Celebrity Inventors
Walt Disney was no Mickey Mouse inventor. He devised a serious animation camera which he patented. With the device, his company created "Snow White".
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4261436 | Metal ladder and method of fabricating the same A metal ladder is fabricated from a pair of spaced rails in which the rails have web portions which are provided at spaced intervals with inwardly directed embossments. Each of these embossments has an opening into which one end of a tubular rung is inser... | 04/14/1981 |
| 4245614 | Fireplace screen An improved glass panelled fireplace screen has sliding doors within a frame. The joints between the doors and the frame and between adjacent doors provide novel seals for effectively impeding the passage of air when the doors are in closed position. The ... | 01/20/1981 |
| 4240723 | Process for electrographic image production and an apparatus for carrying out this process A process for a latent electrostatic image or a conductivity image on a photoconductor, a single-component magnetic toner being used for development and a magnetic brush being used not only for application of the toner to the image, but also for removal o... | 12/23/1980 |
| 4235553 | Material mixer A mixer for mixing flowable material in a container rotates the material continuously in one direction about a first axis and simultaneously about a second axis which is non-perpendicular to the first axis, the first axis rotating about the second axis. T... | 11/25/1980 |
| 4232411 | Combination bed and lounge assembly A combination bed and lounge assembly formed of three bed units of different heights. The bed units are adapted to be arranged so as to serve as a three tiered lounge appropriate for daytime use and to be moved apart in separated relation to serve as thre... | 11/11/1980 |
| 4232258 | Speed control apparatus for electric motor A direct current obtained by rectifying an alternating current voltage by means of a diode bridge circuit is applied to a direct current motor connected to the diode bridge circuit. Use is made of the fact that the voltage developed across the diode bridg... | 11/04/1980 |
| 4226260 | Single lever faucet plastic cartridge valve A single lever faucet mixing valve comprises a unitary cartridge which may be installed in a faucet housing for original installation and removed and replaced when worn out. The cartridge is formed of a plurality of molded plastic parts which are adapted ... | 10/07/1980 |
| 4215873 | Method and means for attaching accessory fender to automotive vehicle An accessory fender is attached to the flange delineating the wheel opening of an automotive vehicle by a plurality of retainer clips having teeth struck out from confronting surfaces. The clips are merely driven over juxtaposed surfaces of the fender and... | 08/05/1980 |
| 4212495 | Reclining chair A reclining chair adapted to be positioned in close adjacency to a wall, the chair having a frame and a body supporting unit which is movable relative to the frame between an upright sitting position and a variety of reclining positions. The frame is supp... | 07/15/1980 |
| 4212494 | Rocker reclining chair with multi-position rocker lock A rocker reclining chair has a base, a rocking frame mounted on the base for rocking movement, a seat frame suspended by linkage from the rocking frame for movement between a lower position and a forwardly raised position, a backrest connected by linkage ... | 07/15/1980 |
| 4210448 | Process for electrophotographic image formation and transfer Sharp, high-resolution copies of electrostatc images developed with a one-component magnetic toner can be obtained by corona transfer to a copy sheet if toner resistivity is at least 1013 ohm-cms. Such resistivity is attainable by incorporating... | 07/01/1980 |
| 4205426 | Method of fabricating metal ladder A metal ladder is fabricated from a pair of spaced rails in which the rails have web portions which are provided at spaced intervals with inwardly directed embossments. Each of these embossments has an opening into which one end of a tubular rung is inser... | 06/03/1980 |
| 4203681 | Single element typewriter with error correction feature A conventional single element IBM correcting SELECTRIC typewriter having an error correction system is modified by adding to the element a universal obliterating type font and providing an error correcting key function which is independent of the other ke... | 05/20/1980 |
| 4198455 | Trim and molding strip and the method of forming same A trim and molding strip is formed of a plywood substrate covered by an overlay film of flexible decorative material and includes a longitudinally extending V-shaped groove the apex of which terminates at the overlay film which functions as a hinge to fac... | 04/15/1980 |
| 4198070 | Step assembly for automotive step bumpers A step assembly for use on step bumpers of automotive vehicles includes a pair of mounting brackets adapted to be secured to a bumper, a lower step supported by said brackets and an upper step hingedly connected to and superposed on said bumper. Each of t... | 04/15/1980 |
| 4196684 | Shuttle device for sewing machine A shuttle device provided with a rotating hook comprises a rotatable race secured to a verticle driving shaft. A bobbin carrier is journalled in the race and has a pair of spaced abutment faces on opposite sides of the path of the needle. The abutment fac... | 04/08/1980 |
| 4191567 | Procedure for making a reusable photoconducting charge image carrier and charge image carriers prepared by this method Long-life multilayer photoconductive members of the ZnO type are obtained when the successive layers are deposited using solvents, drying temperatures, etc. which do not affect the layers previously deposited. In such fashion, at least 4,000 cycles of use... | 03/04/1980 |
| 4185400 | Typewriter with instructional apparatus A typewriter and the like utilized as an instructional aid device has control means for teaching alphabetical letter recognition, the sequence of letters in forming words and the association of a word to the picture of an object. A coded card, the preferr... | 01/29/1980 |
| 4182249 | Automatic buttonhole apparatus for use with sewing machine A presser bar has a presser attachment for holding fabric placed on a machine bed and a shoe is attached to the presser attachment in such a manner as to be slidable in the fabric feed direction. A first slidable variable resistor is fixed to a lateral su... | 01/08/1980 |
| 4181422 | Process and apparatus for developing and cleaning a charge image carrier A process for developing a latent charge image on a repeatedly usable charge image carrier and for cleaning the carrier after transfer of the developed charge image by means of a single magnetic brush having a layer of magnetic one-component toner and a t... | 01/01/1980 |
| 4168860 | Multi-purpose convertible seat construction A multi-purpose convertible seat construction including a back section and a seat section interconnected and supported so that they may be selectively positioned to constitute a forwardly facing seat, a rearwardly facing seat or a sleep surface in which t... | 09/25/1979 |
| 4155862 | Liquid developer for color electrophotography and process for preparation of the same Liquid developer formulations adapted to colored toners suitable for trichromatic processes in electrophotography, the toners being lightfast organic dye pigments with substantially no photoconductivity which are mixed with a paraffinic material as a prot... | 05/22/1979 |
| 4145977 | Modular shelf system with assembly-disassembly feature A modular shelf system formed of injection molded structural elements including shelf modules and column modules. The shelf modules have through openings and the column modules have interlocking ends which are received in said openings so that the column ... | 03/27/1979 |
| 4140255 | Spare wheel carrier for vehicles A bumper mounted spare wheel carrier for a vehicle is foldable downwardly to afford access to a trunk or door of the vehicle. The carrier includes a spring biased latch element which secures the carrier in vertical position. A resilient operating lever se... | 02/20/1979 |
| 4139808 | Control apparatus for electrically driven sewing machine A sewing machine driven by a motor which is adapted to be energized by an alternate current power supply and is phase controlled by means of thyristors. In a normal operating mode the conduction phase of the thyristors is made variable as a function of th... | 02/13/1979 |
| 4123818 | Carpet and floor washing accessory for wet pick-up-vacuum cleaners A low-cost accessory for a conventional tank-type wet-pickup vacuum cleaner which converts such a vacuum cleaner into a self-contained hot water extraction type of carpet shampooer and floor cleaner suitable for use by homeowners. The accessory includes a... | 11/07/1978 |
| 4119343 | Platform rocker structure A platform rocker structure for supporting a chair seat and back for rocking motion includes two or more flexure members formed of epoxy-glass laminates which have unusual flexural characteristics and high resistance to flexural fatigue.... | 10/10/1978 |
| 4111503 | Sewing machine cabinet A sewing machine cabinet for use with a free-arm type sewing machine in which the sewing machine is maintained at the same level when used either in a free-arm or flat bed mode of operation. The cabinet includes a hinged sewing machine support panel havin... | 09/05/1978 |
| 4108095 | Rotary loop taker for sewing machine A loop taker mechanism and bobbin carrier for a sewing machine in which the bobbin carrier is formed of three components and is journalled in a rotary hook casing. An oscillating escapement yoke has two spaced beaks which cooperate with abutment faces on ... | 08/22/1978 |
| 4106790 | Vehicle step A vehicle step which includes a pair of pivotally supported levers or links to which are pivotally connected a pair of pivotally connected tread supporting members. Said members engage a transverse bar which together with the levers guide the tread in its... | 08/15/1978 |
| 4093456 | Process and device for electrophotographic image generation and application of the process Electrophoretic image generation involving a conductivity pattern and a field produced by electrodes which are shunted in the process of image formation, the shunting being interrupted for a predetermined time to minimize background.... | 06/06/1978 |
| 4089573 | Hinge assembly for mounting sewing machine in cabinet A hinge assembly for mounting a sewing machine in a cabinet includes means for adjusting the attitude of the machine in relation to the table top of the cabinet, in order to compensate for variations in structural tolerances of the hinge assembly and the ... | 05/16/1978 |
| 4074644 | Feed mechanism for sewing machine Mechanism in a sewing machine for actuating the feed dog includes a pivoted actuating arm carrying on its distal end a feed dog support which is rockable about a vertical axis and also is slidable vertically. The feed dog support includes an arm which coo... | 02/21/1978 |
| 4056030 | Combined miter box, corner clamp and measuring gauge A combined miter box, corner clamp and measuring gauge apparatus is provided. The apparatus is particularly suitable for use in forming picture frames, frames for screens, or trims for other purposes and very precise and accurate cuts may be obtained due ... | 11/01/1977 |
| 4055128 | Ornamental stitch sewing machine An ornamental stitch sewing machine has a drive shaft with a first cam mounted on the shaft for axial movement. The cam is tracked by a tracking element. A second cam is adapted to be removably mounted on the shaft in superposed relation to the first cam ... | 10/25/1977 |
| 4053091 | Combination rear luggage carrier and child seat for bicycle A carrier formed of welded rod or tubular metal and mountable on a conventional bicycle above the rear wheel to provide a rigid platform for supporting items of luggage and the like. A child's seat of molded plastic material includes simple means for deta... | 10/11/1977 |
| 4050454 | Chiropractic table A table for use in administering chiropractic adjustments including at least one column mounting a body support and vertically movable relative to a base. Detent means bear against the column. A first air cylinder serves to elevate the column. A second ai... | 09/27/1977 |
| 4047777 | Knockdown put-together article of furniture A knockdown, put-together article of furniture, such as a dresser, cabinet, desk and the like, in which the parts can be packaged and shipped in a knocked-down disassembled condition and readily assembled by the use of U-shaped wire interlocking members. ... | 09/13/1977 |
| 4044700 | Sewing machine support structure and work surface A sewing machine support structure in which the machine is slidable in a horizontal plane from in-use to out-of-use position and vice-versa, and in either position, the machine always is in full view, never concealed. Additionally, means are provided for ... | 08/30/1977 |
| 4042157 | Wheel and tire carrier for attachment to motor vehicle door A wheel and tire carrier for attachment to the door of a motor vehicle in which the door is hingedly supported adjacent its rear edge by upper and lower hinge means, the wheel and tire carrier comprising a pair of members each connected at their one end t... | 08/16/1977 |
