Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 6915846 | Production tubing joint A production tubing joint is disclosed for a well comprising a barrel forming an upper tubing section and connected to the tubing hanger, a tubing connector within the barrel having a lower end connected to a lower tubing section of the production tubing string, a l... | 07/12/2005 |
| 6794059 | Multilayer thermal barrier coatings The present invention relates to a thin impermeable top coat on a thermal barrier coating for a metal part, such as a turbine blade, wherein the composite thin top coat is porous, inert, non-sacrificial, less permeable ceramic layer that eliminates the infiltration ... | 09/21/2004 |
| 6755700 | Reset speed control for watercraft A foot-operated control for controlling both speed and steering of a trolling motor for a watercraft, the foot-operated control in communication with the trolling motor and comprising a base and a foot interface. The foot interface is pivotally connected at a genera... | 06/29/2004 |
| 6739402 | Transport drawbar A transport drawbar for an agricultural tractor has an elongate forward drawbar section of substantially uniform rectangular cross section that mounts on the tractor in the conventional way. An elongate second drawbar section extends to the rear from the forward sec... | 05/25/2004 |
| 6691795 | Snow or soil grader A grader vehicle has a vehicle body mounted on two drive tracks. A boom is mounted on the front of the vehicle and extends to the front of the body. A third drive track is mounted on the leading end of the boom by a steering mechanism for rotation about a... | 02/17/2004 |
| 6688581 | Snowmobile stand mechanism A snowmobile stand mechanism for drive-track type snowmobiles is provided comprising a stand rotatable between a transport position where the stand is not engaged and a use position where the stand is engaged and elevates the drive track above the ground ... | 02/10/2004 |
| 6439153 | Queuing system A queuing system is provided for queuing conventional coins corresponding to a line of persons. The system includes an endless track supporting tokens therein for sliding movement in a first direction along the track. The tokens are arranged to support th... | 08/27/2002 |
| 6367496 | Driving range shelter A portable shelter includes a frame having front and back arches joined by two skids at their bottom ends and a set of braces extending between the arches. A cover over the frame has a water impervious top panel and end and back panels that are an air per... | 04/09/2002 |
| 6350048 | Passenger lighting system for mass transit vehicle A public transit vehicle has a vehicle body having a roof defining an interior ceiling surface, two side walls each extending longitudinally of the vehicle including an upper side wall portion connecting to the roof and a row of windows underneath the upp... | 02/26/2002 |
| 6298620 | Moisture control panel A moisture control panel is used in exterior walls. A wall constructed with the panel has an inner back-up wall component and an outer wall component of a moisture pervious material, for example stucco. The moisture control panel is positioned between the... | 10/09/2001 |
| 6220001 | Bale bagger A bale bagging apparatus is used for inserting bales in sequence into a tube of plastic film. The apparatus has a set of panels surrounding the bale at a bagging station of the apparatus and supporting the tube in a stretched state out of contact with the... | 04/24/2001 |
| 5117775 | Floatation device A floation device includes a molded outer shell defining a hollow interior. The hollow interior is filled with recycled plastic bottles of the type used conventionally for soft drink containers which are molded from a plastic material and include a genera... | 06/02/1992 |
| 4869035 | Non-linear stair A modified construction for a non-linear or curved staircase employs a technique in which the treads for the staircase are initially cut to the required shape and size. Flexible plywood boards of the same length and height as the required stringers are th... | 09/26/1989 |
| 4864900 | Testing and adjusting tool for air brake cams Conventionally, air brake cam clearance is difficult to check due to inaccessibility and the force necessary to rotate the cam to check for the required clearance. The present device engages around the end of the cam lever both front and back and gives su... | 09/12/1989 |
| 4863216 | Baby chair of the type which hooks on a table edge A baby chair of the type which can be attached to an edge of a table includes an upper rail which is U-shaped to define two forwardly projecting members which engage the table and a base of the U-shape which extends around the rear of a chair portion whic... | 09/05/1989 |
| 4858419 | Swath treating attachment for a swather An attachment for a swather comprises a panel which is hinged at a front edge on the swather so as to hang downwardly and rearwardly therefrom so that rear edge engages and compresses the swath as it emerges from the swather. The panel is spring biased do... | 08/22/1989 |
| 4856123 | Toilet apparatus for use by bed ridden patients A toilet apparatus for use with bed ridden patients comprises a frame which provides an upper horizontal patient support so that the patient can be transferred from a lying condition in a bed onto the support. A back portion of the support then pivots abo... | 08/15/1989 |
| 4854103 | Building system with interlocking blocks An interlocking system of blocks comprises a basic block having side walls and transverse webs all of constant thickness with the webs being rectangular in shape and offset upwardly from the bottom of the edges of the side walls to form recesses at the bo... | 08/08/1989 |
| 4852447 | String arrangement for a musical instrument A string arrangement for attachment to a conventional stringed instrument comprises a substantially conventional string which is carried upon a reel member surrounded by a cover member with the string passing through an opening in the cover member. The re... | 08/01/1989 |
| 4851814 | Door alarm A portable door alarm is used in such environments as hotel rooms and the like. The alarm has a housing containing the alarm mechanism with a front face on which the alarm controls are mounted. The housing is suspended from the shank of a door handle by a... | 07/25/1989 |
| 4850658 | Jewelry storage container A jewelry support device comprises an upper section defined by an upper octagonal plate and a lower octagonal plate between which are supported four jewelry support members each formed by two plates at right angles rotatable relative to the plates about a... | 07/25/1989 |
| 4848450 | Heat exchanger A heat exchanger includes a core structure formed by a plurality of plate members in stacked arrangement. Each plate member is square or rectangular and includes along two opposed sides a portion bent at right angles to the basic plate and then bent inwar... | 07/18/1989 |
| 4846781 | Centrifugal separator A centrifugal separator for gold or the like is of the type in which a bowl is rotated at high speed so that materials fed into the bowl pass over the peripheral wall of the bowl to an open mouth. On the inner surface of the bowl is provided a series of r... | 07/11/1989 |
| 4838439 | Hoist for use at a manhole A hoist for use over a man hole includes a H shaped base part defining two side struts and a cross strut offset toward one end of the side struts. The base part has four legs arranged at the ends of the side struts, adjustable in height and terminating in... | 06/13/1989 |
| 4833846 | Ground anchor system for supporting an above ground structure A device for supporting a building structure or the like includes an elongate shaft which is of square cross section and has a short length of screw flight at a lower end and the male screw threaded portion at an upper end extending coaxially with the sha... | 05/30/1989 |
| 4827542 | Inflatable container for a small child An inflatable container for use as a crib, playpen, bassinet and safety car bed is provided by a rectangular base and attached side walls, all of which can be inflated by an air pump permanently attached along the top of one side wall. Between adjacent ed... | 05/09/1989 |
| 4826088 | Pneumatic distribution system with split ducts A pneumatic distribution system for particulate material includes a tank and a plurality of pipes extending outwardly from the tank to respective sides thereof. Each of the pipes forms part of the duct from a metering system and carries the particular mat... | 05/02/1989 |
| 4825970 | Power takeoff shaft arrangement for a road vehicle A power takeoff attachment for a conventional road vehicle includes a base member with a rod extending transvesely thereto and of a length so that the outer end thereof can be inserted into a pivot coupling for example provided by a V-shaped space between... | 05/02/1989 |
| 4823679 | Building ventilation system with air inlet flap control In a ventilation system for a building in which air is extracted by a fan arrangement, an inlet flap arrangement is provided for a ceiling opening which comprises a foamed material flap member mounted directly covering the ceiling opening. The flap member... | 04/25/1989 |
| 4823425 | Chimney flue brush A brush for cleaning a chimney flue is formed from a central hub outwardly from which extends a plurality of plastics strips manufactured from strapping tape having a width of the order of 1/2 inch and a thickness of the order of 0.030 inch. The device is... | 04/25/1989 |
| 4823937 | Auger including a step contruction designed for attachment thereto A step construction for an auger tube comprises a clamp which clamps around the auger tube at a position spaced from the hopper at the lower end of the auger tube. A flat step member is pivotally coupled to the clamp and includes a leg at an end remote fr... | 04/25/1989 |
| 4819887 | Rack for storing and dispensing rolled floor covering A rack for supporting a plurality of rolls of sheet material particularly floor covering is defined by a frame structure carrying two chains one at each end with the chains arranged to rotate around upper and lower chain wheels. The chains rotate in synch... | 04/11/1989 |
| 4815369 | Injection of wrapped bale with anhydrous ammonia Baled animal feed material is improved by being moved onto a vehicle either by a lifting mechanism at the side of the vehicle or by a platform which takes the bale directly from a baler. On the vehicle is firstly mounted a wrapping station in the form of ... | 03/28/1989 |
| 4815149 | Fabric clothing including a three dimensional pattern An article of apparel, generally a T shirt which includes a fabric layer upon which is attached a three dimensional molded article providing a three dimensional relief pattern on a front part of the T shirt to enhance the appearance and provide opportunit... | 03/28/1989 |
| 4809921 | Apparatus for dispensing and re-rolling floor covering materials A device for measuring and re-rolling floor covering material, particularly carpet comprises a base member having sides and a transverse table top. On each side of the table top is mounted a cradle which extends downwardly from the table top and outwardly... | 03/07/1989 |
| 4809683 | Aid for cardio-pulmonary resuscitation An aid for cardio-pulmonary resuscitation comprises a flat disc having a lower surface coated with an adhesive suitable for application to the skin of a patient, the adhesive being covered by a removable film to allow the adhesive to be activated. The upp... | 03/07/1989 |
| 4807410 | Self-containing package system for storage and transportation of pre-fabricated portions of a building structure and the assembly thereof A floor or ceiling unit is prefabricated in two halves which can be assembled together to form the unit or one of the halves can be turned upsidedown and nested underneath the other half thus forming a package with upper and lower panels. These panels can... | 02/28/1989 |
| 4800934 | Device for pouring drinks having layers of different densities A device for pouring layered drinks comprises a base portion in the form of a tray defining four recesses onto which four separate glasses can be located. A top portion has four cup member recessed in an upper surface. Each cup member has four ribs extend... | 01/31/1989 |
| 4796416 | Portable shredder/lawn mower for garden use and the like The device includes a wheel mounted frame having a detachable base plate, when used as a shredder, a small engine on the upper side of the frame and an internal blade enclosure within said frame, a small chute to limit the intake and prevent overloading f... | 01/10/1989 |
| 4794852 | Inlet Device An inlet device for the wall of a building for example an animal barn comprises a simple moulded rectangular body through which the air can pass having an open mouth at one end and an inlet surface in a lower downwardly facing surface on the outer side of... | 01/03/1989 |
