The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 09, 1986
Filed:
Sep. 06, 1985
Cecil R Sudbrack, New Holland, PA (US);
Linwood H Bowen, New Holland, PA (US);
Donald O Bigelow, Webster, NY (US);
New Holland, Inc., New Holland, PA (US);
Abstract
In a bale case (20) of an agricultural baler, a reciprocating plunger (71) is connected by a connecting rod assembly (90) and a wrist pin (92) to a driving crankshaft (74). A tension adjusting system (60) is provided for adjusting the dimensions of a bale case (20). The tension adjusting system (60) is responsive to a signal produced by sensors which sense stress when a compactive force is applied by the plunger (71) to crop material in the bale case (20). In one embodiment shear stress sensors (124, 126, 128, and 130) are mounted in annular recesses (120, 122) on the exterior of a wrist pin (92) to sense upon compaction the shear stress experienced by the wrist pin (92) in shear planes (160A, 160B). In another embodiment shear stress sensors (170, 171, 172, and 173) are mounted on an interior surface (174) of a wrist pin (90') to sense the shear stress experienced by the wrist pin (92') in shear planes (176, 177). In an another embodiment, bending stress sensors (182, 183, 184 and 185) are mounted on chordal flat portions (180 and 181) of a wrist pin (92') to sense upon compaction the bending stress experienced by the wrist pin (92') in a bending plane. In another embodiment, a load cell (190) with stress sensors (194, 195) mounted thereon is mounted between a connecting rod plate (98) and a connecting rod bearing housing (102).