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 |
| 5386844 | Float actuated combination air and vacuum valve A combination air and vacuum valve comprises a valve body (20) including a fluid inlet (25) and gas outlet (26), a valve poppet (8) guided to open and close said outlet (26), a float (19) and rod (18) connected operatively thereto in a vertical orientatio... | 02/07/1995 |
| 5221623 | Use of bacterial luciferase structural genes for cloning and monitoring gene expression in microorganisms and for tagging and identification of genetically engineered organisms A host microorganism is genetically and stably modified by the insertion into any of its non-essential chromosomal location of a non-homologous, recombinant foreign DNA fragment, maintaining an insertion of a luxAB gene of a selected bioluminescent bacter... | 06/22/1993 |
| 5200399 | Method of protecting biological materials from destructive reactions in the dry state A method is provided for protection of biological materials from the stresses of air-drying and also from destructive reactions, such as oxidation and free-radical attack, which degrade the materials during long-term storage. The method involves drying th... | 04/06/1993 |
| 5196244 | Disposable tissue trap with aseptic barrier The discovery of this invention is that the use of an aseptic barrier in the form of a layer of material which is impervious to the passage of water in combination with at least one layer of absorbent tissue in the form of a disposable tissue or handkerch... | 03/23/1993 |
| 5186198 | Intake manifold relief valve An intake manifold relief valve comprising a valve body (13) having at least two openings, one opening being an inlet (22) for gas and another opening being an outlet (23) for gas to relieve excess pressure, a piston (8) for opening and closing said gas i... | 02/16/1993 |
| 5183659 | Protection of equines against Streptococcus equi A new bacterial vaccine to protect susceptible equine against S. equi which causes strangles. The vaccine stimulates a nasopharyngeal immune response in a susceptible equine through the presence of antibody activity in the nasopharyngeal mucus. The vaccin... | 02/02/1993 |
| 5174412 | Ladder leveler A simple ladder leveling device which slides onto either leg (8) of a ladder. The device is secured onto the ladder by sliding underneath and around rungs of the ladder. Furthermore, the ladder leveler includes a channel sleeve (3) with a slidable intrack... | 12/29/1992 |
| 5163014 | Pitching speed indicator An apparatus which can determine the velocity of a projectile based on distance traveled and time of travel. The apparatus includes a manually operated stopwatch function which can measure elapsed time to at least hundredths of a second, a calculator func... | 11/10/1992 |
| 5148831 | Bi-directional shaftless butterfly valve The present invention is a shaftless bi-directional butterfly valve that does not require a valve housing and may be mounted to a length of pipe by merely drilling a hole into the wall of the pipe. A stuffing box is attached to a pipe by a U-bolt or other... | 09/22/1992 |
| 5140988 | Detection of abnormal bone structure in animals and carcasses with ultrasound Method and apparatus for determining a condemnation condition in a post mortem animal intended for human consumption is taught hereinabove. The apparatus includes an ultrasound machine, including a probe, wherein the probe is positioned on the animal such... | 08/25/1992 |
| 5129174 | Fishing line holder A device which can be placed on or removed from a fishing pole simply. It holds fishing line with the bail on reel open or closed until a fish strikes. Tension can be adjusted to control the amount of pull on the line needed to release the line. A signali... | 07/14/1992 |
| 5098721 | Starter compositions for producing fermented milk products A fermentation starter composition for fermented milk products such as cheese, buttermilk, sour cream and yogurt, formed from an inherently buffered, concentrated milk protein concentrate which is a retentate formed by ultrafiltering milk and a milk ferme... | 03/24/1992 |
| 5070543 | Method and means of surgical needle protection A method and specifically constructed surgical gloves and glove parts for protecting a user of a surgical instrument from protrusion through his own skin by the instrument he is manipulating to cut or suture a patient comprising the following steps: a) th... | 12/10/1991 |
| 5067384 | Braider method and apparatus for manufactured faired rope or cable Method and apparatus for manufacturing a braided jacket with fairing members on a cable core using a standard dual sinusoidal path braiding apparatus comprising apparatus to perform the following steps: a) picking up a thread bundle from the selected bobbin-th... | 11/26/1991 |
| 5062249 | Furnace crown means and method The invention herein teaches a crown system for kilns and furnaces for the high temperature firing of materials. One method used in the industry for a crown system consists of supporting layers of insulation with inverted T-rails attached to bones which a... | 11/05/1991 |
| 5058268 | Method of making and repairing a furnace crown The invention herein teaches a crown system for kilns and furnaces for the high temperature firing of materials. One method used in the industry for a crown system consists of supporting layers of insulation with inverted T-rails attached to bones which a... | 10/22/1991 |
| 5009142 | Means and method for automatic resonance tuning A method and apparatus is provided for the adjustment of resonance on a freely vibrating filament by the use of piezoelectric pushers which are solid state devices whose lengths change as a result of applied voltage. The pushers are configured in such a m... | 04/23/1991 |
| 5005841 | Means and method of a game board for receiving magnetic pieces A new and improved game board for use as a receiver for magnetized game pieces. The game board comprises a metallic wire screen embedded between two layers of flexible plastic.... | 04/09/1991 |
| 5002221 | Stacked pizza pie box A rectangular box for transporting multiple pizza pies, with one or more pairs of short horizontal cuts in each corner, such that they form shelf supports when poked into the box. The shelf supports are configured such that they provide ventilation for th... | 03/26/1991 |
| 4996717 | Radio receiver noise squelching and operational indicating alarm A clock-driven pulse source is used to apply repetitive short pulses to the squelch control connection point of the squelch circuitry of a radio receiver to deactivate momentarily the squelch circuitry at regular intervals. This provides periodic noise bu... | 02/26/1991 |
| 4981133 | Pressure bandage for puncture wounds with a target marketing A pressure bandage and method for using it is disclosed. The bandage comprises a piece of multi-layered absorbant material having a target marking on a bottom side and a corresponding target marking on a top side, wherein the target markings form a line w... | 01/01/1991 |
| 4973090 | Method and means of securing, shortening and drawing objects together using a knot A method of binding material with a knot including: drawing a continuous lace of binding material around the material to be bound so that two separate draw points are formed, tying the continuous lace of material initially in a half-knot with two equal su... | 11/27/1990 |
| 4971793 | Subunit canine parvovirus vaccine A recombinant subunit vaccine for protecting dogs against infection caused by canine parvovirus comprising VP-2 protein produced during replication of a recombinant baculovirus in insect tissue culture cells or insects which are a permissive host for the ... | 11/20/1990 |
| 4944490 | Shaftless butterfly valve The present invention is a shaftless butterfly valve that does not require a valve housing and may be mounted to a length of pipe by merely drilling a hole into the wall of the pipe. A stuffing box is attached to a pipe by a U-bolt or other conventional m... | 07/31/1990 |
| 4936996 | Method of processing biodegradable organic material An improved method and apparatus for treating a biodegradable organic material in an aqueous medium to produce methane gas is disclosed. The method involves flowing the aqueous medium under pressure through a hydrolytic-redox, immobilized microbe bioreact... | 06/26/1990 |
| 4932164 | Counterbalance safety guard for a dual action sander The present invention is a counterbalance safety guard for a dual action sander designed to protect the user from the rotating and moving parts. This invention also includes a teaching which would permit adjustment of the sander from the circular sanding ... | 06/12/1990 |
| 4906586 | Suspended gate field effect semiconductor pressure transducer device A capacitive pressure transducer comprising: field effect solid state electronic device having a semiconductor gate area, an insulating layer and a gate element; the gate element being made of conducting material and being constructed to move in response to pr... | 03/06/1990 |
| 4905813 | Escrow credit controllers and method of operation thereof An escrow credit controller for use with vending machines having a vend path which is several articles in length, such as a copier machine. The controller accepts value in the form of coins or bills, and escrows the value in an escrow total. When the escr... | 03/06/1990 |
| 4898814 | A cDNA clone for human tyrosinase This discovery resulted when a λ gt11 cDNA library of normal human melanocytes were screened with antibodies directed against purified hamster tyrosinase. Sixteen independent clones which gave a positive signal were isolated from 5×105 indepe... | 02/06/1990 |
| 4891504 | Security level identification method for computer based information A multi-classification information security method to prevent information in a computer information system with one of a plurality of security classifications to be written onto an input/output means with a non-compatible security classification. The meth... | 01/02/1990 |
| 4890827 | Rodent raceway Apparatus and method for transporting and racing small creatures, such as gerbils, without creating a health hazard at an eating establishment or subjecting the creatures to mishandling by patrons. The creatures are transported in individual starting boxe... | 01/02/1990 |
| 4871293 | Mechanical positioning or transferring system This invention is directed to transferring articles from a pickup position to a discharge position by using a driven pickup arm with a holder. The pickup arm is driven by a driving arm and is raised and lowered and stopped by contact with a cam mechanism ... | 10/03/1989 |
| 4869013 | Snag-pruffer A weed guard for attachment to the base of the eye of a fishhook having one, two, or three hooks for the purpose of preventing the hooks from snagging on weeds and like marine growth during use in areas having underwater or surface weed growth. The weed g... | 09/26/1989 |
| 4848824 | Truck bed rim frame with express access flap A truck bed rim frame having a removable and/or movable express access flap to be mounted over the rim of a truck bed for the dual purposes of supporting a cover and creating a storage compartment in the rear portion of the truck bed under the cover. The ... | 07/18/1989 |
| 4834450 | Tote-table A combined table and bench assembly for indoor and outdoor use, capable of being assembled and disassembled without tools. The component parts of the assembly fit together solely with interlocking notches and/or protrusions. The assembly is sturdy and wil... | 05/30/1989 |
| 4819762 | Folding three legged sawhorse A folding three legged sawhorse suitable for use alone or in combination with another of the same is disclosed. A first horizontal beam is supported by a leg at each end. A second horizontal beam is hinged near the midpoint of the first horizontal beam an... | 04/11/1989 |
| 4818770 | Prevention of a plant disease by specific inhibition of fungal polyamine biosynthesis DL-alpha-Difluoromethylornithine (DFMO), an inhibitor of the polyamine biosynthetic enzyme ornithine decarboxylase (ODCase; EC 4.1.1.17), strongly retards the growth of several species of phytopathogenic fungi in vitro. Such inhibition can be completely r... | 04/04/1989 |
| 4812888 | Suspended gate field effect semiconductor pressure transducer device A capacitive pressure transducer comprising: field effect solid state electronic device having a semiconductor gate area, an insulating layer and a gate element; the gate element being made of conducting material and being constructed to move in response to pr... | 03/14/1989 |
| 4807505 | Bagel slicer The present invention is an apparatus for slicing bagels or the like and includes: a base; a pair of face-matching blocks mounted vertically on the base, each of the face-matching blocks having a chamber therein facing and matching the other, which togeth... | 02/28/1989 |
| 4804195 | High temperature sealing device A gas-tight seal for rotating high-temperature devices, comprising one or two seals of the labyrinth type, located on opposite sides of a hopper through which the shaft passes. Each labyrinth uses a plurality of rings as seal members. One set of the rings... | 02/14/1989 |
