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. 27, 1979
Filed:
Jul. 28, 1977
Arthur W Walsh, Virginia Beach, VA (US);
International Blind Company, Chester, PA (US);
Abstract
Method and apparatus for forming ladders for venetian blind assemblies comprised of elongated spaced vertical cords and a plurality of longitudinally spaced transverse cross pieces extending between the cords. The apparatus includes a frame, a ladder guide mechanism at one end of the frame including means for spacing the cords apart. Adjacent the guide mechanism is a gathering block having an opening through which the cords engage in close side-by-side relation. Adjacent and downstream of the gathering block is stapling means for securing the vertical cords together. Further downstream of the stapling station is measuring means in the form of an elongated measuring stock or tape so that as the ladder material is advanced through the apparatus, the operator may position the front end at a selected point along the measuring tape and make a visual determination of the of the desired length of a given ladder assembly. The apparatus further includes a stop mechanism in the form of a pin operable between a retracted position permitting free movement of the ladder through the apparatus and an extended position preventing said movement by engagement with one of the cross pieces. The stop mechanism is actuated to an extended position when the desired length has been achieved to permit cutting of the cords adjacent the stapling station. At this point the stop mechanism is then moved to retracted position and the ladder stock advanced to form the next ladder.