William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 4514003 | Mounting of automobile trim strips Securing a decorative and protective trim strip or molding along an exposed edge of an automotive vehicle body as, for example, an outline molding around a wheel well opening. A resilient strip having the desired decorative configuration and appearance is... | 04/30/1985 |
| 4452351 | Sheet handling apparatus An apparatus for precisely locating a windshield at the take-off end of a conveyor for subsequent removal by a transfer apparatus. The locating apparatus includes a carriage having a lift device for raising the windshield off the conveyor up to a predeter... | 06/05/1984 |
| 4421225 | Material handling apparatus An apparatus for arresting and locating a glass shaping mold in a fixed position on a continuous conveyor in vertical registry with a vertically reciprocal head for loading and unloading glass sheets onto and from the mold. The locating apparatus comprise... | 12/20/1983 |
| 4413820 | Sheet handling apparatus and method An apparatus for positioning an interleave on a finished sheet product prior to transferring and depositing the latter in a stacked relation. The apparatus includes a stripper means for removing the lowermost interleave from a stack of such interleaves an... | 11/08/1983 |
| 4400841 | Apparatus and method for handling sheet material A sheet handling apparatus and method for transferring horizontally oriented sheet articles from one location to another in an automated production line facility. The apparatus includes a vertically reciprocal elevator mounted on a horizontally reciprocal... | 08/30/1983 |
| 4396410 | Method of and apparatus for press bending glass sheets A method of and apparatus for press bending glass sheets into nonsymmetrical shapes including opposed press rings having complementary nonsymmetrical shaping surfaces, one of said press rings having a displaceable segment forming a part of the shaping rai... | 08/02/1983 |
| 4395917 | Apparatus for testing glass Apparatus for the destructive testing of glass sheets. The sheets to be tested are subjected to a differential pressure condition by establishing a vacuum on one side thereof and lowering the pressure on such side until the glass deflects to its breaking ... | 08/02/1983 |
| 4394122 | Furnace regenerator with improved flow distribution A continuous regenerative tank-type glass melting furnace having a plurality of burner ports along each side in communication with a longitudinally extending plenum. Beneath and extending throughout the length of each plenum is a checkerbrick structure su... | 07/19/1983 |
| 4391581 | Fluid cooled burner structure An improved burner for injecting fuel into the passages for heated combustion air connecting the checkers with the ports of a regenerative-type glass melting furnace. The ports are positioned somewhat above the level of the molten glass contained in the m... | 07/05/1983 |
| 4368836 | Sheet feeding apparatus Apparatus including a pair of opposed conveyor belts for feeding a plurality of superimposed continuous sheets of refrigerated, thermoplastic material. The active runs of the conveyor belts are guided over platens movable toward and away from each other i... | 01/18/1983 |
| 4368822 | Material handling method and apparatus A method of and apparatus for handling sheet material including a peg conveyor for supporting and advancing a plurality of spaced, generally upright sheet articles in combination with a rack having spaced pegs and carried on a mobile lift apparatus for st... | 01/18/1983 |
| 4352221 | Apparatus for washing curved sheets An apparatus for washing curved glass sheets comprising a cluster of brushes including a pair of upper brushes and a lower brush mounted above and below, respectively, the horizontal path of movement of the glass sheets. Each brush is formed into an arcua... | 10/05/1982 |
| 4347927 | Sheet aligning apparatus An appartus for aligning an advancing plastic-glass sandwich on a conveyor to accurately direct the same in a desired orientation for proper entry into the restricted receiving zone of a pressing apparatus. The aligning apparatus includes a pair of pivota... | 09/07/1982 |
| 4345510 | Louver assembly An apparatus for directing and regulating the flow of fluid from a conduit system. The apparatus includes a tubular housing for encasing a deflector body, the deflector body containing a cartridge having a plurality of spaced-apart, parallel, movable vane... | 08/24/1982 |
| 4339261 | Drive system for glass furnace stirrers A continuous tank-type glass melting furnace includes a melting zone into which raw materials are charged and reduced to a molten state. The molten glass then flows through a relatively narrow waist or conditioning area to refining and conditioning zones,... | 07/13/1982 |
| 4323785 | Method of and apparatus for observing sheet surfaces for traces of fluorescent materials thereon An inspection system for ascertaining the surface of a glass sheet that contacted the molten metal bath during production of the glass by the float process and thus has traces of fluorescent metal or metal oxides thereon. The system employs a device for s... | 04/06/1982 |
| 4320826 | Material handling method and apparatus A method of and apparatus for handling sheet material including a peg conveyor for supporting and advancing a plurality of spaced, generally upright sheet articles in combination with a rack having spaced pegs and carried on a mobile lift apparatus for st... | 03/23/1982 |
| 4319999 | Granular material trap A water demineralization system including tanks for containing granular materials adapted to remove the minerals from the water. A trap is tapped into the outlet pipe of each tank for preventing the loss or escape of the granular material in the event of ... | 03/16/1982 |
| 4318562 | Grasping apparatus for handling heated articles Apparatus for removing and installing hot refractory bricks, particularly in the checkerwork structures of the regenerators employed in glass melting furnaces, the apparatus having a manually operable, selectively actuatable claw mechanism mounted on one ... | 03/09/1982 |
| 4317669 | Glass melting furnace having a submerged weir A continuous tank-type glass melting furnace containing a bath of molten glass and having a waist section of reduced width whereat a submerged weir extends across the path of the molten glass bath flowing therethrough. The weir is located adjacent the flo... | 03/02/1982 |
| 4315711 | Tilting support packing apparatus An apparatus having a horizontally disposed manually rockable frame for supporting and tilting a shipping container from its normal upright transporting attitude through an angle of less than 90° to an attitude included from the horizontal for packing gl... | 02/16/1982 |
| 4312661 | Apparatus for bending glass sheets An articulated press member having pivotal end sections for imparting complex shapes to glass sheets. The end sections are pivoted in unison by a single fluid cylinder operatively connected to a rack and pinion assembly in turn connected to both end secti... | 01/26/1982 |
| 4310116 | Method for producing solar collector panels A method of and apparatus for fabricating a solar collector panel including providing a thermal conductive, heat absorbing plate having a plurality of grooves therein, feeding discrete lengths of solder strips having transverse curvatures into said groove... | 01/12/1982 |
| 4305746 | Method of and apparatus for bending glass sheets A method of and apparatus for press bending sheets into complex shapes including at least one press member of outline or ring-type construction having a plurality of shaping pads mounted within the outline of the shaping ring in combination with configura... | 12/15/1981 |
| 4302503 | Architectural spandrel A glass spandrel coated on the inwardly glazed glass surface with a transparent heat reflective film and a black, opaque coating firmly adhered to and covering the exposed surface of the film. The opaque coating includes a light absorbing component to lim... | 11/24/1981 |
| 4298372 | Combustion air flow control for regenerators A method of and apparatus for directing and regulating the flow of combustion air to opposite ends of the regenerators of a regenerative tank-type glass melting furnace so as to minimize localized overheating and more uniformly heat the checkerworks of th... | 11/03/1981 |
| 4298281 | Laser system for aligning conveyor rolls An alignment system having a light source for projecting a reference light beam extending longitudinally with and parallel to the centerline of a roller conveyor for establishing a common reference plane containing the axes of a plurality of transversely ... | 11/03/1981 |
| 4296662 | Method of and apparatus for cutting sheets of glass A method of and apparatus for scoring block size glass sheets into shapes for further fabricating into automotive windshields, side lights and the like. The apparatus includes a continuously operating conveyor for advancing the block size glass sheets to ... | 10/27/1981 |
| 4295038 | Marking and counting probe assembly An apparatus for serially counting the fragments of a fractured tempered glass article including a probe assembly for touching and producing an electrical signal each time a fragment is touched, the probe assembly also marking each touched fragment. The a... | 10/13/1981 |
| 4293264 | Pivotal shipping rack supporting apparatus An apparatus having a flat pivotal member for carrying and rotating a shipping container from its normal upright transporting attitude through an angle of less than 90° to an attitude inclined from the horizontal for packing glass sheets therein. The gla... | 10/06/1981 |
| 4290413 | Solar energy collector A flexible solar energy collector of unitary, one-piece, self-supporting construction provided with substantially true-round manifolds and secondary manifolds interposed between the primary manifolds and a multiplicity of fluid flow passages extending tra... | 09/22/1981 |
| 4289295 | Self-sealing connector A valve device having a tubular body adapted to be connected in a fluid conduit system. A self-closing valve member is pivotally mounted in the passage of the tubular body, the pivotal valve member being in a position closing the passage when the device i... | 09/15/1981 |
| 4287990 | Glass sheet shipping packages A composite package for shipping and storing a stack of individual sheets of glass or the like and particularly curved automotive glass articles. The package includes a rigid outer male member and a removable female closure member, each fabricated from a ... | 09/08/1981 |
| 4284677 | Glazing unit An electrically heated laminated aircraft glazing including at least two sheets of glass and an interposed non-brittle thermoplastic interlayer. A bus bar and an electrically conducting film are located on the inwardly disposed surface of one of the sheet... | 08/18/1981 |
| 4269173 | System for mounting solar collector panels A system including at least a pair of mounting spars supported in a spaced-apart parallel relationship by modular sections constructed of standardized hardware for mounting one or more solar collector panels in predetermined positions on stationary surfac... | 05/26/1981 |
| 4268545 | Method of and apparatus for printing a pattern on a substrate A screen support in the form of a segmental collar for use in a screen stenciling operation. The collar segments are movable into engagement with at least the transverse marginal edges of a glass substrate for accurately locating the same relative to an o... | 05/19/1981 |
| 4266383 | Solar energy collector A resilient sealing member for use about the marginal edge of a glazing panel mounted in a solar energy collector. The sealing member is cup-shaped for receiving the marginal edge portion of the panel and is formed with a sealing lip bearing against the o... | 05/12/1981 |
| 4267140 | Method and apparatus for shaping thermoplastic sheets A method of and apparatus for stretching and shaping generally rectangular, refrigerated, thermoplastic sheets for ultimate use as interlayers in curved laminated glass units. The apparatus includes a frame assembly having spaced apart clamping assemblies... | 05/12/1981 |
| 4255055 | Surface inspection system for detecting flatness of planar sheet materials An inspection system for detecting the flatness of planar glass sheets or other materials having reflective surfaces by observing areas of preselected size on the surfaces. The system includes a collimated beam of light directed toward the surface of the ... | 03/10/1981 |
| 4255180 | Support mechanism for heat exchangers in float glass apparatus Support mechanism is affixed to the external structure of a float glass producing facility for mounting heat exchangers above the ribbon of glass as it is formed on the bath of molten metal. The support mechanism includes spaced pairs of rollers between w... | 03/10/1981 |