Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 4796302 | Finger and thumb protector A finger and thumb protector is provided and consists of a pair of sheaths pivotly hinged towards each other. The sheaths have depressions on inner sides thereof to grip a nail thus allowing a person to hammer the nail with the sheaths cushioning the blow... | 01/10/1989 |
| 4796303 | Knee protector pad This knee protector pad is particularly adapted for use by volleyball players and the like and includes an elastic sleeve enclosing the knee and adjacent portions of the leg of the wearer. A flat elastomeric foam pad is completely enclosed in a knit sleev... | 01/10/1989 |
| 4796304 | Ventilated hunting clothing A hunting apron or vest which is comprised of a base material which is cut and fashioned into the general overall shape of the apron or vest, to which, over a substantial majority of the outer surface, is loosely attached a net-like mesh material. The pur... | 01/10/1989 |
| 4796305 | Garment A garment has a collar/lapel which is produced by folding a part of the boundary area between a body piece and a flyback. A first expansible and contractible interfacing member is fitted to an area of the body which becomes the rear side of the collar/lap... | 01/10/1989 |
| 4796306 | Readily adjustable grip enhancing gripping glove A gripping glove having a plurality of elastic straps which are readily positionable to impose a selected gripping force to the fingers of a user to improve the user's grip. The gripping glove utilizes elastic straps selectively positionable by use of a r... | 01/10/1989 |
| 4796307 | Ear protector An ear protector for protecting the ear against impact from a ball during the playing of racquet and handball sports, the protector including a ventilated cup-like cap member carried by a suspension means for adjustable engagement over the ear, and a clip... | 01/10/1989 |
| 4796308 | Method for retaining goggles on helmet A pair of strap retainers are mounted on opposite sides of a safety helmet for securing safety goggles in a storage position. An open slot is formed in each retainer thereby defining a hook about which the goggles strap is retained. The goggles along with... | 01/10/1989 |
| 4796309 | Protective helmet retained on the rear of wearer's head The helmet may be secured to the wearer's head by an armor the two ends (14-15) of the pair of "V" shaped branches of which are anchored to two opposite points on the rear lateral part of the helmet to form, substantially an arched element apt to engage w... | 01/10/1989 |
| 4796310 | Bathtub drain valve control and overflow plate A bathtub drain valve control arrangement includes an overflow cover movably mounted in a recessed pocket of a substantially vertical bathtub wall so as to cover the overflow opening in that wall. The overflow plate is adapted to move between open and clo... | 01/10/1989 |
| 4796311 | Chemical and/or radiation decontamination An intake facility and method for use with the emergency room of a hospital for processing the victims of a chemical disaster who may have suffered chemical contamination. Separate rooms are provided for surface removal of contamination in a way which per... | 01/10/1989 |
| 4796312 | Bathtub with access door in the side thereof A bath tub (13) having side walls (15, 16), a rear wall (14), an entrance and a door (20) for closing the entrance, the entrance having a seal (39) engageable with a chamfered inner surface (41) of the door when the door is closed and water pressure is ex... | 01/10/1989 |
| 4796313 | Invalid transfer arrangement Apparatus used in conjunction with a bed and having rollers and a transfer sheet to transport a patient over the bed and partially onto a horizontal seat of a wheelchair. The patient is then raised to a normal seated position, without requiring any effort... | 01/10/1989 |
| 4796314 | Portable infant furniture There is disclosed a folding bed or diaper changing platform for an infant which has a pair of cross frame members pivotally interconnected to move between folded and unfolded positions. Each cross member and distally supports a longitudinal foot that ext... | 01/10/1989 |
| 4796315 | Rotationally contoured lumbar cushion A rotationally contoured lumbar cushion (10) is disclosed which may be securely strapped in a lumbar cradling position about the lumbar area of a person. The lumbar cushion cradles the lumbar area of the spine in a sitting position or the supine of bedres... | 01/10/1989 |
| 4796316 | Mattress with aeration cavities The invention provides a mattress with aeration cavities, consisting of a layer of flexible material with a lower face (3) by which the mattress may bear on an undermattress and an upper face (4) for receiving the body of a person, each face being defined... | 01/10/1989 |
| 4796317 | Dust ruffles for a bed A set of bed ruffles, preferably made of cloth, which has along its upper, unruffled border, i.e., perimeter, a mesh or screen, is disclosed. The mesh is, preferably, made of a durable, but flexible plastic. The mesh affixed to the ruffles is to be releas... | 01/10/1989 |
| 4796318 | Fisherman's pliers A pair of fisherman's pliers for connecting a lead fishing weight to a fishing line comprises a pair of pliers with a pair of handles pivotally connected to a pair of elongated and tapered jaws such that the jaws are brought together as the handles are br... | 01/10/1989 |
| 4796319 | Combination screw-tapping and screwdriving tool A drill accessory kit for mounting screw-type fasteners is comprised of several drill bit holders and a screwdriving attachment. The bit holder engages a common twist drill bit in the chuck of a drill and allows one to drill a pilot hole to a desired dept... | 01/10/1989 |
| 4796320 | Method of dyeing and hydro-extracting collectively yarn cheeses and apparatus therefor Mass treatment system for dyeing and hydro-extracting yarn cheeses sequentially and automatically which comprises a combination of: a circulation rail resting thereon a plurality of mobile trucks which are adapted to mount thereon cheese spindles and conv... | 01/10/1989 |
| 4796321 | Portable electrical brush A portable electrical brush having a water supply and a liquid additive container having a valve controlled outlet is installed on the casing of the brush assembly. The attachment is provided with a water pipe having a valve and an outlet device, which is... | 01/10/1989 |
| 4796322 | Rear dumping lawn sweeper with folding wind apron A rear dumping brush-type lawn sweeper for attachment to a garden tractor includes a hamper assembly which is mounted on a support frame for pivotal movement. The support frame is carried on the main frame of the brush housing. The hamper assembly carries... | 01/10/1989 |
| 4796323 | Electric toothbrush Electric toothbrush includes a hollow handle and a rotary brush connected to the handle. A gravity-induced movement responsive switch, such as mercury switch, is located within the handle, and a hand-operated switch is located on the outer surface of the ... | 01/10/1989 |
| 4796324 | Broom or brush with hinged handle The handle of the broom is canted in relation to its axis of rotation about the broomhead back through a given angle, and connected to the back by way of a hinge the axis of which is inclined through an angle, relative to the longitudinal axis of the back... | 01/10/1989 |
| 4796325 | Angularly adjustable double headed toothbrush A toothbrush has a brush portion pivotally connected to the handle. The head portion of the toothbrush may be provided with a pair of opposed facing brushes for simultaneously brushing both sides of a tooth. Three different pivotal mechanisms may be utili... | 01/10/1989 |
| 4796326 | Device for connecting a wiping element to the superstructure of a wiper blade A device is provided for securing a wiping element to the superstructure of a wiper blade. Each of two backing strips (13) of the wiping element (2a) is provided, at its exterior longitudinal edge, with a flattened area (13a, 13b) which laterally projects... | 01/10/1989 |
| 4796327 | Apparatus for picking up dog excrement In an apparatus for picking up dog excrement in conjuction with a street sweeper, which picks up by suction over a suction duct, a separating container for the dog excrement picked up is connected ahead of the dirt container of the street sweeper, the two... | 01/10/1989 |
| 4796328 | Eraser An eraser capable of erasing characters and the like written on paper with a ball-point pen, fountain pen, typewriter, word processor, color pencil or the like. The eraser has an integral structure composed of plural types of eraser pieces having differen... | 01/10/1989 |
| 4796329 | Faucet handle A faucet handle is disclosed having a light-transmissive upper portion (10) and an opaque lower portion (16) which is connected to the handle hardware. In order to prevent viewing of the lower portion and the hardware through the light-transmissive upper ... | 01/10/1989 |
| 4796330 | Hinge mask A hinge mask product is provided, which consists of two substantially rectangular parts, with one of the parts having a tab for removal of this one part. One part of the mask is for the face of a hinge positioned and coupled between door and a door frame.... | 01/10/1989 |
| 4796331 | Hinge for roof window A hinge primarily for a roof window with a pivotally opening sash comprises a body to be fixed to the frame of the window, a support member pivoted to the body and arranged to be secured to the sash, a stay member pivoted to the support member spaced from... | 01/10/1989 |
| 4796332 | Constricting and fastening apparatus This invention relates to an apparatus for constricting and fastening flexible tubular material along its longitudinal axis having particular utility in the food processing industry such as sausage casings. The apparatus circumferentially constricts and g... | 01/10/1989 |
| 4796333 | Shellfish shucking machine A shellfish shucking machine and more specifically a bivalve opening device for safely shucking or opening bivalve shellfish such as oysters, clams and the like. The shucking machine includes a base structure, an upright support structure including a hand... | 01/10/1989 |
| 4796334 | Treatment of cotton The invention relates to a process for rendering harmless sticky material adhering to cotton fibers, termed "honeydew". According to the process the cotton is heated for a brief period of time to a temperature adequate to render said honeydew hard and bri... | 01/10/1989 |
| 4796335 | Method and apparatus for opening fiber bales A bale opener has an opening device arranged for a horizontal back-and-forth travel above a row of fiber bales. The opening device includes two parallel-arranged and horizontally oriented opening rollers provided with teeth. The opening rollers are spaced... | 01/10/1989 |
| 4796336 | Two part buckle A two part, over center buckle for belting. The buckle has a retention member on one part of the buckle which will engage a detent on the second part of the buckle when the buckle is closed. The retention member holds the buckle closed against normal vibr... | 01/10/1989 |
| 4796337 | Device for closing a boot The device comprises a toothed strap with saw teeth (4), which is fixed, at one of its ends, to the boot (1) and carries a sliding U-piece (7) on which a ratchet (8) cooperating with the toothed strap is pivotably mounted. Above these teeth (10), the ratc... | 01/10/1989 |
| 4796338 | Wire tensioner A device for connecting and tensioning two wires. The device includes two operating members or blocks which are movable back and forth relative to each other in a substantially longitudinal direction. The operating members have gripping portions which coa... | 01/10/1989 |
| 4796339 | One-way snap fastener Molded one-way snap fastener comprises a stud head having a base flange and radial fins extending up from its center to a circular top. The top has downward barbs spaced between the fins. The socket has a base flange and a sleeve having a tapered mouth wi... | 01/10/1989 |
| 4796340 | Method of threading a yarn processing nozzle A yarn texturizing nozzle and method of thread-up of the nozzle are disclosed, and wherein the temperature of the nozzle remains substantially unchanged during yarn thread-up. The nozzle includes a body member having a yarn passageway extending therethrou... | 01/10/1989 |
| 4796341 | Plate routing method and apparatus A method and apparatus for routing a plurality of plates of predetermined size through at least one precision processing station for accurately and economically performing machining functions or the like on the plates. Aligned group of plates are presente... | 01/10/1989 |
