US 10,807,338 B2Granted

Rubber balers

AssigneeKarltex Machine, Inc.

InventorsSig Fragstein, Donnie L. Cobb, Carl Johnson, Paul Sozzi

Life of this patent

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Abstract

A bailing apparatus may include a multi-component bolster assemblies that may ease installation and removal, reduce wear and tear and maintenance, and/or improve baling efficiency by reducing material waste, imperfections, and/or contamination. The bolster assemblies may include a plurality of coupling portions that engage a hydraulic rod and may enable the bolster assembly to self-center within a press chamber during normal baling operations. The bolster assemblies also may include an island portion that may be attached to the coupling portions and to a bolster cap, and the latter may be attached using retainer bolts having substantially planar heads that may define lips that run about frustums. The bolts may substantially planar head may reduce irregularities in the bale and the lips may prevent material seepage into the bolster assemblies.

Claims20

Dependent claims

A baling apparatus for compressing a compressible material, the baling apparatus comprising:

a hydraulic rod;
a bolster assembly including
a first coupling portion attached to a second coupling portion, the first coupling portion and the second coupling portion cooperatively defining a cavity for receiving a portion of the hydraulic rod;
an island portion attached to the first coupling portion and the second coupling portion by a plurality of island bolts that run through either the first coupling portion, the second coupling portion, or both and into the island portion;
and
a bolster cap removably attached to the island portion by a plurality of retainer bolts, the retainer bolts each including a rounded rectangular head attached to a frustoconical portion, the head having a planar surface, the frustoconical portion attached to a threaded shaft distal the head, the bolster cap including a plurality of countersunk bores that receive the retainer bolts, the countersunk bores having complementary shapes to those of the retainer bolts;
and
a press chamber for receiving the bolster assembly and the compressible material, wherein compression force is provided by movement of the bolster inside the press chamber.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/215,164Filed 10 Dec 2018 · continuation
Priority: 5 Jan 2016
Published: US 2019/0193360 A127 Jun 2019
Granted: 20 Oct 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification16 codes

B30B 9/3021
Details: press rams
B29B 15/026
Of crude rubber, gutta-percha, or similar substances: baling of rubber
B30B 9/3014
Details: ejection means
B30B 9/3057
For baling; Compression boxes therefor: fluid-driven presses

Family

Application14/988,488Parent of this division · filed 5 Jan 2016
Application15/847,311Parent of this continuation · filed 19 Dec 2017
US 9,878,511 B2Parent of this division · filed 30 Jan 2018
US 2019/0193360 A1Pre-grant publication · published 27 Jun 2019
US 10,189,224 B2Parent of this continuation
Application15/847,311Parent of this division
US 2017/0190132 A1Published application
US 2018/0133996 A1Published application
US 10,807,338 B2This patent

From the US filing history. Foreign family members aren’t listed.