Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 7011084 | Impetus-modifying thrust-wheels for ball-pitching machines The notion of an assymetrically configured thruster-wheel for automatic-feed ball-pitching batter/training-machines having a pair of laterally apposed axially-driven thruster-wheels; —wherein one or both thruster-wheels features a resilient circumferential-facing ... | 03/14/2006 |
| 6295844 | Apparatus and method for drawing glass fibers An apparatus and method for drawing low loss fluoride glass fibers from a preform. A stream of reactive gas is passed around the preform and fiber so as to prevent moisture and oxygen contamination of the fiber while the fiber is being drawn. The apparatu... | 10/02/2001 |
| 6199406 | Small diameter gathering shoe for glass fiber forming The present invention provides an apparatus for forming fiber strands comprising a fiber forming device, a gathering shoe device and a winder device, the improvement comprising a gathering shoe device which includes at least one gathering shoe having an a... | 03/13/2001 |
| 5961685 | Apparatus for applying a generally uniform sizing composition to glass fibers A sizing applicator is provided for applying a coating of sizing composition to glass fibers. The sizing applicator includes a housing and a roll applicator which is rotatably coupled to the housing. The housing has a supply port adapted to receive sizing... | 10/05/1999 |
| 5935289 | Apparatus for automatic fiber manufacture Apparatus and methods of using the apparatus to automate a labor intensive portion of the process of making continuous fiber products, like chopped glass fiber. In this process many fiberizers are used, each fiberizer forming as many as several thousand f... | 08/10/1999 |
| 5914080 | Method and apparatus for the in-line production and conversion of composite strand material into a composite product A method and apparatus is provided for the in-line production of composite strand material and the conversion of at least a portion of the strand material into a composite product. The apparatus (10) includes a combining station (48) where glass fibers (1... | 06/22/1999 |
| 5639291 | Method of and apparatus for forming composite and other fibers In a method of and an apparatus for forming composite and other fibers, individual filaments from two or more sets of continuous primary filaments of two or more heat-softenable fiberizable materials are brought together lengthwise to form pairs of contin... | 06/17/1997 |
| 5181947 | Method for manufacturing a glass fiber A method for manufacturing a glass fiber having a polygonal cross section is provided. According to the method, a glass fiber having an orbicular cross section is manufactured by drawing molten glass supplied into a crucible heated at higher temperatures ... | 01/26/1993 |
| 5051122 | Method and apparatus for manufacturing continuous fiber glass strand reinforcing mat The subject matter of this invention relates to a method and apparpatus for making mats of continuous glass fiber strands in which a heated calendering roll and continuous belt are used to compact the mat, expel excess noisture, melt, and/or cure resin pr... | 09/24/1991 |
| 4961769 | Mat pattern control system and method A method and means for superimposing a secondary, higher frequency, lower amplitude oscillation of the angle of the trajectory of a glass fiber relative to a forming surface upon a primary, lower frequency, higher amplitude oscillation of the release mech... | 10/09/1990 |
| 4955999 | Stationary strand deflector for continuous strand manufacture A strand deflector used in the manufacture of continuous strands is shown and described. The deflector comprises a rigid surface which stretches across the width of the mat making machine and which is interposed between the strand feeders located above it... | 09/11/1990 |
| 4948408 | Strand deflector for a wide band mat A strand deflector widens the band of fibers from a continuous strand mat pull wheel. The strand deflector defines a plate having a surface with discontinuities such as a pattern of transverse parallel grooves or oblique intersecting grooves. The plate is... | 08/14/1990 |
| 4931075 | High current multiterminal bushing controller An improved bushing controller is shown which utilizes an auxiliary transformer in each of the variable impedance circuits in the controller and the bushing tha the controller is connected to increase the current capability of the controller by a signific... | 06/05/1990 |
| 4927445 | Apparatus for producing coated single twist glass yarns A process for producing coated, single twist glass yarns which comprises drawing a plurality of fibers formed from fibers of molten glass, applying to the fibers a sizing comprising a thermoplastic, thermosetting or photosetting composition, gathering the... | 05/22/1990 |
| 4923495 | Pull-roll assembly latching mechanism A latch mechanism adapted to lock a movable pull roll support to a fixed pull roll support in a mineral fiber attenuation apparatus. A latch arm is pivotally attached intermediate its length to the movable support and is spring biased into locking engagem... | 05/08/1990 |
| 4921517 | Method and apparatus for directing glass fiber strands for fabricating continuous strand, nonwoven mat Glass fibers are projected along an oscillating trajectory onto a travelling conveyer to form a glass fiber mat. The trajectory is made to oscillate by stripping glass fibers from a pulling wheel by means of a stripping edge, such as a tight wire, which i... | 05/01/1990 |
| 4824456 | Process and mechanism for the production of glass fiber products for example fleece, mats, yarns and rovings A process and apparatus for the production of glass fiber is disclosed. The process and apparatus are directed to collecting filaments being drawn from streams of liquid glass into a plurality of loosely bound strands of filaments which additionally are n... | 04/25/1989 |
| 4793840 | Optical fibre manufacture Optical fibre (4) is drawn from a preform (1) by a capstan (5), and a control circuit (22) drives the capstan and the preform at respective predetermined rates during ramp-up. The capstan drive rate is modified (controller 31) in response to deviations fr... | 12/27/1988 |
| 4737180 | Process and mechanism for the production of glass fiber products for example fleeces, mats, yarns and rovings A process and apparatus for the production of glass fiber is disclosed. The process and apparatus are directed to collecting filaments being drawn from streams of liquid glass into a plurality of loosely bound strands of filaments which additionally are n... | 04/12/1988 |
| 4615717 | Method and apparatus for making glass fiber oriented continuous strand mat An oriented continuous strand mat of glass fiber filaments is formed by interleaved layers of generally circular or random loops and elongated elliptical loops having their longitudinal axes positioned in the direction of travel of an endless conveyor upo... | 10/07/1986 |
| 4552576 | Method of fabricating optical glass base material and apparatus for fabricating the same A method of fabricating an optical glass base material by injecting and depositing fine glass particles produced by chemically reacting glass stock which comprises means for growing the fine glass particles in a depositing direction to form porous rod-sha... | 11/12/1985 |
| 4504300 | Device for manufacturing an object with chiralic structure from a source of formable material A device is provided for manufacturing an object having a chiralic structure. It comprises, just after the source of formable material, means for twisting the object during drawing thereof followed by coating means and fast-cooling means which allow a par... | 03/12/1985 |
| 4498917 | Method and apparatus for laser sizing of optical fibers A system for machining and sizing optical fibers is described herein. The system uses a laser beam to machine oversized regions of a buffer material surrounding an optical fiber to create a coated optical fiber having a substantially uniform maximum outer... | 02/12/1985 |
| 4496384 | Method and apparatus for producing a continuous glass filament mat A method and apparatus for producing a mat of continuous glass filaments at increased throughput while maintaining desirable tensile strength characteristics by means of a fluidic distribution system employing diagonally opposed Coanda effect surfaces.... | 01/29/1985 |
| 4496385 | Apparatus for producing a continuous glass filament mat A method and apparatus for producing a mat of continuous glass filaments at increased throughput while maintaining desirable tensile strength characteristics by means of an oscillatable, fluidic distribution system.... | 01/29/1985 |
| 4478625 | Apparatus for producing and collecting glass fibers Apparatus for producing and collecting continuous glass filaments is provided comprising: feeder means for supplying a plurality of streams of molten glass to be drawn into filaments; means for applying a liquid to said filaments; a rotatable member adapt... | 10/23/1984 |
| 4440557 | Method and apparatus for forming and collecting continuous glass filaments The present invention encompasses a system for at least partially drying or curing wet glass strand as it is being wound into a package wherein streams of heated gas, such as air, are directed into contact with the outer layer of strand being collected on... | 04/03/1984 |
| 4401452 | Method of and apparatus for controlling the breakage of glass fibers A method of and apparatus for controlling the breakage of glass fibers comprising: feeding a supply of molten glass through an orificed wall to form glass streams; attenuating the glass streams to form a plurality of glass fibers; gathering the glass fibe... | 08/30/1983 |
| 4389024 | Method and apparatus for packaging strands Method and apparatus for attenuating and collecting glass filaments are provided comprising a rotatable collet adapted to wind said strands thereon; a traversing means adapted to move the strands along the length of said collet, said traversing means havi... | 06/21/1983 |
| 4345927 | Apparatus and process for use preparing a continuous strand mat An apparatus and process is provided for more random distribution of a bundle of strands into a continuous strand mat. The apparatus has a feeder for reciprocating, traversing deposition of strands onto a conveyor, where the feeder is positioned above the... | 08/24/1982 |
| 4340406 | Pressurized gas accelerators for reciprocating device A reciprocating traversing apparatus discharges material onto, inspects marks, or cleans a device that it is traversing is provided that has reduced requirements for a driving motor, and has smoother traversing motion. A traversing mechanism has a driving... | 07/20/1982 |
| 4222758 | Apparatus for processing filaments Apparatus for producing continuous glass filaments is provided to facilitate the start-up or restart of a system wherein said filaments are attenuated by means of a rotatable member in contact with said filaments as a plurality of spaced apart bundles hav... | 09/16/1980 |
| 4208000 | Apparatus for advancing strand material An apparatus is disclosed for the attenuation or advancing of strand material, such as glass strands. The apparatus includes a single belt and a plurality of wheels around which the belt is driven and guided. The strand is attenuated as it passes between ... | 06/17/1980 |
| 4202679 | Process and apparatus for the continuous production of elongate light conductors An elongate light conductor of circular or other cross-section is continuously produced by depositing, in a vacuum chamber, a powdered glassy (i.e. vitreous or vitrifiable) material upon the upper end of a descending rod of like material while training a ... | 05/13/1980 |
| 4148218 | Apparatus for applying tensile stress to fiber First and second tractor assemblies apply a preset tension to incremental lengths of fiber which moves continuously through the apparatus. The apparatus performs the functions of fiber pulling and non-destructive testing of all of the fiber. Each tractor ... | 04/10/1979 |
| 4146376 | Microcomputer controlled winder An improved microcomputer controlled winder for attenuating a plurality of streams of molten glass issuing from a bushing into fibers and for collecting a strand of such attenuated fibers into a package. The microcomputer controls the winder speed in acco... | 03/27/1979 |
| 4145201 | Glass fiber producing and collecting apparatus This is an improvement to current processes and apparatus for producing monofilament glass fibers from a single or a multitude of streams of molten or plastic glass, being drawn through an orifice feeder into fibers and collected on a winder. A speed cont... | 03/20/1979 |
| 4101300 | Method and apparatus for drawing optical fiber For drawing an optical fiber from an optical fiber preform there are provided means for heating an optical fiber preform, means for pulling out an optical fiber from the optical fiber preform whose fore end part has been fused by heating, and means for ca... | 07/18/1978 |
| 4071340 | Apparatus for forming glass fibers An apparatus for producing glass fibers is disclosed. The apparatus includes means associated with a cover means for an applicator for moving the glass filaments from the surface of the applicator when waste filaments are being produced such that the glas... | 01/31/1978 |
| 4065065 | Method and apparatus for collecting strand material A method and apparatus are disclosed for collecting strand material, and especially glass strands. The method comprises oscillating the mid point of a rotating surface on which the strand material is collected through an included angle from the horizontal... | 12/27/1977 |
