An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 3955257 | Revolving tool holder for a rotary machine such as a lathe or drill A turret head for a rotary turning machine having a base rotatably mounted on a cross-slide for movement about a first axis. The turret head is mounted to the base for rotatable movement relative thereto about a second axis that is inclined to the first a... | 05/11/1976 |
| 3955258 | Multiple-purpose machine tool A multiple-purpose machine tool wherein two spaced-apart upright frame members support three horizontal guide members which are disposed one above the other. The uppermost and lowermost guide members support two disks which are adjustable lengthwise there... | 05/11/1976 |
| 3955259 | Reversible cutting insert for use in a rotary cutting tool A reversible cutting insert, for a rotary cutting tool, is characterized by the provision thereon of two side-by-side bevel faces at each corner of the insert, which faces intersect edges at more than 90° and intersect opposite polygonal surfaces at edge... | 05/11/1976 |
| 3955260 | Applicator for ceiling texture material A roller type applicator has a plurality of spaced air pockets which project outwardly in the form of nodules. These air pockets are defined by a thin plastic film.... | 05/11/1976 |
| 3955261 | Embossed decorative facing panel Panel of nonferrous metal sheet for covering facings, particularly a panel consisting of aluminium metal sheet, characterized in that said panel has an embossed surface provided with irregular areal depressions predominantly having a width of at least 10 ... | 05/11/1976 |
| 3955262 | Blanks for wiredrawing by impact The invention relates to blanks made of aluminum or aluminum base alloys for wiredrawing by impact, and to their method of obtaining same. These new blanks are obtained by casting and cooling under pressure, and are characterized by a fine and homogeneous... | 05/11/1976 |
| 3955263 | Method and device for closing the fastener of a belt, more particularly a textile belt The invention concerns the fastening together of the ends of a belt. The sing of the fastener of a belt having fastening elements at each end is effected by means of two connecting straps fixed along each end and each comprising a guide ramp, a slide par... | 05/11/1976 |
| 3955264 | Core steel stacking machine A core steel stacking machine for stacking cut core lamination members with a uniform stagger or offset. The cut core laminations are transferred one at a time from a pack of cut laminations and placed on a transfer table which is indexed after each lamin... | 05/11/1976 |
| 3955265 | Method of applying a patch to a surface A method of securing a patch of resilient material to a surface, in which method the patch is applied to the surface so as to form a curved clearance between itself and the surface, pressure is applied to press the central region of the patch against the ... | 05/11/1976 |
| 3955266 | Vacuum sealed molding process for producing molds having a deep concave portion or a convex portion A molding process for casting operations in which castings having a deep concave portion or a high convex portion such as pots and bathtubs are cast using vacuum sealed molds on which films are applied to be in tight contact with them, and a film forming ... | 05/11/1976 |
| 3955267 | Attachment for automating milling machines An improved portable bracket assembly capable of being attached to a milling machine to thereby allow a plurality of sequentially located tool holders to be selected and inserted into the spindle of the milling machine. A special camming device containing... | 05/11/1976 |
| 3955268 | Method of fabricating an electrolytic cell gas sensor A Solid State Electrolytic Cell Gas Sensor is presented which is capable of measuring various toxic or combustible gases in low concentrations (0-5 PPM) up to and including high concentrations such as 0-20 percent by volume. The sensor exhibits excellent ... | 05/11/1976 |
| 3955269 | Fabricating high performance integrated bipolar and complementary field effect transistors A method for fabricating both bipolar as well as complementary MOS field effect transistors, i.e., BI-CMOS transistors in the same semiconductor substrate. The preferred embodiment of the method provides bipolar and CMOS transistors having breakdown volta... | 05/11/1976 |
| 3955270 | Methods for making semiconductor devices Ultrasonic agitation in a liquid is used in two ways in the fabrication of small semiconductor diodes. First, a silicon-containing metal layer such as platinum-silicide is removed by exposing it to a silicon etchant and then ultrasonically agitating it. S... | 05/11/1976 |
| 3955271 | Dynamoelectric machinery A dynamoelectric machine including stator and armature structures. The stator includes a yoke and a plurality of pole shoes carried thereby which include slots for receiving compensating coils. Strand-like elements are tightly packed within the slots betw... | 05/11/1976 |
| 3955272 | Method for making a stator for electric motors A method for making a stator for electric motors comprised of a plurality of laminations arranged with their sides in the direction of the rotor axis wherein the edge portions of the laminations running in the axial direction are bent upwardly towards the... | 05/11/1976 |
| 3955273 | Method of manufacturing flat type wound armatures A flat armature is manufactured by forming a given number of coils over a separatable winding frame, fixing their relative positions by putting adhesive tapes across the coils on the frame, removing the coils from the frame, arranging a group of coils on ... | 05/11/1976 |
| 3955274 | Method of manufacturing a low energy-loss waveguide circuit element A method of manufacturing low energy-loss waveguide circuit elements in which a film of metal with low resistivity is laid on the surface of a base metal and a hard metal die of a desired shape is pressed into the base metal through the metal film, so tha... | 05/11/1976 |
| 3955275 | Apparatus for closing clam-shell housings A method and apparatus for closing and bonding initially open clam-shell housings about articles such as electrical terminals or the like. The housings are initially in strip form, a plurality of the initially open clam-shell housings being interconnected... | 05/11/1976 |
| 3955276 | Electrically motor driven can opener Electrically driven device for automatically opening food cans using a serrated wheel to turn the can and a fixed cutting element, consisting of an oscillating arm supporting the spindle of the serrated wheel and controlled in its movement by a cam, with ... | 05/11/1976 |
| 3955277 | Adjustable razor blade unit A razor blade unit having a cap portion, guard portion, and a blade member clamped therebetween, the unit further having coupling structure for detachably connecting the unit to a cooperating handle, and adjusting mechanism integral with the unit and oper... | 05/11/1976 |
| 3955278 | Cutting board and knife set A cutting board and knife set is disclosed in which the cutting board has a handle which is recessed to receive the handle of a knife having a complementary configuration to the recess. The recess in the cutting board handle is characterized by a pair of ... | 05/11/1976 |
| 3955279 | Guide bar for chain saw having a replaceable nose portion A guide bar has a main portion and a nose portion. The main portion has a convex outer end and the nose portion a mating concave inner end. A tongue extends from the nose portion for insertion in a receiving slot in the main portion and rivets fasten the ... | 05/11/1976 |
| 3955280 | Dental implants An endosseous dental implant comprises in combination a conical foundation member to be inserted into an alveole of the jaw bone or into a hole bored therein. The foundation member has a longitudinal bore open at top and having an interior saw thread at i... | 05/11/1976 |
| 3955281 | Disposable dental tray for topical application of fluoride gel and other dental medications A disposable applicator tray, for topical application of fluoride gel and other dental medications, in the form of an arcuate mouthpiece having a U-shaped cross-section and comprised of flexible polymeric foam material. The interior channeled recess of th... | 05/11/1976 |
| 3955282 | Process of mounting orthodontic bracket to tooth An orthodontic method, dental composition, and apparatus are provided which permit the direct bonding of orthodontic brackets to teeth. In particular, a method has been devised whereby the tooth, following phosphoric acid etching, is treated sequentially ... | 05/11/1976 |
| 3955283 | Flexible handpiece mounted control for dental drills This invention discloses a flexible handpiece mounted control for dental drills. Two embodiments are disclosed whereby the control can be mounted externally on a standard handpiece or part of a specially designed handpiece. Both embodiments provide a tube... | 05/11/1976 |
| 3955284 | Disposable dental drill assembly A disposable dental drill assembly is disclosed in this application and includes a housing in which is rotatably carried a rotor member including a turbine blade configuration and which is fixed to the end of a dental burr. The housing is formed with inte... | 05/11/1976 |
| 3955285 | Device for measuring posture-determining parameters of a human body An upright column, rising from a base provided with a heel stop for a person standing thereon, carries five slides supporting respective feelers engageable with the body of that person for ascertaining body dimensions and posture. The feeler on the top sl... | 05/11/1976 |
| 3955286 | Method of and installation for treating various objects by means of microwaves In a method of treating various objects, for example bottles or ampoules, by means of microwaves with a view to drying and/or sterilising them, the treatment is performed in a hermetic enclosure and the effect of the microwaves is combined with at least o... | 05/11/1976 |
| 3955287 | Superheat apparatus for drying textile products Apparatus and method for removing moisture from textile products which are sufficiently porous to permit a substantial flow of heated fluid through the product. Two separate drying regions are provided through which a web of textile product is serially mo... | 05/11/1976 |
| 3955288 | Continuous flow grain drying apparatus Continuous flow grain drying apparatus having an upper, foraminous drying enclosure into which grain to be dried is introduced and which communicates with a lower, foraminous cooling enclosure. A first enclosed, foraminous duct in the upper enclosure defi... | 05/11/1976 |
| 3955289 | Educational and display apparatus Educational and display apparatus which comprises indicia representative of multiple entities and means associated with said indicia which depicts the events which each of the entities experiences, the sequence in which said events are experienced, and th... | 05/11/1976 |
| 3955290 | Learning devices An electronic matching circuit for use in teaching, having a plurality of contact pairs interconnected through an interchangeable and programmable matrix. One contact of each pair corresponds to a stimulus and the other contact of each pair to a response.... | 05/11/1976 |
| 3955291 | Demonstrative apparatus having air-cushioned movable disks Demonstrative apparatus of the type having a table with one or more air cushioned disks movable on the table and with apparatus for providing a record of the disk movement. The apparatus comprise a spark generator connected to the disk for generating spar... | 05/11/1976 |
| 3955292 | Apparatus for antiaircraft gunnery practice with laser emissions Each gun of an antiaircraft battery has a unit comprising a laser and a coaxial radiation detector, the axis of the unit being near and parallel to that of the gun barrel. An instrument center, spaced from the guns and controlling their aim, comprises a c... | 05/11/1976 |
| 3955293 | Convertible footwear and accessories in accord Convertible footwear in accord with one's wearing apparel and accessories can be attached and interchanged to beautify and harmonize in a complimenting fashion the entire color scheme of one's appearance. The convertible footwear comprises sectioned expan... | 05/11/1976 |
| 3955294 | Elevator apparatus for towed deep-sea particle harvester An elevator apparatus for emptying a towed deep-sea particle harvesting sled is disclosed. The sled is towed over the bottom surface of a deep-sea ocean bed by a strip. The strip is connected at its lower end to the sled, at its upper end to the vessel, a... | 05/11/1976 |
| 3955295 | Data bearing card having an aesthetic, magnetizable, colorless, transparent coating thereon A data bearing card having a magnetizable, transparent, colorless coating thereon is disclosed. The coating can comprise a transparent, colorless plastic matrix containing a dispersed particulate crystalline phase. The dispersed phase is prepared by mixin... | 05/11/1976 |
| 3955296 | Clip for securing signage to a variety of supports A clip is disclosed which is used to support signage having information thereon. The clip is uniquely designed so that it can be inserted into a standard price-tag display channel such as that used on the edge of supermarket shelves, or alternatively be s... | 05/11/1976 |