Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 4020507 | Inter-liner for a safety helmet A substantially rigid dome-shaped shell encloses a deformable cap-like headpiece of uniform thickness. The headpiece conforms to the contour of the wearer's head and cooperates with the shell to define a dome-shaped cavity which is sealed around its botto... | 05/03/1977 |
| 4020508 | Alternate toilet bowl flush apparatus A toilet bowl flush apparatus allowing either a total or partial flush from the tank of the apparatus. The tank of the device is fitted with a discharge outlet located on the bottom of the tank. The discharge outlet is closed by a floatable ball-cock of l... | 05/03/1977 |
| 4020509 | Combination wood and aluminum swimming pool wall structure A swimming pool is provided with side walls made up of a plurality of panels each embodying upper and lower receptor beams in the form of oppositely facing channels supporting the upper and lower horizontal edges of plywood sheets, with bracing members lo... | 05/03/1977 |
| 4020510 | Hospital bed reading and writing device A hospital bed accessory for supporting a desk-like platform within reach of a patient, especially one who has to lie prone on the bed, so that he himself can reach it and read or write thereon, and move it out of the way, the accessory including a vertic... | 05/03/1977 |
| 4020511 | Foam bed pillow A one-piece bed pillow consisting of a pillow shaped molded body of open cell urethane foam material having its outer surface formed with a regular pattern of interconnected grooves. The pillow is formed in a mold which is placed in an upright position du... | 05/03/1977 |
| 4020512 | Bed assembly A bed assembly comprising a metal frame of generally rectangular configuration including a pair of opposed side rails and a pair of opposed end rails and a plurality of metal slats extending transversely between the side rails in spaced parallel relations... | 05/03/1977 |
| 4020513 | Combination luggage carrier and picnic table for use with rowboats Two flat panels, each a mirror image of the other, are located in a rowboat so as to cover the major portion of the open top of the boat. The panels are hinged so as to allow either one to be folded on top of the other. A set of legs is associated with ea... | 05/03/1977 |
| 4020514 | Bottom release mechanism for a sonobuoy A bottom release mechanism for a sonobuoy is provided in which a removable end cap is provided with a deformable detent member in the form of either a leaf spring or frangible member, which normally maintains a spring-loaded pin in locking engagement with... | 05/03/1977 |
| 4020515 | Apparatus for assembling washer-shaped and elongated components and the like An apparatus for placing at least one washer-shaped component, e.g., washer and the like, on an elongated object, e.g., nail, screw, rivet and the like comprises: Moveable carrier having at least one receptacle aligned with the groove therein; elongated o... | 05/03/1977 |
| 4020516 | Apparatus for binding loose sheets The apparatus includes a binding station, means for supporting the straight fingers of a flat comb-like wire binder so that the fingers with the tips thereof foremost are directed toward the binding station, means engageable with the binder for pushing th... | 05/03/1977 |
| 4020517 | Dockboard A dockboard for use on a loading dock to provide a ramp between the dock and a platform of an adjacent vehicle, the dockboard being of the type that has a dock plate movable between a flat disposition on the surface of the dock to an inclined loading or u... | 05/03/1977 |
| 4020518 | Auto tire cleaning apparatus An apparatus including a brush assembly positionable toward and away from a vehicle wheel which assembly cleans the vehicle tire sidewall by oscillatory brush motion. A base supports extensible carrier means on which the brush assembly moves while actuato... | 05/03/1977 |
| 4020519 | Stationary back scrubber A body scrubbing apparatus such as a stationary back scrubber is disclosed for attachment to a wall which comprises a resilient sponge device having a reservoir at the top thereof for gravity feeding liquid detergent from the reservoir to the bottom of th... | 05/03/1977 |
| 4020520 | Handle for paint brushes and the like A handle for a paint brush, scraper, dust pan or the like wherein the fingers of the hand extend through a suitable opening in the handle so as to support the handle by the wrist of the user, thereby utilizing the arm of the user more effectively as an in... | 05/03/1977 |
| 4020521 | Toothbrush A dental appliance and, in particular a toothbrush, includes a V-shaped bristle configuration formed in a first member. The first member is incrementally rotatably mounted in a second member.... | 05/03/1977 |
| 4020522 | Bristle ring for use in dental care A bristle ring for use in dental care comprises a rotating cup, at least two rows of bristles arranged in ring shape, the bristles being mounted in said cup and forming a configuration of outwardly diminishing cross-section of frusto-conical shape, the fo... | 05/03/1977 |
| 4020523 | Paint brush dip gauge A plate of porous or open work construction detachably mounted in a paint receptacle and buoyantly supported at a predetermined depth beneath the surface of the paint to be engaged by the tips of the bristles of a paint brush, to prevent the paint brush f... | 05/03/1977 |
| 4020524 | Cooling installation for use in producing insulated metal wire A cooling installation for use in the production of insulated metal wire which installation includes a vat and means for guiding wire longitudinally within that vat and for ejecting cooling fluid against the wire, the installation also including a motor s... | 05/03/1977 |
| 4020525 | Vacuum cleaner filter bag condition indicator A vacuum cleaner filter bag condition indicator that detects when the bag is substantially full and should be replaced. The indicator includes a pressure responsive member having internal filter bag pressure applied to a small area of one side thereof and... | 05/03/1977 |
| 4020526 | Vacuum cleaner nozzle with a movable brush A vacuum cleaner suction nozzle having a brush that is so mounted and arranged as to be capable of moving transversely of the length direction of the nozzle and during part of this movement is elevated from the work surface, while another part of the move... | 05/03/1977 |
| 4020527 | Grip for a hand held portable device A hand held electronic calculator which includes a grip for attaching the calculator to the hand of the user to make it fully operable with one hand while reducing the danger of damage by dropping. The concept is equally applicable to any hand held device... | 05/03/1977 |
| 4020528 | Method and apparatus for removing skin from salted, seasoned or otherwise pre-treated fish, preferably herring filets A method and apparatus for removing skin from pretreated fish, preferably from herring filets, wherein the opened fish is passed skin side up on a conveyor belt through a cutting and cleaning apparatus in which the skin of the fish is contacted with an ac... | 05/03/1977 |
| 4020529 | Unfastening button, particularly for upholstery An unfastening button, particularly for upholstery comprising a button having a bottom part, and a hook extending from the bottom part and having a closing mouth for insertion therein of a loop end of an unfastening thread, the mouth of the hook closing b... | 05/03/1977 |
| 4020530 | Securable multi-purpose clamp and inserts Multi-purpose clamp comprised of tubular clamp elements which contain releaseably secured clamping devices built into its walls, to hold inserts in place. The inserts being tubular and containing releaseably secured clamping devices, housed within and for... | 05/03/1977 |
| 4020531 | Clamp for waveguides, cable or the like A clamp for waveguides or other cable has two members with overall semicylindrical contour, one being stiff, the other one being constructed from two flexible, integrally joint portions. The two members are bolted together on one side and bolted or hinged... | 05/03/1977 |
| 4020532 | One piece molded device A one piece molded plastic device includes a body presenting a face that can receive indicia and an integral clip having convergent sidewalls depending from an integral bight portion. One of the sidewalls is connected to the body and the other sidewall is... | 05/03/1977 |
| 4020533 | Clamp A clamp adapted particularly for use with automobile exhaust systems formed completely of wire or small diameter rod stock. The clamp is comprised of three elements, the first member being a wire or rod having one end thereof formed in a loop along the fi... | 05/03/1977 |
| 4020534 | Apparatus for monitoring stems of electrical light sources during manufacture The invention concerns monitoring of stems of electrical light sources during manufacture. Each stem is positioned or passes between two nozzles blowing compressed air in a direction where a hole in the pinch should be. The parallel axes of symmetry of th... | 05/03/1977 |
| 4020535 | Method of making an electro-discharge electrode Method of forming an electrode for imprinting or imaging a circuit board mold face includes covering a graphite substrate with a photoresist material. The photoresist material is appropriately exposed to develop a desired pattern. The unpolymerized photor... | 05/03/1977 |
| 4020536 | Method of constructing credit cards for automatic vending equipment and credit purchase systems A special method of credit card construction is provided with the credit card precoded in binary code representing several digits and with a locator indicator to insure that the card is correctly positioned when inserted in the console or read-out station... | 05/03/1977 |
| 4020537 | Head-stock for a milling and boring machine This invention relates to a head-stock for a milling and boring machine, comprising a body in which a boring spindle and a milling sleeve or spindle arranged around the boring spindle are mounted to rotate, wherein a tubular member is mounted to rotate ar... | 05/03/1977 |
| 4020538 | Turbomachinery blade tip cap configuration An improved tip cap configuration for a turbomachinery blade includes tip cap seats formed integrally with and located on the inner sides of a hollow turbomachinery blade. Tip cap retaining members are also formed integrally with the inner wall of the bla... | 05/03/1977 |
| 4020539 | Catalytic reactor for automobile A catalytic reactor of oval cross section comprises a generally cylindrical catalytic substrate clamped between paired housing shells and spaced therefrom by a mesh support that extends around the oval periphery of the substrate and slightly overlaps the ... | 05/03/1977 |
| 4020540 | Applicator tool An improved connector applicator tool is disclosed for applying multi-contact electrical connectors into flat cables formed of a plurality of closely spaced parallel conductors. The tool is a bench mounted applicator which is adjustable to accommodate pre... | 05/03/1977 |
| 4020541 | Head shaft breaking tool A head shaft breaking tool comprising an elongated hollow shank portion adapted to be slipped over the head shaft. The lower end of the shank portion is provided with a plurality of spaced-apart teeth which are adapted to engage the coupling at the lower ... | 05/03/1977 |
| 4020542 | Sandwich panel fabrication In the manufacture of sandwich panels, a filler assembly is made up of rib elements and core elements that are roll bonded into a unitary structure, and slices are then cut from the unitary structure forming filler assemblies to be positioned between surf... | 05/03/1977 |
| 4020543 | Two-piece capillary tip bonding tool A lead wire capillary bonding tool formed from a rod with a core, the rod having a shaped end upon which tungsten carbide or refractory metal is vapor deposited and then the core removed.... | 05/03/1977 |
| 4020544 | Method of forming and locating molding clip registers in a metal door frame A metal door frame has trim molding applied to its flanges by the aid of separate clips. Each clip interfits an aperture in the flange and a notch at the flange edge. The aperture and the notch are punched in the flange so that the spacing thereof from th... | 05/03/1977 |
| 4020545 | Apparatus for automatic tool changing in a lathe Apparatus for automatic tool changing, such apparatus being situated between the lathe rest and the stationary tool magazine of the lathe. The total changing apparatus contains a basic support frame which can move parallel to the axis of the lathe spindle... | 05/03/1977 |
| 4020546 | Method for making a cable splice joining a pair of flexible conducting cables A cylindrical metallic sleeve has opposite end portions and a cylindrical body portion with a longitudinal passageway for receiving the end portions of a conducting cable in overlapping relation. A shaped annular portion is formed adjacent the sleeve end ... | 05/03/1977 |
