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:
Mar. 22, 1988
Filed:
Jun. 08, 1987
Gunter Duda, Monchengladbach, DE;
Trutzschler GmbH & Co. KG, Monchengladbach, DE;
Abstract
An apparatus for regulating the rpm of the feed roller of the tuft feeder and having an rpm measuring device connected to at least one card roller for generating a first signal representing an operational magnitude of the card roller; a signal generating device connected to an output of the rpm measuring device and arranged for generating a second signal as a function of the first signal; a pressure sensing device for sensing pressure in the feed chute and for generating a third signal representing the pressure; a regulator connected to an output of the pressure sensing device and arranged for generating a fourth signal as a function of the third signal; and an integrating device connected to an output of the signal generating device and an output of the regulator for receiving the second and fourth signals and emitting a fifth signal as a function of the second and fourth signals. The integrating device is connected to the output amplifier for applying the fifth signal thereto. The output amplifier is connected to the rpm-variable drive motor of the feed roller for the tuft feeder.