Quotables
"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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 |
| 5453204 | Treatment of hydrolyzer systems in propylene oxide production Production of propylene oxide by hydrolysis of propylene chlorohydrin in an aqueous alkaline reaction medium having a pH above 12 and a temperature of at least about 85° C., is conducted in the presence of a small scale-inhibiting amount of a scale inhib... | 09/26/1995 |
| 5445740 | Floating media biofilter A floating media biofilter is provided, comprising a tank having a bottom and a sidewall, the sidewall having a lower portion inwardly sloping toward the bottom. Floating media are present in the tank for forming a media pack when the tank is filled with ... | 08/29/1995 |
| 5435213 | Ring gear camming member A camming member for power tongs, comprising a ring-shaped body including a central opening formed therein, the body being .rotatable about a point within the central opening, the body further including a slot, the slot opening through the body and commun... | 07/25/1995 |
| 5433322 | Scaffold stacking device with a cleat and cable A scaffold stacking device of unitary construction is provided, comprising a generally elongated block member having a top side and a bottom side; a plurality of semi-circular recesses formed along the top and bottom sides, wherein each of the recesses is... | 07/18/1995 |
| 5419594 | Quick-connect conduit coupling A coupling for connecting sections of conduit is provided, comprising an insertion member, a receiving member, a release collar, a first resilient ring member, and a second resilient ring member. The insertion member includes a plurality of O-rings for se... | 05/30/1995 |
| 5409240 | Seal with self-lubricating contact surface A seal between a housing and a rotatable shaft is provided, comprising a first ring member generally concentric with a rotatable shaft, the first ring member being attachable to the shaft in a non-rotatable position relative to the shaft, the first ring m... | 04/25/1995 |
| 5392775 | Duckbill valve for a tracheostomy tube that permits speech A tracheostomy valve for use in conjunction with a tracheostomy tube is described. The tracheostomy valve comprises a housing and a one-way valve. The housing has an aperture including a forward and rear opening defined therethrough. The housing also incl... | 02/28/1995 |
| 5360538 | Mixed liquor wasting system In an extended aeration wastewater treatment system having wastewater flowing into a retention basin so as to form mixed liquor within the retention basin, a mixed liquor wasting system is provided, comprising a thickener tank, having a sidewall and a bot... | 11/01/1994 |
| 5275421 | Mechanical seal stud torquing system An improved cartridge mounted mechanical seal for providing a seal between a housing and a rotatable shaft is provided, including at least one radial stud which extends from the inside of the rotary sleeve of the seal through the rotary sleeve and into th... | 01/04/1994 |
| 5268942 | Temporary cooling system and method for removing decay heat from a nuclear reactor In combination with a nuclear power generating facility including a composite fuel pool including a reactor cavity and a spent fuel pool fluidly connectable to the reactor cavity, the composite fuel pool at least partially containing a primary fluid, a nu... | 12/07/1993 |
| 5255592 | Wrist pin and method for manufacturing a wrist pin A wrist pin is provided for connecting a connecting rod to a piston, comprising a cylindrical aluminum pin having an outer cylindrical surface, the pin being matingly insertable into a bore of a piston, the outer cylindrical surface having an anodized coa... | 10/26/1993 |
| 5257296 | Steam generator chemical solvent mixing system and method A steam generator chemical solvent mixing system and method is provided. The chemical solvent mixing system includes a pump, having a discharge port fluidly connected to a discharge line and a suction port fluidly connected to a suction line. An upper lev... | 10/26/1993 |
| 5222718 | Flanged washer spring A flanged washer spring is provided, comprising a first disk having a central opening, outer periphery, a first side and a second side, the first disk further having an annular inner flange extending axially from the first side, and an annular outer flang... | 06/29/1993 |
| 5217234 | Mechanical seal with barrier fluid circulation system An improved mechanical seal is provided, wherein an annular inner flange extending from a gland plate having inlet and outlet openings is provided with a series of notches between the inlet and the outlet openings, the notches running in the direction of ... | 06/08/1993 |
| 5126042 | Floating media biofilter A biofilter is provided, including a tank, having a bottom, a top and a sidewall having a lower portion which is inwardly sloping toward the bottom; floating filter media in the tank, the media forming a floating media pack when the tank is filled with li... | 06/30/1992 |
| 5116330 | Sample extraction system A sample extraction system is provided, comprising a sample container having an inlet and an outlet; a sample inlet line, fluidly connected at one end to a source of sample fluid and at the other end to the inlet of the sample container; a sample exit lin... | 05/26/1992 |
| 5112296 | Biofeedback activated orthosis for foot-drop rehabilitation A biofeedback activated orthosis for foot-drop rehabilitation is provided including a lifting mechanism, a control circuit, a muscle activity sensing mechanism, and an electrogoniometer. The lifting mechanism lifts a foot through the swing phase of a gait... | 05/12/1992 |
| 5110005 | Waste container liner A method for manufacturing a liner for a waste container is provided, comprising the steps of extruding a flexible envelope, the envelope having ends; flattening the envelope so as to form a top side and a bottom side; cutting a lengthwise slit in the top... | 05/05/1992 |
| 5110805 | Method for protecting plants against soil-borne fungi using glyphosate and imazaquin compositions A method for protecting crops against soil-borne fungi, which method comprises: treating the soil with a fungicidal effective amount of a composition selected from: (a) an N-phosphonomethyl glycine, or salt thereof; (b) a 2-(2-imidazolin-2 yl)quinoline, o... | 05/05/1992 |
| 5098364 | Waste container liner and method for manufacturing same A method for manufacturing a liner for a waste container is provided, comprising the steps of extruding a flexible envelope, the envelope having ends; flattening the envelope so as to form a top side and a bottom side; cutting a lengthwise slit in the top... | 03/24/1992 |
| 5078532 | Scaffold connection An improved scaffold connection is provided, comprising a first ring member having an upper side and a lower side, fixedly attachable to a vertical scaffold member; a connector body having a first end, a second end, a top, a bottom and sides, fixedly atta... | 01/07/1992 |
| 5076007 | Aquatic animal trap An aquatic animal trap is provided, comprising a center enclosed cell having a bottom and mesh sides having at least one entrance passageway formed therein; and at least three radially spaced outer enclosed cells, each of the outer cells having a bottom a... | 12/31/1991 |
| 5068720 | Video inspection system for hazardous environments A video inspection system for hazardous environments is provided, comprising a housing, sealable so as to contain a pressurized gas therein, having a view opening therein and further including a valve for introducing pressurized gas into the housing, conn... | 11/26/1991 |
| 5065661 | Hand held electronic keyboard instrument A keyboard instrument is provided, comprising a keyboard housing having a top and a bottom; a handle attached to and extending from the bottom of the keyboard housing; a keyboard having a plurality of keys operatively attached to the top of the housing; a... | 11/19/1991 |
| 5063377 | Display system Accordingly, a display system is provided whereby visual elements can be independently transported not only around but also parallel to the display axis. The display comprises a central shaft; carriages mounted along the length of this shaft; and visual e... | 11/05/1991 |
| 5062749 | Tool coupler A tool coupler is provided, comprising an elongated body having upper and lower ends and further including a non-circular first axial bore extending at least partially through the body from the upper end toward the lower end, a flange extending radially f... | 11/05/1991 |
| 5056855 | Vehicle bed cover assembly A vehicle bed cover assembly is provided, comprising a primary frame member having an exterior side and an interior side, fixedly connectable between the sidewalls of a vehicle bed, the frame member extending to a desired height above the sidewalls; a rol... | 10/15/1991 |
| 5028164 | Scaffold connection An improved scaffold connection is provided, comprising a first ring member having an upper side and a lower side, fixedly attachable to a vertical scaffold member; a connector body having a first end, a second end, a top, a bottom and sides, fixedly atta... | 07/02/1991 |
| 5007122 | Head restraint A head restraint is provided, comprising a resilient block having an exterior surface and including a bottom; an inclined front face having a top edge; a rear face; sidewalls; a cavity in the front face forming an interior cavity wall, the intersection of... | 04/16/1991 |
| 4987785 | Constant volume sampling system A constant volume sampling system is provided, comprising a sample loop including a section of tubing having a predetermined volume and having a first end and a second end; a first valve having a first port, connectable to a process line, a second port co... | 01/29/1991 |
| 4986138 | Sample injection means A sample injection device is provided, comprising a vented needle having a body, the body having an upper end and a lower end, a point on the lower end, an injection passageway running axially through the body and communicating between the upper end and t... | 01/22/1991 |
| 4986146 | Camming member for power tongs A camming member for power tongs is provided, comprising a body including a central opening formed therein, the body being rotatable about a center point within the central opening, the body further including a slot for positioning a tubular member within... | 01/22/1991 |
| 4961111 | Video inspection system for hazardous environments A video inspection system for hazardous environments is provided, comprising a housing, sealable so as to contain a pressurized gas therein, having a view opening therein and further including a valve for introducing pressurized gas into the housing, conn... | 10/02/1990 |
| 4959922 | Aquatic trap funnel An improved aquatic animal trap funnel made of a hollow, plastic conical tube, inside a crayfish trap, fitting over a pre-existing mesh funnel. The solid sheet funnel acts to retain more, larger crayfish by hindering escapes, encouraging a behavioral resp... | 10/02/1990 |
