Closure strap for flexible containers and apparatus and method for tensionsing thereof
US5212928A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1990 |
| Grant date | May 25, 1993 |
| Priority date | — |
| Expiry date | Nov 30, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2563/108
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method for drawing a bundling strap taut about the neck of a flexible container such as a bank bag, said bundling strap comprised of an elongated body portion having a plurality of serrations disposed along side edges thereof adapted to mate in locking contact with corresponding teeth members projecting into an aperture in a head-end portion connected to said strap body, the method utilizing an automatic bundling strap tensioning apparatus characterized by a reversible motor means connected to a reciprocating means for gripping moveable between an extended position and a retracted position, comprised of the steps of: PA0 looping said bundling strap about the open neck of said flexible container; PA0 inserting the tail end of the strap through the aperture defined by the head-end portion of the strap; PA0 pulling said tail-end of said strap completely through said aperture until at least the first set of serrations of the strap body are engaged by said teeth members projecting upwardly into the interior of the aperture, thereby locking the strap body against reverse movement relative to said head-end portion; PA0 inserting the tail-end portion of the strap in said means for grippi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.