Larry H Cantrell

US Patent:

52174255, Jun 8, 1993

Filed:

Jan 6, 1992

Appl. No.:

7/818644

Inventors:

Larry K. Cantrell - Spartanburg SC

Assignee:

Grant Machinery - Inman SC

International Classification:

B31B 374
B31B 302

US Classification:

493465

Abstract:

An apparatus for squaring folded corrugated paperboard boxes and the like includes a frame, an upper drive assembly and a lower roll assembly. The upper drive assembly and lower roll assembly define a split-nip. The upper drive assembly includes a pair of independent wheels which may be controlled to adjust or change the orientation of a folded corrugated box passing through the nip. The upper drive assembly is pivoted to the frame for adjustment of the nip. The apparatus is positioned to deliver folded corrugated boxes to a counter/ejector from a folder/gluer.

US Patent:

47155965, Dec 29, 1987

Filed:

Apr 23, 1986

Appl. No.:

6/855117

Inventors:

Larry K. Cantrell - Spartanburg SC
Edwin J. Smith - Duncan SC

Assignee:

Grant Machinery Inc. - Inman SC

International Classification:

B65H 306

US Classification:

271116

Abstract:

A paperboard sheet feeder for feeding paperboard blanks to the feed rolls of processing equipment includes a support table and a pair of roller assemblies mounted on the support table. A drive includes gears connected to the roller assemblies through one-way clutches. A drive belt has ends secured to a slide block. The belt engages the gears. The slide block is mounted on guide bars for reciprocating movement. The drive belt, gears and one-way clutches convert reciprocating movement of the slide block into rotary movement of the roller assemblies. A source of vacuum communicates with the support table to draw a paperboard sheet into contact with the roller assemblies.