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:
Feb. 24, 1976
Filed:
Jun. 03, 1974
Allison W Blanshine, Lititz, PA (US);
Sperry Rand Corporation, New Holland, PA (US);
Abstract
A machine to form compact rolls of hay of substantial size by picking up a swath or windrow of hay and the like from a field, engage it by cooperating upper and lower endless flexible aprons driven in suitable directions to coil the hay into a compact roll while supported upon floor means mounted stationarily in the bottom of the machine to effect baling of all the hay without loss upon the ground. As the roll type bale of hay increases in diameter, the upper apron engages the upper portion thereof and applies constant unit pressure thereon to produce substantially uniform density throughout the roll regardless of diameter thereof. Tension spring means are used to produce the pressure applied to the roll by the upper apron to effect such constant unit pressure upon the roll.