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"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
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| Number | Title | Issue Date |
| 4231117 | Helmet assembly for accurately positioning visual display system A helmet assembly which accurately positions a portable visual display unit carried by the helmet shell thereof in a predetermined position relative to the eye of the wearer. The outer shell and an inner helmet assembly adapted to fit relatively closely o... | 11/04/1980 |
| 4231118 | Head and face protecting hood This invention is directed to a head and face protecting hood which includes a cover body having front and rear walls each being having an outer layer of a laminate of non-flammable polyvinyl chloride sheet and non-flammable fiber sheet and an inner layer... | 11/04/1980 |
| 4231119 | Adjustable apron of vinyl laminate An adjustable apron is disclosed which is made of three separate pieces of vinyl fabric, namely a body member and two identical crescent-shaped arm cut-out strips. The vinyl fabric is a soft and flexible vinyl laminate formed by bonding poly(vinyl chlorid... | 11/04/1980 |
| 4231120 | Endoprosthetic orthopaedic devices The securement of an endoprosthetic orthopaedic member of plastics material in cancellous bone involves the provision of a relieved configuration on the member, the upstanding elements of such configuration flexing to afford an interference fit upon trans... | 11/04/1980 |
| 4231121 | Metacarpal-phalangeal prosthesis The disclosure is of a two-part prosthesis which is particularly designed and intended for intramedullary implantation in substitution for the metacarpophalangeal (MP), phalangeal-interphalangeal (PIP) or distal-interphalangeal (DIP) joints.... | 11/04/1980 |
| 4231122 | Knee joint prosthesis A prosthesis for knees and other joints comprises two portions which are disposed side by side and which are at least partially spaced apart from one another. Each portion of the prosthesis includes a pair of spaced apart, relatively inextensible primary ... | 11/04/1980 |
| 4231123 | Enamelled basin structure This invention relates to water basins and valves and valve controls therefore. The basin has interior water supply and overflow lines communicating with the interior peripheral surface and is provided with valves and push button controls to control the f... | 11/04/1980 |
| 4231124 | Hospital beds A hospital bed is described having a twin canting plate mechanical jack for raising the top of the bed relative to the base or chassis, for holding the top in any elevated position, and for permitting descent, in which the jack comprises a horizontally ar... | 11/04/1980 |
| 4231125 | Beach towel for use with a pillow A beach towel or the like for use with a pillow, and characterized by simplicity and economy of construction, and the use of elements substantially impervious to corrosion by salt and damage from sand. The beach towel comprises an elongate, substantially ... | 11/04/1980 |
| 4231126 | Water bed wave generator A pad mounted for resting on the top surface of a water bed reciprocates vertically to displace water forming waves in the water of the water bed, for relaxing a user. The speed, amplitude and time of operation of the pad is variable to the desires of the... | 11/04/1980 |
| 4231127 | Foldable cushioning and support At least a pair of separate cushioning members are interconnected by an overlying face of a cover and disposed side by side at the side regions, border strips are secured each along one of their edges to a corresponding inner skin overlying one main face ... | 11/04/1980 |
| 4231128 | Cooking utensil with integrally formed pot attaching means A cooking utensil or tool basically characterized as having a handle end, a working end, and an intermediate shank portion extending between said handle and working ends. Attaching means is formed about the intermediate shank portion of the cooking tool t... | 11/04/1980 |
| 4231129 | Apparatus and method for impregnating a dry fiber batt A method and apparatus for impregnation of a dry fabric is disclosed including a purging device which is provided immediately upstream of a supply of liquid within an impregnation tank. The purging device urges a condensable gas through the dry fabric imm... | 11/04/1980 |
| 4231130 | Automatic washing machine and method for operating the same An automatic washing machine capable of automatically carrying out a programmed sequence of a washing operation, a rinsing operation and/or a spinning or extracting operation, and a method for operating such a washing machine, in which a newly selected op... | 11/04/1980 |
| 4231131 | Inflatable high speed boat A collapsible, inflatable boat is provided having two large inflatable tubes as hulls connected together by a floor raised above the midpoint of the hull tubes and supported by spaced-apart, laterally-extending rigid members flexible connected thereto. An... | 11/04/1980 |
| 4231132 | Apparatus for cleaning inner surfaces of hollow cylindrical container An apparatus for washing, cleaning or polishing inner surfaces of a hollow cylindrical container, comprising: a rotatable vertical shaft which is adjustable in its length to obtain a desired shaft length to match the depth of the container; at least one b... | 11/04/1980 |
| 4231133 | Wet vacuum machine A suction power unit for a wet vacuum machine includes a dome-shaped housing closed off by a bottom wall with an inlet defined in the bottom wall and a centrifugal blower aligned with the inlet. A second wall is parallel to the bottom wall and spaced ther... | 11/04/1980 |
| 4231134 | Automatic door closing arrangement The closing mechanism of an automatic door closing arrangement is partly enveloped by an elongated unitary casing of sheet metal. Flanges on two of the longitudinal casing walls bound therebetween an opening in the casing which may be closed by a panel re... | 11/04/1980 |
| 4231135 | Flexible and sewable hinge A hinge with two elongated flexible flange portions which can be fastened to an article by sewing or stapling. Each flange portion includes a plurality of integral aligned knuckles which engageably cooperate with the knuckles in the other whereby a pin ca... | 11/04/1980 |
| 4231136 | Bagasse depithing The pith removal from bagasse fiber is significantly enhanced by the flow of fiber directly from one depithing zone to a second depithing zone without any intermediate settling or pilings of the fiber. The fiber is maintained in a separated condition duri... | 11/04/1980 |
| 4231137 | Clasp for personal ornaments or furnishings A clasp is designed to be attached to an annular personal ornament or furnishing, such as a necklace or bracelet, to form a portion of the same. The clasp comprises two metallic parts of substantially the same shape adapted to be coupled together by the c... | 11/04/1980 |
| 4231138 | Slide fastener A slide fastener is disclosed including mounting tapes each having a warpless area or a void area formed in them near their adjacent edges. Coupling elements are secured onto the edges of the mounting tapes and plugs of material interconnecting the legs o... | 11/04/1980 |
| 4231139 | Woven stringer for slide fasteners A slide fastener stringer is disclosed which has a fastener element in the form of a helical coil having a row of successive loops woven into a longitudinal edge of a stringer tape simultaneously as the tape is woven. The fastener element is held stably i... | 11/04/1980 |
| 4231140 | Key clip adapted for a key case The present invention relates to key clips adapted for a key case and comprises a vertical section and extending from such vertical section a horizontal section. The vertical section is equipped with an indent or ridge which is disposed spaced apart from ... | 11/04/1980 |
| 4231141 | Attachment device for flexible films and fabrics The attachment device is made of two piece separable construction for use in securing flexible films and fabrics, hereafter referred to as material. One element has two longitudinal grooves facing in opposite directions, one groove being larger than the o... | 11/04/1980 |
| 4231142 | Stop motion for band cutting device In a band-cutting machine comprising a lower frame supporting a cloth-drawing mechanism, a control device for mechanically connecting the rotating parts of the machine, an upper rotatable frame positioned on said lower frame supporting a roll for cloth an... | 11/04/1980 |
| 4231143 | Electrode and apparatus for forming the same The specification and drawings disclose an anode assembly for use in electrolytic cells, and apparatus for forming such assemblies. The anode assembly comprises an anode riser to which is joined a parallel pair of metal sheets which form anode surfaces. T... | 11/04/1980 |
| 4231144 | Method of converting a van-type vehicle to a multi-passenger commercial transportation vehicle A method for converting a standard, production van-type vehicle to a multi-passenger commercial transportation vehicle whereby the chassis body, front passenger door and roof of a production van-type vehicle are transformed to a new commercial multi-passe... | 11/04/1980 |
| 4231145 | Method and apparatus for attaching two objects Method and apparatus for attaching a transducer to an object having characteristics to be measured. At least two attachment elements each including a number of pointed members are interconnected by a sensing element. Each attachment element includes a mov... | 11/04/1980 |
| 4231146 | Method of making a tip for a ball point pen In a tip for a ball point pen including a cylindrical metallic tip body having a pointed end, a ball receiving hole having its opening at the pointed end of the tip body, a ball supporting seat of a plastic held in the bottom of the ball receiving hole, a... | 11/04/1980 |
| 4231147 | Methods and apparatus for installing clutches in automatic transmissions The present invention provides methods and apparatus for installing a cylindrical body, having a plurality of external axial splines, within a stack of annular plates, said plates having radially inner teeth for meshing with said splines. The method inclu... | 11/04/1980 |
| 4231148 | Elevator erection method The present invention comprises a method of erecting an elevator system for a building comprising fabricating an elongate elevator shaft framework section, and mounting the framework section in an upright position at the building site. After construction ... | 11/04/1980 |
| 4231149 | Narrow band-gap semiconductor CCD imaging device and method of fabrication A monolithic charge-coupled infrared imaging device (CCIRID) is fabricated on N-type HgCdTe. A native oxide layer on the semiconductor is used, in combination with ZnS to provide first level insulation. An opaque field plate over first level insulation is... | 11/04/1980 |
| 4231150 | Method of tuning a flyback transformer for minimum ringing The method of tuning a flyback transformer in a cathode ray tube control system, for minimum ringing, which comprises the steps of adjusting the lateral position of the center plane of the high voltage or secondary coil, with respect to the center plane o... | 11/04/1980 |
| 4231151 | Method and apparatus for manufacturing a filament served bondable conductor A filament served bondable conductor is described. A metal wire is wrapped with an insulating yarn then suspended between two supports. After passing over the first support, the wire is immersed in a varnish, excess varnish is removed, and the varnish is ... | 11/04/1980 |
| 4231152 | Method and apparatus for press-fitting caps on electronic parts and the like Method and apparatus are provided for press-fitting caps on electric parts and the like. The apparatus has a device for feeding component rods of electric parts to a rod-conveying wheel provided on its circumference with lateral equally spaced grooves for... | 11/04/1980 |
| 4231153 | Article placement system An article placement system for applying a plurality of articles to a substrate, each article placed in a different location and perhaps at a different angular orientation on said substrate. The system includes a base with a walking beam mounted to the ba... | 11/04/1980 |
| 4231154 | Electronic package assembly method A method for making an electronic package assembly of the type having an insulator pin carrier, a thin, i.e. substantially five microns, flexible printed circuit (PC) polyimide member having printed circuit conductors bonded to the heads of the pins of th... | 11/04/1980 |
| 4231155 | Electrically powered paint scraping tool The object of the invention is to provide a portable hand operated electrically powered paint scraper compact, sturdy maneuverable and with a positive reliable drive to reciprocate a scraping blade the working surface of which may be both protected and re... | 11/04/1980 |
| 4231156 | Guide line holder A tool for holding lines such as are used in guiding paving machines, in earth moving and leveling, and the like, comprising a stake, ordinarily a length of cylindrical metal rod or tubular stock with a ground penetrating point, a line holder of similar, ... | 11/04/1980 |
