Famous Patents
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 |
| 4060966 | Apparatus for spinning textile fibers Two juxtaposed drums are arranged to rotate in the same sense and are closely spaced apart to define between them a throat and two gaps tapering towards the throat on opposite sides thereof. The drums are operable to engage flying fibers entering one of t... | 12/06/1977 |
| 4051653 | Apparatus for spinning textile fibers A suction drum has an air-permeable shell and is rotatable about a first axis. A rotary disc is rotatable about a second axis, which crosses said first axis and is spaced therefrom by a distance which is equal to one to two diameters of said drum. Said ro... | 10/04/1977 |
| 4021795 | System for indicating depletion of sliver from a sliver can A system for indicating a predetermined degree of depletion of sliver from any one of a plurality of sliver cans comprising a source of energy, a plurality of individual indicating devices associated respectively with each can, a common indicating device,... | 05/03/1977 |
| 4005505 | Method of producing a sliver-like fibrous element A method of pneumatically traversing a linear fibrous element during its packaging in a rotated perforated canister as air is withdrawn from the canister through its sidewalls and bottom wall; the air moves downwardly through the package during package fo... | 02/01/1977 |
| 4003104 | Coiler calender rolls A calender roller apparatus is provided for use with sliver coilers and the like wherein a sliver is passed for delivery between surface engaging coiler rollers rotatably carried on a pair of parallel roller assemblies. One of the roller assemblies is fix... | 01/18/1977 |
| 3994046 | Composite sliver forming assembly Prearranged ribbons of fiber leaving the front drafting roll are superimposed into layers by a composite sliver forming assembly before entering a trumpet. The composite sliver forming assembly consists of tubular guides extending at an angle from the fro... | 11/30/1976 |
| 3981137 | Method of spinning textile fibers An air stream is caused to impinge on a collecting surface disposed in a sharply defined suction zone. Fibers having a predetermined maximum length are entrained by said air stream to cause said fibers to be delivered to and form a condensed sliver on sai... | 09/21/1976 |
| 3979893 | Mechanical system and method for continuous working woolen type yarn from cards to spinning frame For working a web of woolen type yarns leaving a finisher card, a condenser head splits the web into parallel bands. The bands are delivered to pairs of rubbing rolls which reciprocate relative to one another to convert the bands to slubbings having false... | 09/14/1976 |
| 3950822 | Device for manufacturing a silver used to produce jaspe yarn A fiber web for use in the manufacture of slub or jaspe yarn is produced by a modification of a carding engine whereby a final fancy roller is mounted on a controllably movable support for movement towards and away from the surface of the carding drum, th... | 04/20/1976 |
| 3946464 | Devices for handling unspun fibers A device for removing and collecting together a fiber web emerging from a card or the like comprises power driven transport means placed immediately downstream in the direction of travel of the web from the delivery device, and constituting a transport su... | 03/30/1976 |
| 3932163 | Apparatus for producing a sliver-like fibrous product Apparatus for and the method of producing a sliver-like fibrous product including forming glass fibers, conveying the glass fibers in a body of gas and depositing them on the porous rim of a rotating wheel to form a coherent web, advancing the porous rim ... | 01/13/1976 |
