Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 6203397 | convertible air and water toy gun A toy gun (10) is provided having a housing (11), a barrel (12), a trigger (13), and a manual air pump (14). The manual air pump is coupled to both a water pressure tank (15) and an air pressure chamber (30). The water pressure tank is coupled to a quick ... | 03/20/2001 |
| 6139037 | Wheelchair A seat support for a wheelchair, with a telescopically-joined support column and seat column for connecting to a cushioned seat, in which support pins in the support column are set for positioning the seat column at a selected height and a latch plate ope... | 10/31/2000 |
| 6112747 | Method of sterilizing females A method of sterilizing women is provided wherein a flexible hysteroscope (10), having an operating channel (11), a fluid channel (12), and an optical channel terminating at a lens (13), is passed through the cervix C and uterus to a position adjacent the... | 09/05/2000 |
| 6095253 | Linkage for independent vertical movement of digger/shaker/inverter root-crop harvester apparatus A multi-row peanut harvester having linkage for independent vertical movement of digger/shaker/inverter assemblies for digging peanut vines from the ground in a field, shaking dirt from the peanut vine roots, and inverting the peanut vines for exposing th... | 08/01/2000 |
| 6041939 | Beneficiation with selective flocculation using hydroxamates A process which uses selective flocculation with hydroxamates for the beneficiation of mixtures of mineral particles (such as kaolin clays). The increased selectivity of hydroxamates for certain mineral phases within kaolin clays and other mixtures of min... | 03/28/2000 |
| 6007618 | Kaolin clays which are conditioned prior to removing impurities Kaolin clays are conditioned for the removal of colored titaniferous impurities by (A) first mixing the kaolin clay with a collector to condition the impurities, in the absence of a dispersant, but in the presence of sufficient water to yield a mixture ha... | 12/28/1999 |
| 6003704 | Self-squaring wood cleated crate A cleated crate having opposing side panels and opposing end panels, hingedly connected together pairs of opposing inner and outer hinges which define corners in the crate. Each hinge comprises a pair of members having trapezoidal shapes in cross-section ... | 12/21/1999 |
| 6003687 | Compact disc storage rack A rack for the storage and display of compact disc cases includes a grid of horizontal and vertical bars to form a plurality of cells each sized to receive a compact disc case for display. A lip extending laterally from a vertical bar of each cell which d... | 12/21/1999 |
| 6003503 | Toy gun with fluid pulsator A fluid pulsator for a compressed gun (10) or water gun (30) is provided having a housing (404) with a fluid inlet (409) and a fluid outlet (410), an internal tube (405) reciprocally mounted within the housing, and a sealing member (406) reciprocally moun... | 12/21/1999 |
| 6005204 | Motion sensing switch mounted in a novelty device for generating a signal during movement A motion actuated switch for operating a signalling apparatus for emitting a light or sound signal from within a novelty article, in which a switch body is defined by a cap attached to plate and the switch body being mountable within the novelty article. ... | 12/21/1999 |
| 6000386 | Toy gun with fluid pulsator A fluid pulsator for a compressed gun (10) or water gun (30) is provided having a housing (604) with a fluid inlet (607) and a fluid outlet (608), an internal tube (605) reciprocally coupled to the housing, and a sealing member (606) reciprocally mounted ... | 12/14/1999 |
| 5996857 | Dispensing container for pourable contents An improved container providing improved spill control for the pouring of contents, such as fluids, into a receptacle, and in a preferred embodiment for pouring motor oil into an automobile engine, in which a moveable spout having a dispensing tube and a ... | 12/07/1999 |
| 5988172 | Perineal surgical apron A perineal surgical apron (10) for use in obstetrics and surgical procedures which apron comprises a fluid impermeable drape (11) having adhesive strips (15) and (15') at distal ends, and ties (17) for attaching the drape to a covering over a patient and ... | 11/23/1999 |
| 5982144 | Rechargeable battery power supply overcharge protection circuit A rechargeable power supply overcharge protection circuit is provided with shunt circuits that shunt current about a battery or battery cell (15, 16 and 17) of a string of battery cells when it is charged to a maximum charge limit. The shunt circuit inclu... | 11/09/1999 |
| 5974977 | Magnetic propulsion toy system A magnetic propulsion toy system is provided having a track (11), a boost station (12) and a car (14) made of magnetic material. The boost station has control circuit (18) with a battery (19), a wire coil (21), a capacitor (22), a manual triggering switch... | 11/02/1999 |
| 5967605 | Folding chair with stacking device A brace for a folding chair comprised two pieces of like construction with each piece having a support surface in a central portion of the brace sized and shaped to be fitted snugly about one side of a leg of a folding chair. Two flange portions straddle ... | 10/19/1999 |
| 5957745 | Gyroscopic figurine A gyroscopic figurine (10) is disclosed having a body (11) and a gyroscope (12) mounted within the body. The gyroscope (12) has a rotatable wheel (15) coupled with the shaft (23) of an electric motor (16). The shaft is oriented at an angle to the axis of ... | 09/28/1999 |
| 5958171 | Method of making a structural member A structural member formed from a billet, each member comprising a plurality of elongate corrugated paperboard sheets bonded together with an adhesive and disposed between a top and a bottom cap, each cap comprising at least one ply of a fibreboard sheet,... | 09/28/1999 |
| 5957145 | Selectively moveable umbrella A selectively moveable umbrella (10) for use in providing shade during outdoor leisure and work-related activities, in which a support holds an umbrella post (36) with a first end (37) and a canopy (41) attached to a plurality of support ribs extending fr... | 09/28/1999 |
| 5951200 | Enclosement to shield structure which secures entrance-deterring cap to manhole opening from water and dirt containments A cap formed with a pan that defines a central dish which receives a portion of the securing members that secure the pan to a manhole opening. A cover closes over the central dish to restrict entry of water and dirt contaminants into the central dish. The... | 09/14/1999 |
