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 |
| 4186772 | Eductor-mixer system An eductor-mixer system in which pressurized working fluid is discharged through a nozzle as a concentric, high speed jet flowing past the end of an inlet tube into a mixing chamber for generating a vacuum thereby to positively draw a pressure transportab... | 02/05/1980 |
| 4184724 | Hospital furniture An article of hospital furniture having bottom, top and side walls and a closure for closing an opening at the front of the article, the closure being adapted to be pulled open from a closed position. The closure comprises a front panel and an elongate fl... | 01/22/1980 |
| 4183124 | Method of and apparatus for fabricating spiral wrapped cartridge cases Method of and apparatus for fabricating spiral wrapped cartridge cases or the like, in which an expandable bladder positioned within the interior of the cartridge case is initially expanded by application of hydraulic fluid at relatively low hydraulic pre... | 01/15/1980 |
| 4182386 | Closed system and container for dust free loading and unloading of powdered materials A closed system for filling a container with a load of powdered, granular, or other dry fluent material and for unloading the load substantially without the emission of dust to the atmosphere. The container has an opening in its top which may be sealingly... | 01/08/1980 |
| 4181066 | Expansible chamber motor An air motor comprising a cylinder, a piston, and a valve mechanism for controlling the supply and exhaust of air to and from opposite ends of the cylinder, the valve mechanism comprising a D-valve and an actuator for the D-valve operable by the pressure ... | 01/01/1980 |
| 4181085 | Automatic sewing apparatus Apparatus for automatically sewing workpieces along edges of each workpiece extending in different directions, in which a workpiece is automatically turned when it has been stitched along one edge for stitching it along the next edge, by blowing air on th... | 01/01/1980 |
| 4179987 | Safety apparatus for a bacon press or the like Safety apparatus for a bacon press or the like including a transparent safety door movable vertically between a raised retracted position in which a slab of bacon or other work to be pressed may be readily placed in the press and in which a pressed slab o... | 12/25/1979 |
| 4174981 | Method of manufacturing springs, including the production of rod therefor The method of manufacturing coiled springs from hot-rolled steel rod (as distinguished from drawn wire) wherein round steel rod is formed by hot rolling with the gauge of the rod within a tolerance of &#b1;0.010 inch and the rod not out of round more than... | 11/20/1979 |
| 4174532 | Portable lighting fixture A portable lighting fixture for use with a patio umbrella and the like in which the umbrella is supported by a center pole having struts extending outwardly therefrom to the underside of the umbrella when the umbrella is in a raised position. A base has a... | 11/13/1979 |
| 4173329 | Jack for positioning and supporting a machine A jack for positioning and supporting a large industrial machine or other object on its foundation. The jack comprises a base to be supported on the foundation, a support member having a cylinder bore therein, and a ball mounted on the base, the lower end... | 11/06/1979 |
| 4171076 | Molds for manufacturing pants Methods of manufacturing pants from heat-settable textile material, with molding of the material for a good fit, in which two flat tubes of such material are assembled, seamed to form a crotch seam, applied to a mold shaped to impart appropriate form to t... | 10/16/1979 |
| 4170682 | Treatment of nylon fabric for wettability and product thereof The treatment of nylon fabric for wettability, with the treated fabric capable of withstanding a substantial number of launderings without undue loss of wettability, involving exhaustion of a condensation product of ethylene oxide with an aliphatic primar... | 10/09/1979 |
| 4168778 | Dispensing package A box containing a roll of material such as a rope of tubular plastic netting, the roll having a passage extending through it axially. Each end of the box has a triangular aperture through it. When the roll rests on a first side of the box the apertures l... | 09/25/1979 |
| 4168749 | Hand-propelled garden cultivator A hand-propelled cultivator implement having a frame with a wheel journaled on the front of the frame for rollingly supporting the implement as it is moved over the ground. A cage is provided on the frame for rigidly mounting a selected cultivating tool o... | 09/25/1979 |
| 4166241 | Battery jumpering apparatus Apparatus for jumpering a first battery to a second battery. First and second jumper cables are connected to terminals of the batteries, each jumper cable being connected between corresponding polarity battery terminals to form an electrical path therebet... | 08/28/1979 |
| 4164992 | Dispensing unit A unit for dispensing chilled cans and bottles of beverage on a first-in, first-out basis. The unit comprises a walk-in cooler having a ceiling, a floor, and front, rear and side walls, the front wall having an offset portion extending generally horizonta... | 08/21/1979 |
| 4162857 | Apparatus for stirring grain Apparatus for stirring a mass of grain stored in a bin, the bin having a cylindrical wall, a roof and a track extending in a circle around the inside of the wall in a horizontal plane above the level of the grain in the bin. The apparatus comprises a beam... | 07/31/1979 |
| 4161564 | Coating formulation, method, and coated substrate A formulation which may be applied to a substrate to produce a flexible, high temperature, thermally stable and color stable film thereon. The formulation comprises a poly(1,3-imidazolidine-2,4,5-trione) polymer, a free radical scavenger in an amount suff... | 07/17/1979 |
| 4160015 | 2,4,6-Triiodobenzoic acid derivatives and their use as x-ray contrast agents 5-Gluconamido-2,4,6-triiodo-N-methylisophthalamic acid, 3-acetamido-2,4,6-triiodo-5-trishydroxymethylacetamido-benzoic acid, related compounds and salts and esters thereof are useful as x-ray contrast agents. The corresponding acyl halides are useful as ... | 07/03/1979 |
| 4158242 | Shoulder pad A shoulder pad for football players comprising a chestplate portion, a backplate portion and a pair of arches integrally connecting the plate portions, the arches being laterally spaced to provide an opening for the neck of the wearer with the spacing suc... | 06/19/1979 |
| 4158225 | Rotary dynamoelectric machine having high-resistance rotor A rotary dynamoelectric machine having a generally annular polyphase stator with a predetermined number of wound poles and an induction rotor. The rotor has a cylindrical laminated ferromagnetic core positioned within the stator for rotation about a centr... | 06/12/1979 |
| 4157719 | Method and apparatus for ultrasonic sealing and cutting, and tabs produced thereby A method of and apparatus for ultrasonically sealing and cutting workpieces wherein the workpiece is clamped between an anvil and an ultrasonic horn for being sealed and cut adjacent the seal by pressing a cutting edge into the workpiece from the anvil si... | 06/12/1979 |
| 4154196 | Animal metabolism unit An animal metabolism unit, for encaging a test animal and collecting and separating matter excreted by the animal, comprising a cage having a foraminous bottom, a funnel below the cage for receiving excreted matter passing through the bottom, a deflector ... | 05/15/1979 |
| 4154166 | Label printing and applying apparatus A hand-held label printing and applying gun for large, legible special-purpose labels. The gun has a printing head in which a printing mat is removably held in place by a magnet so as to facilitate quick change of printing mats.... | 05/15/1979 |
| 4152986 | Method and apparatus for printing raised ink images A method of printing a raised ink image on a substrate for use as a hectographic or spirit duplicating master or the like involving forming a printing plate having a raised image area thereon, the latter having a plurality of regularly spaced, screen-like... | 05/08/1979 |
| 4152790 | Shower enclosure A shower enclosure for confining shower spray to a shower area defined in part by a bathtub or the like and walls at opposite ends of the bathtub. The enclosure is installed between the walls above one side of the bathtub and comprises a rectangular frame... | 05/08/1979 |
| 4149755 | Fluidizable material handling apparatus An improved material handling apparatus or container for transporting, storing, and unloading a load of powder, granular, particulate or other fluidizable material. The container has a pallet base which includes a discharge opening and an inclined load su... | 04/17/1979 |
| 4149691 | Motor-mounting assembly An assembly for mounting an outboard motor on a boat, such as at the stern thereof. The assembly comprises an arm extending aft from the stern and having a block at its aft end for mounting the outboard motor at the stern, a guide for axially guiding the ... | 04/17/1979 |
| 4148471 | Apparatus for fabricating wood structures Apparatus for fabricating flat floor trusses or other wood structures, the apparatus including a number of wood member support frames securable together in end-to-end abutting relation with each of the frames having a tongue at one end thereof and a groov... | 04/10/1979 |
| 4146437 | Method for evaluating a system for electrodeposition of metals A method is provided for evaluating an unknown electrolytic system comprising an electrolytic solution and electrodes for electrodeposition of metal with respect to determining the performance characteristics of the electrolytic solution, detection of imp... | 03/27/1979 |
| 4146074 | Fastener A fastener for securing parts to metal framing such as channel framing having side flanges with inwardly turned, hook-shaped lips defining a slot therebetween. The fastener comprises an elongate body or nut having inside and outside faces, opposite sides ... | 03/27/1979 |
| 4144575 | Apparatus for dispensing fabric from a bolt Apparatus for dispensing fabric from a bolt in which the bolt is cradled in a loop of an endless belt and unwound by driving the belt. The length of fabric unwound is accurately measured by measuring the distance of belt travel, and provision is made for ... | 03/13/1979 |
| 4140298 | Post and rail fence construction A post and rail fence construction comprising a tubular steel post adapted to be mounted in an upright vertical position and a steel rail generally of channel section adapted to extend generally horizontally from the post. The post has at least one hole t... | 02/20/1979 |
| 4138174 | Vendor having sliding trays and latches therefor A vendor having sliding trays or carriers in a cabinet, a latch being pivotably mounted on one side of the cabinet adjacent the front end of one of a pair of channels in which channels the carrier is slidably mounted by means of two series of rollers, the... | 02/06/1979 |
| 4136501 | Elastic plastic netting, and pallet load wrapping therewith Plastic netting, particularly for wrapping pallet loads, securely to hold the load on the pallet without heat-shrinking of the netting and providing for ventilation of the load, i.e., egress of air from the load or ingress of air to the load; a method of ... | 01/30/1979 |
| 4135252 | Shoulder pad A shoulder pad for football players comprising a chestplate portion, a backplate portion and a pair of arches integrally connecting the plate portions, the arches being laterally spaced to provide an opening for the neck of the wearer with the spacing suc... | 01/23/1979 |
| 4135919 | Alloy resistant to sulfuric acid corrosion An air-meltable, castable, workable, weldable alloy resistant to corrosion in sulfuric acid over a wide range of acid strengths. The alloy consists essentially of between about 26.00 and about 29.13% by weight nickel, between about 23.32 and about 28.28% ... | 01/23/1979 |
| 4135151 | Apparatus for detecting wet and icy surface conditions Apparatus for detecting wet and icy conditions on the surface of a pathway. A block of electrically insulative material is embedded in a pathway with the top surface of the block being substantially flush with the surface of the pathway and exposed to atm... | 01/16/1979 |
| 4135077 | Laser bread browning apparatus Apparatus for heating the outer surface of an object such as a loaf of bread. The object is conveyed through a heating chamber which has a plurality of apertures therein. A plurality of laser beams of a wavelength that is readily absorbed by the outer sur... | 01/16/1979 |
| 4133531 | Portable device for use in playing step-ball A portable device for use in playing step-ball or the like comprising a plurality of steps arranged in a flight, each step having a front face and a top face which a ball may strike. First and second panels form side enclosures for the flight of steps and... | 01/09/1979 |
