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:
May. 18, 1982
Filed:
Feb. 06, 1981
Eugene C Varrasso, Heath, OH (US);
Owens-Corning Fiberglas Corporation, Toledo, OH (US);
Abstract
An apparatus is provided for controlling the amount of dry particulate matter and liquid added to a rotary pelletizer. A transducer placed within the pelletizer senses a characteristic of the mixed material in the pelletizer. This characteristic may be, for example, the level of the batch or the size of the pellets produced. The transducer signal is then conditioned to provide a modified signal level corresponding to a desired characteristic level and which varies about that level corresponding, for example, to the variations of pellet size about its desired size. The modifier contains two stages which may be used independently with the other stage being used as a straight through one to one amplifier. The two stages may also be used cooperatively to provide an intermediate signal. The intermediate signal can be used to operate a display device and as the input to a second amplifier. The second amplifier then provides a conditioned signal input into a larger control system.