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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7311649 | Sculpted perforated header for reclosable packages A machine direction method of manufacture of reclosable packages is disclosed wherein a semi-circular or similarly shaped perforated pattern is punched in the web in registration with the package side seals. Continuous lines of perforation are punched in the web par... | 12/25/2007 |
| 7179215 | Process and apparatus for producing packs with an outer wrapper as well as reel unit In the production of packs with outer wrappers which have a tear-open strip (12), the latter of continuous material strips (18), for the purpose of severing the tear-open strips (12), are provided with printing, markings (24), etc. Moreov... | 02/20/2007 |
| 6605026 | Tamper-evident slider packages with multiple tear points A reclosable zipper including a first closure profile, a second closure profile constructed and arranged to selectively mate with the first closure profile, and a web arrangement joining the first closure profile and the second closure profile. The web ar... | 08/12/2003 |
| 6541086 | Easily tearable packing films A first embodiment of the packing film is a four-layered laminate film in which the following films are laminated in that order: a first oriented plastic film formed as an outer surface layer and provided with a first coarse surface portion, an aluminum f... | 04/01/2003 |
| 6086524 | Reclosable storage bag and method for making the same A storage bag and a method and apparatus for forming such a storage bag. The storage bag contains a reclosure tie formed as an integral marginal portion of the bag beyond an edge of the bag. The marginal portion includes overlying layers of bag material t... | 07/11/2000 |
| 5934048 | Seal assembly for easy open pouch A pouch and a method and apparatus for forming an easy open pouch in a form-fill-seal process is disclosed. The apparatus includes a first bar; a means for cutting, housed within the first bar, the means for cutting including a main cutting blade having t... | 08/10/1999 |
| 5776300 | Device of regulating running position of unsealing tape for packing film The present invention relates to a device of regulating a running position of unsealing tape for packing film, in which in the normal operation unsealing tape runs on a linear normal running position disposed between projecting portions and by being guide... | 07/07/1998 |
| 5759145 | Tearability imparting apparatus An apparatus for imparting a tearable region to a pre-formed pouch. A lower block has a flat surface on which is provided a lower perforating member that corresponds to a corner of the unsealed pouch. The lower perforating member has been formed by deposi... | 06/02/1998 |
| 5730354 | Printed tear tape A wrapped package carries a transparent overwrap material and a tear tape attached to the overwrap material for effecting tearing of the overwrap material. The tear tape has a layer of adhesive on one side of the tape substrate for adhesion to the overwra... | 03/24/1998 |
| 5673534 | Reclosable storage bag A reclosable bag includes a detachable reclosure tie having a tail portion formed by a series of spaced elongated seals and a closed loop. Apparatus for forming the reclosure tie with a bag includes first and second sealing jaws with external and internal... | 10/07/1997 |
| 5658228 | Tamper evident container and related apparatus A tamper evident container assembly includes a container body having a bottom wall and peripheral side wall, the side wall terminating in an outwardly curled rim. A reusable lid includes a top wall portion and a depending skirt portion, the depending skir... | 08/19/1997 |
| 5551938 | Recloseable container with press-bonded collar A recloseable container comprises an outer carton and a collar disposed therein. The outer carton includes opposing top and bottom walls, opposing front and back walls, and opposing side walls. The collar is press bonded to one or more of the inner surfac... | 09/03/1996 |
| 5490827 | Tamper evident container and related apparatus A tamper evident container assembly includes a container body having a bottom wall and peripheral side wall, the side wall terminating in an outwardly curled rim. A reusable lid includes a top wall portion and a depending skirt portion, the depending skir... | 02/13/1996 |
| 5470419 | Easily tearable film and pouch made therefrom An easily tearable plastic film and a pouch made therefrom comprises a thin-wall part for easy tearing. The thin-wall part being made by incorporating strings in the plastic film when it is made by melt extrusion. A method for producing the film and pouch... | 11/28/1995 |
| 5430987 | Tooling to form tear-off strip on a dispenser pouch An enlarged dispensing pouch for holding viscous food product for dispensing from a specific hand held or similar type dispenser, is formed so as to include a tear strip which will accurately and consistently open a funnel-shaped, centrally disposed outle... | 07/11/1995 |
| 5413412 | Easy open bag A bag and a method and apparatus for forming an easy open bag wherein a said bag is formed of thermoplastic heat shrinkable film is disclosed. Specifically, an easy open thermoplastic heat shrinkable bag having a heat shrinkable thermoplastic tear strip p... | 05/09/1995 |
| 5318818 | Strip of material Strips of material for manufacture of packaging containers are sometimes provided with aids to opening in the form of pull tabs (3), which extend transversely across the strip of material (1) When the tab (3) is folded round one longitudinal side of the s... | 06/07/1994 |
| 5284002 | Apparatus and method for making a reclosable storage bag A storage bag and a method and apparatus for forming such a storage bag. The storage bag contains a reclosure tie formed as an integral marginal portion of the bag beyond an edge of the bag. The marginal portion includes overlying layers of bag material t... | 02/08/1994 |
| 5238306 | Method of producing a sealing system for a reclosable webbed-wall package, and system made A closure system for a film wall package includes profile strips having a reclosable seal of the interlocking type, flange elements and, adjacent the reclosable seal, an adhered strip of peelable material. The peelable material and the profile strip may b... | 08/24/1993 |
| 5203935 | Method of producing packaging material having a tear tape A teartape for packaging materials, and particularly such materials based on polyolefin films, includes a base film coated with a pressure sensitive adhesive composition. The teartape is affixed to the packaging material by the adhesive composition. This ... | 04/20/1993 |
| 5192262 | Container wrappers with integral tear tape, and methods and apparatus for making same An outer wrapper for a container which includes an integral tear tape. The tear tape is formed by cutting two sets of score lines extending partially through the thickness of the wrapper material. The tear tape can be patterned to conform to the parting l... | 03/09/1993 |
| 5041073 | Apparatus for cutting off and applying tear-off strips to a web of packaging material An apparatus for cutting tear-off strips from a strip of material having a width equal to the length of the tear-off strip and for applying the tear-off strip to a conveyed web of packaging material is disclosed. The apparatus has one movable and one stat... | 08/20/1991 |
| 5038547 | Method for producing an easily openable tightly sealed bag A process for producing a tightly sealed bag that can be easily opened by tearing at an edge thereof. According to the process a multiplicity of through cuts are formed along a line in a laminate film having at least one substrate layer and at least one h... | 08/13/1991 |
| 5030189 | Method of making envelope with tear line formed by ultrasonic energy Method for forming an envelope having a tear strip or a tear-off flap portion for aiding in opening the envelope, comprising the steps of providing an envelope blank formed of a material capable of being weakened by the application of ultrasonic frequenci... | 07/09/1991 |
| 4889523 | Tearable package of synthetic thermoplastic foil and device and method for producing the same A package includes an upper wall, a lower wall and two side folds provided with folds. A tearable flap is provided at a filling opening of the package. The flap is provided with two suspension openings spaced from each other. The packages are produced fro... | 12/26/1989 |
| 4861414 | Easy-open flexible pouch and apparatus and method for making same A pouch and a method and apparatus for forming an easy open pouch in a vertical form-fill-seal process wherein a pouch is formed from a sheet of thermoplastic film and a heat seal between pouches as they are filled serves as the top closure for the lower ... | 08/29/1989 |
| 4768411 | Easy-open bag and apparatus and method for making same A bag and a method and apparatus for forming an easy open bag in a vertical form-fill-seal process wherein a bag is formed from a sheet of thermoplastic film and a heat seal betwee bags as they are filled serves as the top closure for the lower bag and a ... | 09/06/1988 |
| 4725329 | Apparatus for manufacturing easy-to open synthetic resin bag An apparatus for manufacturing easy-to-open bags comprising a pair of feed rollers, at least one puncher disposed downstream of said feed rollers, upper and lower separating rollers disposed downstream of said puncher, tear string positioning member dispo... | 02/16/1988 |
| 4610651 | Method of and apparatus for manufacturing bags with tabs A pinch bottom open mouth ("PBOM") bag having a pinch bottom flap folded over upon and adhered to one wall of the bag, with a tab for tearing the flap open inserted at its inner end between the walls of the bag, folded to overlie the flap and the outside ... | 09/09/1986 |
| 4583964 | Method and apparatus for producing a cylindrical packing tube which is open at one end and closed at the other A method and an apparatus are indicated for the production of a cylindrical packing tube which is open at one end and closed at the other, is made from deformable tear-resistant packing material and is intended, in particular, for tampons used in female h... | 04/22/1986 |
| 4523919 | Process and apparatus for attaching small tear-open strips to packaging material or the like Small tear-open strips 10 are fed to a sheet 11 of packaging material in a timed sequence and applied to the sheet by reciprocating conveying members 22, 23 which only grip in one direction, so that the strip is pulled along in steps. As a result, a high ... | 06/18/1985 |
| 4498591 | Openable flexible packet A thin flexible pouch-packet is disclosed which has concave deformations in the side wall to enhance opening of the packet.... | 02/12/1985 |
| 4498274 | Device for supplying and for bringing together a web of packaging material and a tear strip web A tear strip is caused to move synchronously with a moving web of packaging material and the web and strip are brought into contact for subsequent joining to define a packaging material with integral tear strip. Contact between the packaging material and ... | 02/12/1985 |
| 4480752 | Pinch closure bags with opening feature and method of manufacturing them A paper bag having a pinch closure provided with a tab extending from within the bag between the portions of the walls of the bag in the pinch closure and projecting out of the pinch closure, the projecting portion of the tab being adapted to be grasped a... | 11/06/1984 |
| 4464156 | Method of manufacturing parallelepipedic packing container provided with an opening arrangement A parallelepipedic packing container of the type which is provided with a sealing fin which extends over the upper end wall of the packing container as well as over triangular, double-walled lugs adjoining this end wall. The sealing fin comprises a narrow... | 08/07/1984 |
| 4411644 | Method and apparatus for forming reclosable packages A payout coil of tape for forming substantially instantly openable and reclosable package closures over the flattened mouths of packages in mechanized packaging operations. The tape is a unified structure having a layer of solid non-tacky thermoplastic po... | 10/25/1983 |
| 4394206 | Apparatus and method for applying an elongated tab to a moving substrate An applicator (10) for applying a string or tape (72) coated with a thermoplastic adhesive to a moving substrate (14) is the subject of this patent application. The applicator (10) includes a first roll (28) about which the string (72) is fed. Thereafter,... | 07/19/1983 |
| 4386925 | Apparatus for producing a tear line in the multi-layered foil of a cigarette pack A multi-layer bonded foil 10 which forms the inner wrapper of a cigarette pack is provided with a tear line 14 to facilitate opening a tear flap 15. The tear line is formed by a fixed lower tool 25 having a raised rib 28 flanked by grooves 29, 30 and a re... | 06/07/1983 |
| 4364478 | Manufacture of easily openable foil bag In a foil bag composed of a foil piece and a tearing strip means, the bag having a flattened head portion, a longitudinal seam extending across the head portion, and a transverse seam transverse to, and crossing, the longitudinal seam in the head portion ... | 12/21/1982 |
| 4261253 | Method of making openable flexible packet A pouch-packet having walls with V-shaped or Y-shaped separation-enhancing deformations formed therein, and the method and apparatus for making the same are disclosed herein.... | 04/14/1981 |
