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 |
| 5129246 | Tubing expander A mechanical expander for tubing for heat transfer products. The tubing expander includes one or more elongated rods, each having an enlargement on the forward end thereof for insertion into tubing to be expanded. The rods are supported on a carriage whic... | 07/14/1992 |
| 5130695 | Alarm system with sustained alarm An alarm system includes an electrical energy source; an alarm for producing an alarm signal when electrically coupled to the electrical energy source; a switch for movement from a first position to a second position upon the occurrence of the monitored e... | 07/14/1992 |
| 5125518 | Interlocking hanging system An interlocking hanging system including a mounting bracket which may be secured to a supporting structure, a support panel which attaches to and hangs from the mounting bracket, and one or more article holders, such as hooks or trays, which attach to and... | 06/30/1992 |
| 5125221 | Grain tank cover apparatus A cover apparatus for use with a combine harvester of the type including a grain tank having an opened top. The cover apparatus includes a cover for covering the opened top of the grain tank, the cover having a top portion for being positioned over the to... | 06/30/1992 |
| 5123259 | Refrigerant recovery system An apparatus and method for refrigerant recovery which removes refrigerant in liquid form from an air conditioning unit by cooling the refrigerant, thereby creating a temperature gradient between the air conditioning unit and the recovery apparatus which ... | 06/23/1992 |
| 5113948 | Oil well fire extinguisher with internal pipe crimper A fire extinguisher extinguishes a fire burning relative to a support surface. The fire emanates from an opened end of a pipe. The fire extingisher includes a body having a downward opening cavity for being dropped over the fire to enclose the fire within... | 05/19/1992 |
| 5104012 | Flexible tube attachable to a spout having a finger tab to maintain attachment A dispensing device for helping to pour the contents of a first container into a second container without spillage. The device includes a flexible tube having an opened first end for being positioned on the pour spout of the first container, having an ope... | 04/14/1992 |
| 5105349 | Motorized chandelier lift system A motorized apparatus to raise and lower a ceiling light fixture, such as a chandelier, to facilitate cleaning and bulb changing. A hoist mechanism, mounted above the ceiling between two joists, includes a drive motor with a drive shaft, and a take-up sha... | 04/14/1992 |
| 5105179 | Electronic display license plate An electronic display license plate and message center for use on automobiles and other vehicles. The electronic display license plate is a replacement for the standard metal license plate, and may be constructed as a part of the car, such as an integral ... | 04/14/1992 |
| 5102190 | Portable sun shade A portable sun shade for being mounted on a seat. The portable sun shade includes a canopy; a frame for supporting the canopy above the seat, the frame includes an elongated first frame member having a first end and a second end, an elongated second frame... | 04/07/1992 |
| 5092363 | Quick and dry coupling A quick and dry coupling for coupling together devices such as fluid lines. One embodiment of the coupling includes a pair of heads in which is provided mating members having mating surfaces for moving the mating members in opposite directions away from o... | 03/03/1992 |
| 5085002 | Portable art object wall decoration A portable art object wall decoration. The art object wall decoration includes a frame for hanging on the wall and which can be moved as desired. There is a mat which is attached to the frame, and a container which is supported from the frame on the front... | 02/04/1992 |
| 5085164 | Swim platform for a pontoon boat A platform assembly for use with a pontoon boat. The platform assembly includes a substantially flat platform member for allowing users to stand, sit, and/or step thereon. The platform assembly includes track structure for mounting the platform member to ... | 02/04/1992 |
| 5086464 | Telephone headset for the hearing impaired An adjustable telephone headset for the hearing impaired comprising a left and a right ear piece, a speaker within each ear piece, an input device, such as a microphone or magnetic induction pickup within one of the ear pieces, and an amplifier connected ... | 02/04/1992 |
| 5082090 | Stacking mast for a lift truck A stacking mast for being attached to a lift truck and for moving a load between a negative position and a positive position. The stacking mast includes an elongated first mast, the first mast including a lower end for being attached to the lift truck and... | 01/21/1992 |
| 5076579 | Folding exercise device A foldable exercise device including a board member having a planar top surface for supporting the user in any of several exercising positions; first and second rollers for runningly ridably supporting the board member in a horizontal disposition; structu... | 12/31/1991 |
| 5076202 | Automatic car waxer An apparatus for waxing vehicles for use in conjunction with commercial "car wash" operations. Vehicles are transported by a chain driven conveyor mechanism through a wax application station, passed to a second conveyor mechanism for movement through a dr... | 12/31/1991 |
| 5075910 | Inflatable headboard A headboard including an inflatable body member for being positioned adjacent the head of the bed, and mounting structure for mounting the inflatable body member adjacent the head of the bed.... | 12/31/1991 |
| 5063621 | Bath chair A bath chair for supporting a bather relative to a supply of water. The bath chair includes a body having a seat portion for supporting the bather's buttocks, and having a back portion for supporting the bather's back. The body preferably has a plurality ... | 11/12/1991 |
| 5060626 | Compound bow draw sensor A sensor for use with a compound archery bow of the type including a body, a bowstring for being drawn by an archer, and a cam for connecting the bowstring to the body. The sensor includes a switch for being closed by the cam in response to the drawing of... | 10/29/1991 |
| 5060807 | Disposable bowl dispenser A device for storing and dispensing a number of disposable bowls comprising a disk shaped base with retaining arms and support members. Said retaining arms act to keep said disposable bowls horizontally aligned with said base and have bends at the top of ... | 10/29/1991 |
| 5052649 | Drink holder adapter A beverage holder adapter for placement into a beverage receptacle and for receiving a beverage container, such as a beer or carbonated drink can, held within an insulated beverage holder. The adapter includes a cylindrical upper portion with an inner dia... | 10/01/1991 |
| 5050629 | Earthquake shutoff valve A valve for controlling the passage of fluid between a first conduit and a second conduit. A body has a first port for being coupled to the first conduit, has a second port for being coupled to the second conduit, and has a valve chamber joining the first... | 09/24/1991 |
| 5048778 | Trash bag apparatus An apparatus for holding a trash bag. The apparatus includes base structure having an opening therethrough for allowing the body portion of the trash bag to extend therethrough and having a lip adjacent the opening for allowing the opened end of the body ... | 09/17/1991 |
| 5045836 | Vehicle anti-freeze monitor A vehicle anti-freeze monitor for monitoring the capability of the vehicle's coolant mixture in the cooling system of the vehicle to resist freezing. The monitor includes a light emitting diode, a reed switch for coupling the indicator to a source of elec... | 09/03/1991 |
| 5039041 | Device for holding a bag A device for being attached to a support member and for holding a sandwich-type bag with the mouth of the bag held open to allow trash and the like to be easily inserted into the bag. The device includes a base member for being attached to the support mem... | 08/13/1991 |
| 5039136 | Stabilizing fitting for gases and fluids The ability to stabilize pipes between the framing and finishing stages of construction projects is the primary function of my invention. The fitting is capable of being held in place by nails or screws passing through special appendage holes arranged to ... | 08/13/1991 |
| 5039106 | Golf ball apparatus for training, practice and entertainment A golf ball apparatus including a golf ball having an aperture therethrough, and a drag for being attached to the golf ball and for restricting the distance the golf ball will travel after being hit. The drag includes an elongated, flexible cord having a ... | 08/13/1991 |
| 5029631 | Process for bonding a mixture of substances together A process for bonding a mixture of substances together. The process includes the steps of forming a mixture of substances; heating the mixture of substances until the mixture is molten; pouring the molten mixture of substances into a mold; and forming a m... | 07/09/1991 |
| 5024008 | Footwear device for hunters Footwear for use by hunters. The footwear includes a rubber overshoe to be worn over a boot worn by the hunter with the sole of the boot being covered by the overshoe whereby the boot will not come in contact with the ground as the hunter walks. A scent d... | 06/18/1991 |
| 5020240 | Fabric softener dispenser A fabric softener dispenser for being mounted within the drying chamber of a clothes dryer. The dispenser has a housing for receiving a replaceable solid fabric softener cartridge. Adjustment structure is provided to allow the solid fabric softener cartri... | 06/04/1991 |
| 5018304 | Door operator An operator for moving a door between an open position and a closed position. The operator includes linkage for being attached to the door; a motor assembly having a drive shaft; and a drive train for coupling the drive shaft of the motor assembly to the ... | 05/28/1991 |
| 5014843 | Cam operated fixture for a conveyor A fixture for a conveyor that is cam operated. The fixture is mounted on a carrier and has at least one movably mounted product support arm for supporting the product as the fixture is moved past a work station for work, such as paint spraying, to be perf... | 05/14/1991 |
| 5014458 | Fishing pole holder A fishing pole holder for holding a fishing pole to a boat. The fishing pole holder includes base structure for being fixedly and permanently attached to the boat; body structure for being slidably and removably attached to the base structure; and fishing... | 05/14/1991 |
| 5009226 | Mechanical resuscitator A resuscitator for conveying gas to a patient's lungs. The resuscitator includes a pump having a cavity and including movable structure movable between a first position and a second position for forcing gas from the cavity of the pump when moved from the ... | 04/23/1991 |
| 5009287 | Vehicle lift A lift for vehicles in service stations, repair centers and the like to lift such vehicles for the repair and servicing thereof. The vehicle lift includes a support for engaging the vehicle to be lifted, a power cylinder for lifting, supporting and loweri... | 04/23/1991 |
| 5009180 | Hull hole closure for an oil tanker A hull hole closure apparatus for use with an oil tanker having a hull hole, to seal the hull hole. A first embodiment of the hull hole closure consists of a flexible, waterproof, rectangular sheet, having forward and aft longitudinal reinforcing straps o... | 04/23/1991 |
| 5007836 | Groove lock dental bridge attachment and method An artificial dental appliance for bridging the distance between two adjacent teeth. The appliance includes a bridge for filling the space between the two adjacent teeth and retaining structure for securing the bridge to the two adjacent teeth. The retain... | 04/16/1991 |
| 5004012 | Automatic water shut-off apparatus for building protection An automatic water shut-off apparatus for connection to an intrusion alarm system, such as a burglar alarm, that provides for protection of a building from water damage while the alarm is armed. A valve, which controls water flow into the building, is clo... | 04/02/1991 |
| 5002256 | Lifting and supporting device A device for lifting and supporting a wheeled vehicle. The device includes jack structure for lifting the vehicle from a lowered position to a raised position; support structure for supporting the vehicle in the raised position; and connecting structure f... | 03/26/1991 |
