Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 4420130 | Fabrication process for an envelope, in particular for space balloons, envelope thus made, and its application to the aerospace domain A stress control mechanism for a space balloon is comprised of an axial tie member extending from the upper pole of a load carrying space balloon envelope, the tie member passing from the upper pole of the space balloon envelope through the balloon to an ... | 12/13/1983 |
| 4396218 | Spreader system for handling containers An improved radio-controlled spreader for handling cargo containers is disclosed having a number of improved safety features. A switching circuit, including proximity switches mounted on the respective corners of the spreader for sensing contact with the ... | 08/02/1983 |
| 4395132 | Stirring gear with internal heating A stirring gear adapted for internal heating comprising a central tubular shaft for the supply of a heat exchange medium and stirring paddles mounted perpendicularly to the shaft and provided with hollow interspaces through which the heat exchange medium ... | 07/26/1983 |
| 4392587 | Applicator for granular material A granular herbicide or other agricultural chemical is applied using an applicator including a hopper with orifices in its base for discharging the granular material onto metering wheels mounted on a drive shaft beneath the hopper, the wheels feeding the ... | 07/12/1983 |
| 4391394 | Method for laying shirts, especially men's shirts, for purposes of wrapping A method for laying a shirt, comprising the steps of folding a first shirt yoke and a second shirt yoke along mutually parallel folding lines; laying said first folded yoke on said shirt back and on said second yoke; fastening said first shift yoke to sai... | 07/05/1983 |
| 4391188 | Pin-off and door closure assembly for a stationary refuse compactor A pin-off and door closure assembly for a stationary refuse compactor which includes a packer unit having a ram for forcing refuse into a portable container through a load opening in the door thereof, the container being removably attached to the packer u... | 07/05/1983 |
| 4391031 | Method of assembling two shaped sections with a cotter The invention concerns a method for assembling two shaped sections (1, 2) at intersecting directions. This method consists in engaging one of the shaped sections, 2, into a slot fashioned in the other 1, and in locking the latter using cotters 3 comprisin... | 07/05/1983 |
| 4390482 | Method for molding contact lenses using microwave energy The invention relates to a fabrication method for molding a contact lens with the required optical qualities. This method consists in designing a mold (1, 2) of high thermal inertia, which is transparent to, or little absorbing the electromagnetic microwave ... | 06/28/1983 |
| 4389199 | Shaft lock for propellers for sailing boats An auxiliary engine propeller shaft locking device for sail boats and the like comprising, a base having an upper lock housing and a lower shaft housing; the housings being integral and in substantially abutting relation with each other. The shaft housing... | 06/21/1983 |
| 4388786 | Construction means for use in the assembly of wall and/or roof structures Construction means for wall and/or roof structures, e.g. for exhibitions etc. has a stanchion profile section (10) with protruding webs (11) forming mortise-shaped pockets (12) and wall and/or roof supports (13, 14) each provided with a turnbuckle (15) co... | 06/21/1983 |
| 4387891 | Walker A walker including a frame, the forward portion of which is provided with rotary members at its lower end for advancing the walking aid. The rotary members comprise 2 spoked wheels fixed to the ends of and rotatable with an axle, the spokes of the rotary ... | 06/14/1983 |
| 4387120 | Gas injector for fluidized bed furnace A fluidized bed furnace employed for depositing pyrolytic carbon or silicon carbide on nuclear fuel particles is supplied with an inert dilution gas and a decomposable coating gas. These are supplied by means of a gas injector having at least three pipes ... | 06/07/1983 |
| 4386964 | Modelling compounds The present invention relates to a modelling powder and its method of manufacture and also to modelling compounds made from the modelling powder. The modelling compounds are of a soft pliable consistency such that they can be modelled into any desired sha... | 06/07/1983 |
| 4386704 | Method of forming packs of rolls of metal wire netting A process for forming packs from cylindrical rolls of metal wire netting comprising flattening each of a plurality of the rolls so as to form an elongated body the major axis of which coincides with that of the cylindrical rolls and which body thereby has... | 06/07/1983 |
| 4385911 | Air filtering device A compact air filtering device for filtering room air in the home or work environment constructed of a minimum number of unitary structural elements is disclosed, the device having a fan for drawing air through the device encased in detachably interlocked... | 05/31/1983 |
| 4384810 | Locking beam to form a three-dimensional lattice in a construction system for plantable shoring walls A locking beam to form a three-dimensional lattice in a construction system for plantable shoring walls comprising support blocks stacked one above the other with plane upper and under sides transversely to the longitudinal wall direction and acting as sp... | 05/24/1983 |
| 4384799 | Combination writing instrument and lighter A combination writing instrument and lighter including a barrel housing having a longitudinal axis and ends, a writing unit mounted in one end of the housing, a lighter unit mounted in the other end of the housing, and a writing unit having at least a sub... | 05/24/1983 |
| 4382902 | Method for molding contact lenses using ultraviolet energy The invention relates to a fabrication process for molding a contact lens evincing the required optical properties. This method consists in designing a mold (1,2) with a high thermal inertia, transparent to, or little absorbing electromagnetic waves with wavel... | 05/10/1983 |
| 4379381 | Roof insulation system An insulation system for a roof structure which includes a semi-rigid insulation blanket overlying a support structure across roof purlins and having additional insulation material filling a U-shaped trough created by the blanket between adjacent purlins.... | 04/12/1983 |
| 4378963 | Injection mechanism for molding plastics The invention relates to an injection mechanism for molding plastics, comprising at least one injection bushing, at least one lower needle valve, which is supplied by the injection bushing with molten plastics and opened by the pressure of the molten plas... | 04/05/1983 |
| 4378867 | Clutch drum retainer An antigrab clutch assembly for motorcycles and the like comprising drive shaft means, clutch hub means associated with the drive shaft means, throw out assembly means associated with the clutch hub means, a clutch housing, friction clutch disc means, eng... | 04/05/1983 |
| 4379237 | Light intensity control device and circuit therefor A device for producing a gradual change in power supplied to a load which utilizes at least one gated solid state switching device and a selectable variable timer network connected to the gate electrode and comprising a chargeable capacitor and a switchab... | 04/05/1983 |
| 4371016 | Delimbing apparatus This invention pertains to a delimbing apparatus which is mounted on a vehicle and is constructed to delimb several felled trees as the vehicle moves the delimbing apparatus over the trees. The delimbing apparatus comprises a frame having a plurality of d... | 02/01/1983 |
| 4371070 | Key deposit return machine A deposit for a key is returned after the key is deposited in the machine where an element on the key unlocks the coin control mechanism.... | 02/01/1983 |
| 4368903 | Tear-off postal receipt form A tear-off return receipt form for attachment to a mail support surface comprising a base member including a marginal strip and a main strip, a top member including a marginal strip and a main strip, the marginal and main strips each having inside and out... | 01/18/1983 |
| 4365648 | Check valve A check valve having a plastic cylindrical body having an axial inlet and outlet, longitudinal guide ribs on the inside of the body, a spring member urging a valve ball against the inlet opening, a guide pin inside of the spring member, and a screen membe... | 12/28/1982 |
| 4362421 | Anchor for use in the post-tensioning of prestressed concrete An anchor for use in the post-tensioning of prestressed concrete, including an anchor case having a longitudinally tapering outer wall surface and a tapered longitudinal bore for receiving a chuck comprising wedge segments which are in gripping engagement... | 12/07/1982 |
| 4360766 | Multi-battery power supply for DC motors A multi-battery power supply has a battery adding circuit and a charging circuit for each battery, and a common heat sink bus.... | 11/23/1982 |
| 4359998 | Ignition system for internal combustion engines An audio frequency ionization ignition system for internal combustion engines which simulates turbulent combustion (diesel combustion) in spark ignited internal combustion engines utilizing standard equipment with minor changes in the wiring harness of a ... | 11/23/1982 |
| 4356830 | Cleansing apparatus for test-vessels A cleansing apparatus for test-vessels such as cuvettes or the like comprising a support shaft and three spaced paralleled disks, two of said disks being secured to the shaft and the third disk being rotatably positioned on the shaft, a nozzle secured to ... | 11/02/1982 |
| 4357209 | Nuclear divisional reactor A nuclear divisional reactor including a reactor core having side and top walls, a heat exchanger substantially surrounding the core, the heat exchanger including a plurality of separate fluid holding and circulating chambers each in contact with a portio... | 11/02/1982 |
| 4354798 | Rotary tool positioning unit for a woodworking machine A rotary tool positioning unit for machining workpieces is disclosed having a rotary tool holder and a plurality of slide bearings cooperating with one another in such a manner that the rotary tool holder is capable of independent translational movement i... | 10/19/1982 |
| 4355417 | Squelch control circuit for amplitude modulated RF receivers A noise squelching circuit for an AM radio in which a phase-locked loop extracts a tone signal which gates an audio frequency amplifier. Tone injection can be accomplished either by frequency modulating the intermediate frequency signal or the output of t... | 10/19/1982 |
| 4353867 | Method and apparatus for the determination of substances in biological solutions by differential pH measurement A method and apparatus for the determination of the concentration of certain chemical substances such as glucose, urea, enzymes, etc. in biological solutions such as blood, serum, urine, using a technique of differential pH measurement using two pH electr... | 10/12/1982 |
| 4353837 | Method for continuous azeotropic processing of vegetable and protein material A method for continuous azeotropic processing of vegetable and protein material provides for staged processing, separate dehydration, and flash desolventizing.... | 10/12/1982 |
| 4352616 | Device for arranging objects in stacking layers, for loading pallets A method and apparatus for grouping of objects such as books or the like to stacking layers for loading onto pallets wherein stacks of equal height are formed from the individual objects, and are conveyed sequentially for forming a stacking row, the lengt... | 10/05/1982 |
| 4352038 | Acoustical transmission wave guide assembly for predicting failure of structured members A metallic wave guide having a smooth protected surface is connected at one end to a metal structural member under test and at the other to a metal plate to which a piezo electric crystal transducer of preselected frequency response is attached. The lengt... | 09/28/1982 |
| 4351474 | Mailer with sticker-type sign A unitary mailer item has an envelope and an attached sticker-type sign piece, both of which are readily detachable from the item.... | 09/28/1982 |
| 4349489 | Jet for the production of a vaporized idling mixture in an internal combustion engine This invention relates to a process and a jet to produce an idling vaporized mixture in an internal combustion engine. The process consists in vaporizing the mixture in two phases: one premixing phase in a turbulence chamber (10) consisting of mixing the ... | 09/14/1982 |
| 4348018 | Method and apparatus for the separation of flexible sheets from a stack and their transportation to a processing unit A method and apparatus for separating and individually transporting flexible sheets from a stack to at least one processing unit wherein one stack edge is compressed and the topmost sheet is picked-up by pick-up heads at its edge situated at the compresse... | 09/07/1982 |
