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...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7404789 | Machine and method for making filter bags for infusion products A machine (1) for making filter bags (4) of tetrahedral shape for infusion products comprises a revolving conveyor drum (15) driven by a first drive shaft (16) to feed a web (5) of filter paper along a path (P) on which there are p... | 07/29/2008 |
| 7204794 | Machine and method for making filter bags for infusion products A machine (1) for making filter bags (4) of tetrahedral shape for infusion products comprises a revolving conveyor drum (15) driven by a first drive shaft (16) to feed a web (5) of filter paper along a path (P) on which there are p... | 04/17/2007 |
| 6932754 | Method for manufacturing angulated bottom paper bag with handle in rotary type bag manufacturing machine The invention concerns a rotary type bag manufacturing machine which feeds continuously material paper (R) to form angulated bottom bags (B) with handles (T) in which a top edge (S2) with the handles (T) pasted can be folded toward an inside in the manufactur... | 08/23/2005 |
| 6899663 | Method for producing loop handle shopping bags For the production of loop handle shopping bags based on semi-tube sheeting consisting of thermoplastic plastic, an edge strip of the semi-tube sheeting is folded onto itself and reinforcement warps, consisting of a weld-friendly thermoplastic plastic that provides ... | 05/31/2005 |
| 5858166 | Machine for attaching handles to a gift box The present invention is a machine for use in attaching first and second handles to a gift box. Each of the first and second handles having first and second end portions and an upper portion. In one embodiment, the machine comprises a base member and firs... | 01/12/1999 |
| 5816993 | Apparatus and method for attaching carrying handles to bags An apparatus and a method for attaching at least one carrying handle to a bag, such as a shopping bag, grocery bag, or the like. Individual handles are severed from a continuous web of handle material. Bags are conveyed at a predetermined velocity, with a... | 10/06/1998 |
| 5800326 | Process for manufacturing a handle for a bag made of paper or another material The process for manufacturing an integrally-formed handle for a bag includes the steps of turning an edge of a sheet of bag stock on itself a predetermined number of times to form a multiple-thickness handle on the sheet stock, while leaving an adjacent p... | 09/01/1998 |
| 5382215 | Process for producing paper bags with handles A process for producing paper bags with handles glued to the insides of the facing opening edges, includes perforating a paper web with transverse perforation lines spaced at distances corresponding to the section lengths necessary to produce the bags. At... | 01/17/1995 |
| 5350350 | Apparatus for forming and applying handles to bags An apparatus for carrying rope handles for paper bags to a paper bag forming station is disclosed. The rope handles are supplied to the bags at the entrance of the forming station before forming the bags. The apparatus includes a first and a second plural... | 09/27/1994 |
| 5288284 | Method for making bags and an apparatus for carrying out this method The invention relates to a method for making bags preferably provided with side folds or other flat workpieces, which have a slip extending beyond their boundary. In accordance with the invention partly prefabricated bags are laterally supplied to a conve... | 02/22/1994 |
| 4510620 | Handle for carrier bag and method of making handled carrier bag A handle for a carrier bag comprising an elongated band of flexible material having a high tensile strength, said band having a pair of arm portions which extend to opposite ends of a bridge portion which extends therebetween, a mounting panel having a mo... | 04/09/1985 |
| 4487597 | Method employing a splayed roll folder for adhesive application An apparatus and method for forming one or more pleats in a continuously advancing sheet of indeterminate length are provided. The apparatus includes a first roll, over which the sheet passes while a streak of adhesive is laid upon a selected strip of the... | 12/11/1984 |
| 4292033 | Method of providing net bags with wicketing flaps A method of providing net bags with wicketing flaps at their mouth ends. A series of net bags are fed forward in a path with the bags extending transversely of the path and spaced longitudinally with their mouth ends aligned. As the bags are fed forward, ... | 09/29/1981 |
| 4211483 | Copy production machines having job separation and collation capabilities A copy production machine selectively interleaves copy separation sheets between successive copy jobs, subjobs or job portions. The copy separation sheets can be from the same copy sheet supply source or from an alternate source. The supplied copy separat... | 07/08/1980 |
| 4018142 | Box-bag with permanently secured handle This specification describes an improved method for making a container that has a square bag construction at its lower end and an upper end constructed as a folding box. The method produces such a container with a flexible handle that is permanently attac... | 04/19/1977 |
