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. 02, 1997
Filed:
Mar. 27, 1995
Jimmy R Frazier, Norman, OK (US);
John D Richardson, Oklahoma City, OK (US);
Greg P Coxsey, Norman, OK (US);
Burford Corporation, Maysville, OK (US);
Abstract
A bag neck tying device for tying a ribbon about gathered material. The bag neck tying device includes a bag gathering mechanism for moving a bag neck into engagement with a bag stop lever controlled by an electric brake. The bag neck tying device further includes a needle assembly for wrapping the ribbon around the gathered neck of the bag, a twister hook assembly for twisting the ribbon of tie material and a ribbon holder-shear assembly for cutting and holding the end of the ribbon. The gathering, needle, twister and holder-shear assemblies are controlled by bi-directional, brush type DC servomotors driven by full wave rectified solid state DC motor controllers in a closed loop control system which incorporates a software driven microcontroller for delivering reference input signals to the motor controllers for initiating and controlling pre-assigned functions of the motors driving the various tier assemblies.