Famous Patents
William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7078003 | Device for the transfer of energy and/or matter between a soluble solid and a liquid The invention relates to a device for the transfer between a solid matter and a liquid, comprising an outer drum and a perforated inner drum, means for commonly rotating the drums, and means situated inside the inner drum for moving the solid matter. In between the ... | 07/18/2006 |
| 6106438 | Bi-directional torsion spring wrist hand and forearm exerciser A hand-held bidirectional torsion spring wrist, hand and forearm exercise device has a pair of handgrip members rotatably joined together to rotate relative to each other in opposed directions about a common longitudinal axis, each sized and shaped to be ... | 08/22/2000 |
| 5853488 | Processes for extracting sugars from dates and for making novel food products Processes for extracting three sugars, fructose, sucrose and glucose, from dates are disclosed. Pitted dates are frozen and subdivided into particles. The particles are contacted with a heated water solution to extract the sugars from the date fibers. The... | 12/29/1998 |
| 5772775 | Method of extraction of juice from sugar cane A continuous countercurrent process is provided of extracting juice from a bed of fibrous material such as sugar cane, the process comprising a plurality of stages, preferably three, with each stage including the removal of air, displacement of juice by a... | 06/30/1998 |
| 5409541 | Method and apparatus for extracting soluble and dispersible materials from products using a slotted scroll extractor A counterflow single-screw extractor includes a screw conveyor having a helical scroll formed from arcuate flight sections each having a plurality of elongated slots extending away from the direction of screw rotation and permitting the flow of effluent t... | 04/25/1995 |
| 5266120 | Process and apparatus for the pre-treatment of cut sugar beets A preliminary treatment of sliced sugar beets before they are subjected to diffusion comprises a first stage wherein the sliced sugar beets are contacted with a first solution of calcium monosaccharate while the sliced sugar beets and the calcium monosacc... | 11/30/1993 |
| 5104453 | Method and apparatus for eliminating liquid components and fine-grained components from a sugar suspension In a method and apparatus for eliminating liquid components and fine-grained components from a sugar suspension, control variables for controlling the centrifuge are obtained from a measurement of the quantity of material per unit of surface area in the f... | 04/14/1992 |
| 4997489 | Extraction of products from almond fruit The invention relates to a process for recovering sugar, sugar alcohol and organic acids comprising citric, malic and quinic acids from a juice extracted from almond hulls. Residues from the extraction is also recovered.... | 03/05/1991 |
| 4311673 | Apparatus for extracting with a liquid, products which are part of solids The apparatus comprises inside a rotating drum, two conveying screws nested inside one another and a partition passing through the drum axis to form two series of succeeding cells inside which the solids and the liquid move in counter-current, two liquid ... | 01/19/1982 |
| 4289734 | Apparatus for contacting solids with a liquid Apparatus for countercurrently contacting solids with a liquid comprises a rotatable drum housing a screw conveyor having helical turns affixed to the cylindrical side wall of the drum and defining a helical passageway for the solids between the turns, th... | 09/15/1981 |
| 4226638 | Method of manufacturing xylose solution from xylan-containing raw material Xylan-containing raw material which is very absorbent in the dry state, particularly one year old plants, is treated with an acid either by spraying or by an acid vapor to a limited extent. The extent of treatment is sufficient to permit hydrolysis of the... | 10/07/1980 |
| 4049386 | Apparatus for extracting components of solids by means of a liquid An apparatus for extracting components of solids, by means of a liquid contacting the solids in counter-current flow, comprises a rotating drum with a substantially horizontal axis, which drum has generally axial compartments extending from one end to the... | 09/20/1977 |
