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US 4,313,630 AGranted
Method and apparatus for knotting automatically mouths of flexible packagings
OwnerAngel L. Barrosoinventor
Life of this patent
Estimating the term…
Abstract
A method and apparatus for knotting flexible packages especially suited to knotting filled sausage casings, in which a loop of string is positioned adjacent to the area of the package to be knotted, and one end of the loop is drawn around the package and through the loop itself, and then pulled tightly, thus knotting the string around the package.
Claims14
A method of automatically knotting flexible packages comprising:
- entering a string on a support in the form of a plurality of adjacent closed loops, each with its ends crossed;
- placing the area of the package to be knotted across one of the loops;
- tightly grasping said one loop at the loop segment directly across from and farthest from the crossed ends of the one loop;
- moving said loop segment in an arc about said package so that the path of the said segment encircles said area to be knotted of the package;
- inserting said loop segment through the one loop itself;
- pulling said loop segment until the string becomes tightly knotted around the rear to be knotted;
- and
- cutting said ends of said loop.
5 more elements
An apparatus for automatically knotting flexible packages comprising:
- a frame;
- means in said frame for storing a load roll, said load roll consisting of a laminar sheet having a string in a pattern of adjacent closed loops affixed thereto;
- dragging means attached to said frame for unwinding said load roll from said storing means;
- curved positioning means attached to said frame for positioning said load roll in an arched position as it is unwound from said storing means by said dragging means;
- nipping means attached to said frame for securing the ends of one of said adjacent closed loops affixed to the load roll;
- transference means attached to said frame having upper jaw means for hooking the loop segment of said closed loop farthest from said ends secured in said nipping means and separating said loop segment from said laminar sheet and describing an arc about the package and lower jaw means for receiving said segment from said upper jaw and pulling said loop segment through the loop;
- lower locking means attached to said frame for guiding said transference means and forcing said upper jaw means against said lower jaw means, thus effecting a transfer of the loop segment;
- means attached to said frame for cutting said ends of said loop;
- pulsating drive means attached to said frame for driving said dragging means, nipping means, transference means and cutting means;
- means in said frame for storing said load roll already stripped of string by said transference means.
7 more elements
Dependencies are inferred from the claim text.