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U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 6425848 | Cutting or sealing plastics material A low thermal inertia die (10) must be heated to a specific set temperature to cut/seal plastics material. As heat energy is dissipated during cutting/sealing it is replaced by an equivalent amount of thermal energy from an electrical heating element (26)... | 07/30/2002 |
| 5865941 | Device for sealing plastics films A device for sealing plastics films, particularly in batch packages (10) comprises a sealing jaw (32) and a sealing surface (33) thereon. In order to avoid the adhesion of residues of the film on the sealing jaw (32) or its sealing surface (34) during sea... | 02/02/1999 |
| 5268058 | Crytoplate seal bar A transverse seal bar produces triangular air pockets between straight, parallel transverse seals. providing stress supports as well as rigidity to the seal The seal is fail-proof and is applied to plastic or other materials laminated to plastic such as; ... | 12/07/1993 |
| 5088973 | Method and apparatus for folding printed/coated sheet material A method and apparatus for use with folding machines of the type having a score roll for scoring sheet material which has been coated and/or printed with ink and the like. The method includes, and the apparatus provides for, heating the score roll to a su... | 02/18/1992 |
| 5019028 | Method and apparatus for perforating and/or severing tubular bodies Tublar workpieces are formed with perforations of desired size and/or shape by repeatedly piercing selected portions of the workpieces by needles, pins or analogous piercing tools. The tools can be stationary while the workpieces roll therealong, or the w... | 05/28/1991 |
| 5015223 | Hotseal jaws and cutoff knife assembly for processing thermoplastic film bag making material Thermoplastic film bag making material is processed between a hotseal jaw and cutoff knife assembly. The apparatus has complementary first and second jaws between which the material is received for sealing bag side edge areas of the bag making material. T... | 05/14/1991 |
| 4999971 | Packaging machine A packaging machine for filling a fluid food or like contents into containers fed to a conveyor and each coated with a thermoplastic synthetic resin over the outer surface thereof and thereafter closing the containers while the containers are being transp... | 03/19/1991 |
| 4994137 | Bag making machine sealer slitter apparatus A bag making machine sealer slitter apparatus for transversely sealing together and severing two layers of a tubular web of thermoplastic resin film, thereby forming a bag wherein the sealer slitter apparatus essentially comprising a sealing mans having t... | 02/19/1991 |
| 4986804 | Method for forming angular seals in side-gussetted bags Seals are formed in bags made from a flexible web. The sealing element is a heated wire. The thermal conductivity of the wire is selected in reference to the melt and tack characteristics of the film being sealed such that when the film is placed in heat-... | 01/22/1991 |
| 4917664 | Fluted roll for a corrugated board manufacturing machine A roll (16) for a corrugated board manufacturing machine (10) comprises a shell (32) defining an inner suction chamber (56) permanently connected to a source of low pressure. A series of radial suction apertures (60) open onto the peripheral surface (58) ... | 04/17/1990 |
| 4861328 | Mandrel for forming a bottom in a packaging container A mandrel used in a packaging machine being in a tubular shape and provided with a cooling chamber at one end so as to cool a plain plate which is positioned at the top of the mandrel and contacts the heated, infolded and compressed bottom of a tubular pa... | 08/29/1989 |
| 4860621 | Heat knife holding device for heat cutting plastic films According to the invention, a heat knife 1 is spaced from and disposed parallel to an arm 8 for holding the heat knife 1. A plurality of spacers 11 and a plurality of pull bolts 10 are installed between the heat knife 1 and the arm 8. The pull bolts 10 is... | 08/29/1989 |
| 4834700 | Method of and apparatus for forming filter element A ring-shaped corrugated filter element blank having radially alternate peak and valley folds is placed on a first mold having as many first concentric projections as the number of the peak folds of the ring-shaped blank and as many first concentric groov... | 05/30/1989 |
| 4834830 | Oscillating sealing wire assembly for wrapping machines An oscillating sealing wire for high speed sealing of thermoplastic film. The sealing wire curved in the shape of a bow rocks back and forth across the moving surface of a thermoplastic film so the wire continuously presents a hot surface to the film. The... | 05/30/1989 |
| 4808150 | Oven-heated hot wheel sealing apparatus An oven-heated hot wheel sealing unit for heat sealing thermoplastic film. The unit includes an oven having a heater for heating the air therein. A plurality of rotors are rotatably supported within the oven. Each of the rotors includes a wheel having a r... | 02/28/1989 |
| 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 |
| 4659323 | Method for making axial-flow filters and apparatus therefor A method and apparatus for making axial-flow filters wherein a sectorial-shaped sheet of filter material having corrugations therein parallel to the curved ends thereof is made from a flat sheet of filter material in the first step, and thereafter the cor... | 04/21/1987 |
| 4642086 | Apparatus for forming flexible fold lines in a thermoplastic sheet There is provided an improved apparatus for forming foldable box blanks from a thermoplastic sheet by forming flexible fold lines in the thermoplastic sheet, with the apparatus including a plurality of scoring tools and a flat plate having a plurality of ... | 02/10/1987 |
| 4610653 | Heat sealing and cutting means A hot wire has one end mounted on a pivotally supported arm which is biased to keep the wire straight and taut. The end of the wire is bent to an L-shape and is rigidly attached to the arm. Between the bend and the point of attachment, the wire is formed ... | 09/09/1986 |
| 4582555 | Heatseal die This invention is an improved heatseal die that forms superior airtight seals. The die has opposed die faces, with one die face having longitudinal lands and the other die face having grooves for receiving the lands. The lands are truncated and the depth ... | 04/15/1986 |
| 4573958 | Cuttling machine for continuous input of web Flat tubular web is supplied from a textile finishing machine and cooled down by jets in a cooling unit to the room temperature or thereunder and dried in the process. The web is then passed by a laying unit onto a table in the form of a folded stack. The... | 03/04/1986 |
| 4449962 | Cutting/sealing device for plastic bag making machines A plastic bag making machine of the type consisting of opposing vertically aligned upper and lower machine sections which move in unison toward and away from each other to cut and seal plastic film being conveyed between the two machine sections on a hori... | 05/22/1984 |
| 4447218 | Method and apparatus for the automatic folding of floppy disc storage envelopes Presented is a method and apparatus for the substantial automatic folding of flat pre-cut blanks of sheet material to form storage envelopes for floppy or rigid disc storage devices. The machine includes a pedestal formed in part by an electromagnet assoc... | 05/08/1984 |
| 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 |
| 4338082 | Positioning mechanism for support arm of heat sealing and cooling devices This relates to a drive system for selectively positioning a heat sealer and a cooler relative to mandrels supporting bags or pouches, which mandrels are carried by a turret and indexed thereby. A simple oscillating shaft driven by a cam oscillates a doub... | 07/06/1982 |
| 4329197 | Plastic bag sealer A portable, flame powered sealer including a sleeve-like body portion receptive to a standard, throw-away type cigarette lighter, a pair of upwardly extending brackets, a heating element held over the flame of the lighter by the brackets, and a compressio... | 05/11/1982 |
| 4181070 | Method of making variable pleat paper A variable pleat filter paper pleater with rotary scoring means is disclosed. A large roll of resin impregnated paper is passed through rotary scoring means to score the paper to facilitate folding (pleating). The paper is drawn past or through the rotary... | 01/01/1980 |
| 4079570 | Quick-change heatseal die for forming easy-open prackages This invention is a heatseal die which is intended to replace one die of a pair of heatseal dies normally employed in a packaging machine. The die of the invention differs from the die normally employed in that the lower portion of the die face, which for... | 03/21/1978 |
| 4011800 | Bottom seal horn and mandrel Vibration sealing apparatus including a vibrating horn and a stationary mandrel having rectangular work faces for opposing each other to seal a rectangular end closure of a thermoplastic coated paperboard carton. The work face of the vibrating horn define... | 03/15/1977 |
