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. 04, 1997
Filed:
Jan. 30, 1996
Daniel L Merrill, Montaque, MI (US);
CMI International, Inc., Southfield, MI (US);
Abstract
The invention is characterized by a rack mechanism (60) interconnecting a fixed platen (41) and a movable platen (43) for preventing the movable platen (43) from cocking relative to its guide posts (38) during vertical movement thereof. The rack mechanism (60) includes a gear rack (61) paired with each of the guide posts (38) with the bottom end of each gear rack (61) secured to the movable platen (43), and a spur gear (71) in meshing engagement with each of the gear racks (61) and supported on the fixed platen. A box-like framework interconnects the gear racks (61) and a synchronizing drive system simultaneously rotates the spur gears (71) in unison and includes parallel shafts (72) on opposite sides of the framework with two of the spur gears (71) supported on each of the shafts (72) and in meshing engagement with two of the gear racks (61). The running tolerances between the spur gears (71) and the gear racks (61) can be adjusted by pillow blocks (76) supporting the shafts (72).