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 |
| 5172270 | Invertible display with a kaleidoscope A kaleidoscope utilizing birefringent material in the form of shaped pieces in a liquid with the pieces passing between sheets of polarizing material where the container holding the pieces and liquid is in the form of a tube or tubes, or is flat and elong... | 12/15/1992 |
| 5161762 | Vehicle cargo clamp A cargo clamp for a van, the van having cargo space defined by a floor, upwardly extending sidewalls and a roof. The cargo clamp comprises a transverse track that extends between the sidewalls below the roof and is supported below the roof and is held in ... | 11/10/1992 |
| 5082404 | Vehicle cargo clamp A cargo clamp for a van, the van having cargo space defined by a floor, upwardly extending sidewalls and a roof. The cargo clamp comprises a transverse track that extends between the sidewalls below the roof and is supported below the roof and is held in ... | 01/21/1992 |
| 4775191 | Hydraulic brake system for rail vehicles A hydraulic brake system for vehicles, particularly light rail vehicles, includes at least one brake actuator for engaging the brake by means of a group of springs and disengaging the brake by hydraulic pressure. The system comprises an electric drive mot... | 10/04/1988 |
| 4616688 | Simple or rotating traversers for vertical window blinds A device to control and protect the operating mechanisms of vertical slats for window blinds, contained in a box (1) in which there is a pinion consisting of outer (4) and inner (3) members. The outer member (4) has a partial set of vertical gear teeth an... | 10/14/1986 |
| 4608729 | Lockable steering structure having a vertically slidable locking block A lockable steering structure suitable for the front wheels of a baby cart for children including a grooved block slideable upon T shaped rails attached to both a support frame and a wheel mount so that in a locked position the block engages both rails, s... | 09/02/1986 |
| 4607653 | Collapsible umbrella with circular rim A round rim umbrella where the rim members and their connecting hinges form a hoop without pointed projections with a center shaft construction involving a center rod within a hollow shaft and a sliding member fixed to the center rod through a slot in the... | 08/26/1986 |
| 4601301 | Umbrella with lazy tong structure An umbrella without a center post supporting structure with a continuous lazy tong structure around the periphery of the canopy with the lazy tong structure connected on one side along its periphery to a supporting arm pivotally connected at its opposite ... | 07/22/1986 |
| 4601439 | Magnetic brake for a fishing reel A magnetic brake for braking the line spool of a fishing reel with magnetic braking automatically adjusted in dependence upon the speed of rotation of the line spool. A magnetic support for magnets is rotatable in one direction by the reactive force of th... | 07/22/1986 |
| 4594886 | Multipurpose timing light A multipurpose timing light which comprises a timing light, a tachometer and a flashlight housed in a gun shaped plastic shell which in appearance is similar to the prevailing timing gun and in addition has a flashlight underneath the gun barrel and a tac... | 06/17/1986 |
| 4593866 | Magnetic brake for braking the line spool of a fishing reel A fishing reel comprising a frame, a line spool rotatably and releasably mounted in the frame and an induction-type magnetic brake for braking the fishing reel during casting is disclosed, in which a number of permanent magnets are mounted on a support wh... | 06/10/1986 |
| 4592484 | Seed-sowing element and drill for experimental plots A seed-sowing element intended to be mounted on a drill of the pneumatic type having a turbine, a general low pressure conduit circuit and a seed-sowing element, with the seed-sowing element comprising a low pressure assembly for recovering excess seeds i... | 06/03/1986 |
| 4587958 | Ultrasonic surgical device An ultrasonic oscillation device adapted for use in surgical operations includes, for the purpose of producing ultrasonic vibrations of an amplitude and power capable of exhibiting a satisfactory tissue shattering capacity in a wide field of living tissue... | 05/13/1986 |
| 4586588 | Chain saw safety-brake system A chain saw safety-brake system including a pivotable member, and a screw located in side-by-side relation to the pivotable member and having a brake band connected thereto at one end. The screw can be operated from outside of the chain saw to adjust the ... | 05/06/1986 |
| 4586693 | Shut-off apparatus The apparatus comprises a disk shaped shut-off flap located in the passage of a main body. The shut-off flap is mounted such to a rocking shaft that the flap can be lifted off its seat during one phase of movement of the rocking shaft and may be rotated i... | 05/06/1986 |
| 4583699 | Level winding fishing reel A level-wind mechanism for fishing reels using a line-laying element having two parts normally reciprocable by means of a slide operated by a hand crank via a transmission. The two parts are disengageable and reengageable relative to said slide by rotatio... | 04/22/1986 |
| 4581931 | Differential level-monitoring float device A high-sensitivity device for measuring the mutual level differentials among a certain number of reading locations, the device comprising a plurality of containers, one for each reading location, mutually connected at the bottom ends by a piping opening i... | 04/15/1986 |
| 4580742 | Magnetic brake for braking the line spool of a fishing reel An induction-type magnetic brake for braking the line of a fishing reel during casting is disclosed, in which a number of permanent magnets are supported by an annular support which is carried in a coaxial position relative to the axis of rotation of the ... | 04/08/1986 |
| 4579296 | Apparatus for the disengagement and reengagement of the line spool in a fishing reel The disclosure relates to an apparatus for the disengagement of the line spool in relation to a transmission driven by a crank by means of a manually actuable operating member, and for automatic reengagement of the line spool and the transmission by means... | 04/01/1986 |
| 4577416 | Tracing sensor A sensor pin carrier (34) is disposed in a housing (20) and rests on a support member (26) by way of a bearing which is arranged all around a central longitudinal axis (40), and the sensor pin carrier is designed for securing at least one sensor pin (38).... | 03/25/1986 |
| 4576540 | Device for compacting contents of high capacity semitrailer body A compacting device located forwardly of a body, especially a close body of a high capacity semitrailer which received by gravity, through an opening formed in a forward upper part of the body, mainly household or industrial waste products as well as any ... | 03/18/1986 |
| 4575303 | Device for handling and moving cylindrical units A device for handling and moving generally cylindrical loads, such as cable reels, rolls of paper, sheet metal, and the like, comprising a frame supported by wheels or the like and provided with vertically pivotable, laterally movable telescoping arms for... | 03/11/1986 |
| 4573247 | Artificial tree limb maker machine A machine for making artificial limbs as for a Christmas tree where twisted wires having simulated needles attached are fed by a reciprocating transverse action to a pair of cutters which cut the wires to predetermined lengths while at the same time a pai... | 03/04/1986 |
| 4571833 | Sawdust discharge port Disclosed is a sawdust discharge port which is arranged such that a side wall of a cover member covering a body frame of a chain saw and opened at its lower end and forming one of the constituent elements of the discharge port has a substantially flat out... | 02/25/1986 |
| 4569244 | Control lever with automatic return to original position A device which, when manually operated, will automatically return to an original position wherein a manually-operated control lever rotates at least one shaft having an arm mounted on the end of the shaft, and with a roll at the other end of the arm which... | 02/11/1986 |
| 4563822 | Level device for masonry work A level device is designed to determine different levelling points in building work to automatically set certain parts, such as the suspension systems for false ceilings when this apparatus is fitted with a bolt-driving attachment, comprising a flexible t... | 01/14/1986 |
| 4563980 | Marking device for use with an animal marking harness An improved marking device for use with an animal harness to provide a means for identifying mated animals by color code. A replaceable marking device such as a marker block of colored crayon is secured to the animal harness by a snap fitted retaining mea... | 01/14/1986 |
| 4563928 | Blade guide for saw blades A blade guide for saw blades consists of a number of small cemented carbide plates which are moulded at intervals onto a base plate of steel or the like by means of a metal, such as brass or bronze, or with a plastic material, which is considerably softer... | 01/14/1986 |
| 4562883 | Air conditioning method and installation Conditioned air (i.e. cooled or heated air) is supplied to spaces in a building structure via guides and air mains. The conditioned air is guided into the spaces directly from the guides, or via plenum chambers and transfer openings, or via both routes si... | 01/07/1986 |
| 4561596 | Apparatus for spreading granular material An apparatus for spreading granular material, such as fertilizer, has a carriage (1) on which there is mounted a vertical conveyer (5, 6) which comprises a vertical cylindrical housing (5) and a conveyer screw (6) rotatably mounted therein. The screw (6) ... | 12/31/1985 |
| 4561831 | Rotary hydraulic axially slidable vane device of variable capacity A rotary hydraulic device of the displacement pump type having coaxial rotor and stator and vanes axially slidable in the rotor, the stator comprising at least one bottom surface formed with a variable number of deformations having rectilinear zones suita... | 12/31/1985 |
| 4558825 | Agitator mill An agitator mill comprising a grinding vessel (3) which encloses a grinding area, a storage vessel (37) which contains grinding bodies (28), and a device (8) for feeding grinding bodies (28) from the storage vessel (37) into the grinding area. This device... | 12/17/1985 |
| 4557166 | Automatic multiple workpiece turning machine A work turret is rotated by steps around a central axis with a first group of a multiplicity of clamping devices formed to clamp one side of a workpiece each facing a charging device for feeding in workpieces, and a second group of clamping devices on the... | 12/10/1985 |
| 4557311 | Protective covering A shade serving to shelter from light, wind, and vision is useful especially at balconies of buildings. The shade comprises a web made of foldable, weatherproof material and adapted to be stretched over an opening to be shielded in a wall or between walls... | 12/10/1985 |
| 4555819 | Holder for cleaning and/or colorant products intended to be hooked from the edge of a WC bowl A holder comprising a sealed container provided to receive a water-soluble active, solid composition and to protect it against the direct erosion by water susceptible to penetrate in the container. The holder including a basin having a predetermined volum... | 12/03/1985 |
| 4554882 | Fender system Fender system comprising at least one absorbing body of elastomer material, which can be secured directly or indirectly to a quay or a jetty, and a front plate which is parallel in essentially a vertical plane to the plane of the quay or the jetty, and is... | 11/26/1985 |
| 4555010 | Junction diverter for a transport system A junction diverter with a supporting surface disposed below a main conveyor path when in an inoperative position can be lifted above the main conveyor path to an inclined position in which it is flush with one or the other of a pair of lateral conveyor p... | 11/26/1985 |
| 4552105 | Fuel pipe joint A fuel pipe joint for connecting fuel pipes through which fuel is supplied from a fuel tank to an internal combustion engine mounted on a portable power-driven machine such as a chain saw. The fuel pipe joint has a main body made of a transparent syntheti... | 11/12/1985 |
| 4548169 | Carburetor chamber Disclosed is a carburetor chamber arranged such that its casing having an opening at the top is fixed and this casing is provided, at its interior, with a carburetor and, at its bottom wall, with a path of feeding under pressure chain lubricating oil and,... | 10/22/1985 |
| 4538448 | Method and device for determining of explosivity rate of gaseous medium A method and a device for determining explosivity rate of a gaseous medium with a detecting filament which is heated in said medium by an electric current flowing therethrough. Said detecting filament is ignited through connection to a power supply and po... | 09/03/1985 |
