vertical axis within the tank while immersed in a cleaning agent, such as water. Provisions are made to rinse the cleaned board and dry the board. After the board has been cleaned, it is removed from the tank and released. All cleaning, rinsing and drying operations are conducted within the tank.