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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 |
| 4890335 | Ventilated welding shield A welding shield is designed to have a flow of ventilating air directed across both exterior and interior surfaces of a viewing lens forming a part of the shield. Both integral and separable air supply arrangements are used, and all of the supplied air is... | 01/02/1990 |
| 4890336 | Welding protected coveralls A pair of coveralls is provided with fire-proof material along the chest, arm, thigh and zipper areas in affording degrees of protection against burning and/or other injuries to a wearer during typical welding operations.... | 01/02/1990 |
| 4890337 | Pants-like garment incorporating a stretchable construction The present invention provides a pants-like garment having a stretchable construction. The garment includes a waistband configured to encircle the waist of a wearer and a covering portion configured to encircle the trunk of the wearer. The covering portio... | 01/02/1990 |
| 4890338 | Supportive fastening means for a protective helmet A helmet fastening system for protective helmets includes a drawstring system which holds the helmet smoothly to the head of the wearer in the forehead and temple areas and in the neck area simply by tightening only a chin strap. Two drawstring loops are ... | 01/02/1990 |
| 4890339 | Splash suppressor A device to create such turbulence in water normally held motionless in a toilet that splashing and spattering is suppressed when solids, liquids, or both are inserted in a traditional manner. This device includes a submerged, motor driven rotor which whe... | 01/02/1990 |
| 4890340 | Self-contained hand-held bidet A self-contained hand-held bidet device, for providing lavaging action with portability and convenience. The device comprises a housing having a motorized pump with a power source and switch for activating the pump. The pump draws fluid from a reservoir m... | 01/02/1990 |
| 4890341 | Invalid's bathtub An invalid's bathtub includes a door that has a rail system that is movable from a first position in which it acts as a guide and safety system for the invalid as he enters or leaves the tub, into a second position in which it forms a continuation of a sa... | 01/02/1990 |
| 4890342 | Swimming pool protector and converter Apparatus for converting a swimming pool into a skating rink and preserving the structural integrity of the pool, the pool comprising a water basin having a rim extending around the top edge of the basin, the basin being filled with water up to a predeter... | 01/02/1990 |
| 4890343 | Portable decontamination tank A portable decontaimination chamber to be used by hazardous material decontaminators. The unit has a tubular substructure that is readily assembled and has a vessel portion formed from a plastic film attached to the superstructure. The base of the vessel ... | 01/02/1990 |
| 4890344 | Air control system for air bed An air supply and control apparatus has an air pump to supply air under pressure to air mattresses of an air bed. A hand control having a pair of valves functions to control the operation of the air pump to supply air to the air mattresses and vent air fr... | 01/02/1990 |
| 4890345 | Bed sheet stuffing device A bed sheet stuffing device has an elongated thin flat shaft member and a clamp element attached on a leading end portion of the shaft member adapting the device for use in stuffing a corner of a bed sheet under a waterbed mattress. The shaft member and c... | 01/02/1990 |
| 4890346 | Infant crib enclosure An infant enclosure for use with a conventional baby crib which includes a sheet and a soft bumper which is detachably securable to the sheet to extend across the crib to establish a smaller enclosure within the crib for receiving small children such as n... | 01/02/1990 |
| 4890347 | Interchangeable detachable decorative applique This detachable decorative applique piece is designed to be fastened to a comforter or bedspread to enhance their decorative appearances. Primarily, an ornamental design combination composed of colorful fabric including attached peel-away fasteners that m... | 01/02/1990 |
| 4890348 | Razor cleaning device A razor cleaning device has a suction cup base which supports a stem. The end of the stem supports a cleaning head which has a plurality of bristles. The bristles are disposed in an appropriate angle so that a blade positioned against the bristles in a na... | 01/02/1990 |
| 4890349 | Tooth care atricle such as a toothbrush with replaceable insert A toothbrush comprises a handle with a socket at one end. A brush-carrying insert includes a tongue removably mounted in the socket. A brush protrudes forwardly from the tongue. Adjacent a location where the brush is joined to the tongue, a laterally outw... | 01/02/1990 |
| 4890350 | Emergency paint brush A brush-bristle carrying device that is attachable to a handle member to form a brush. A thin layer of an adhesive overlies a flexible strip of material and is protected by a flexible protective cover that is peeled away when a brush is to be made. A bund... | 01/02/1990 |
| 4890351 | Scrapers, especially for griddles, hotplates and the like A hand scraper for griddles and the like has a support (11) for a blade (12) removably secured by a screw (13) projecting forwardly and downwardly from a handgrip (10), and a guard (14) which is conveniently formed of stainless steel rod, is spaced from t... | 01/02/1990 |
| 4890352 | Backwasher A back washer is provided and consists of a sponge rubber washing member affixed to a flat flexible rubber base plate that is removably mounted to a flat surface so that a person can wash their back against the washing member when in shower and bathtub.... | 01/02/1990 |
| 4890353 | Paint brush and paint roller holder A paint brush and paint roller holder adapted to be releasably connectable onto the upright end wall of a paint tray. In one embodiment, the invention includes cooperating first and second molded members which are cooperatively clampable together on eithe... | 01/02/1990 |
| 4890354 | Window shade lock device The window shade lock device includes a handle having a round or elongated hand grip end and a slide connector extending forwardly thereof. The slide connector is pivotally secured, preferably off center, to the preferably generally rectangular body of a ... | 01/02/1990 |
| 4890355 | Releasably mountable hand grip for handles A releasably mountable hand grip adapted to be mounted to a handle(s) associated with a plastic bag, totebag, collapsible luggage, briefcase and the like is disclosed. The hand grip includes an elongated tubular body having an inner and outer wall and opp... | 01/02/1990 |
| 4890356 | Hinge for the connection of the shaft of a temple with a hinge piece of spectacle frames as well as a process for the production of such a hinge In the case of a hinge for the connecting of a temple shaft with a hinge piece of a spectacle frame, at least one hinge eye is located on only one of these elements (the hinge piece or the shaft of the temple). The hinge pin running through this eye is de... | 01/02/1990 |
| 4890357 | Apparatus for cleaning textile fiber material Apparatus for cleaning textile fibers such as cotton, etc. is disclosed wherein the fibers are conveyed by an air current to an opening roller cooperating with a grate, and the transport air is separated at a feed box. The separated air (17) serves for di... | 01/02/1990 |
| 4890358 | System for automatically conveying cotton laps from a ribbon-lap machine to a combing machine assembly The system comprises, downstream of a ribbon-lap machine, a cradle lifting device for taking up a lap roller from a lap roller collecting frame, a gripper taking up device being moreover provided which is adapted to remove a lap roller from the cradle lif... | 01/02/1990 |
| 4890359 | Apparatus for monitoring lap formation on a roll for guiding a textile sliver The apparatus monitors lap formation at a pair of rolls guiding a slubbing or sliver in a drafting arrangement for spinning machines. In the event of a lap or coil forming, for example, on a pressure roll, a piston rod of a piston is shifted away until a ... | 01/02/1990 |
| 4890360 | Band clamp with tightening elements formed separately This invention relates to a clamp, adapted to be dismounted and re-used, constituted by a metal band wound on itself, comprising respectively in the vicinity of each of its ends, on the one hand, two radial stops directed outwardly of the band to constitu... | 01/02/1990 |
| 4890361 | Telephone cord straightener A free-floating anchor sleeve is positioned on a telephone cord between the base unit and handset of a telephone. The weight of the straightener causes it to always find the low spot in the cord and thereby keep tension on each of the lengths of cord ther... | 01/02/1990 |
| 4890362 | Eyelet and method of attaching the same An eyelet having a seat and an eyelet body. The seat has a central hole formed of a tapered cylindrical portion extending and narrowing in the opposite direction of insertion, a curved annular crest extending in the inserting direction from the cylindrica... | 01/02/1990 |
| 4890363 | Safety whip checks for hoses A safety attachment to restrain the whiplashes of hoses that become inadvertently uncoupled. A polyproylene rope harness is made to form loops that are engaged about the hoses. The loops increase in size for installation over the coupling element of the h... | 01/02/1990 |
| 4890364 | Split ring springs for snap fasteners and method of manufacturing the same A split ring spring for snap fasteners has a burr extending from each end of the ring spring in a direction parallel to the imaginary central axis of the ring spring. When a stud member is snapped with a socket member in which the split ring spring is inc... | 01/02/1990 |
| 4890365 | Apparatus for heating film webs simultaneously in two axial directions An apparatus for simultaneously treating film webs biaxially is described. Film edges are clamped into tentering clamps running around in an endless track. The individual tentering clamps are interconnected with one another by an upper and a lower chain, ... | 01/02/1990 |
| 4890366 | Cultured marble casket and method of producing same A light weight cultured marble casket is provided which is aesthetically pleasing in appearance, durable in construction and resistant to deterioration by the elements. The casket comprises a body member having an exterior portion formed of cultured marbl... | 01/02/1990 |
| 4890367 | Crematory loader A crematory loader apparatus is provided for loading objects to be incinerated into a preheated crematory. The loader has a frame along with a slidable support surface attached to the frame for supporting an object thereon which slides in a track supporti... | 01/02/1990 |
| 4890368 | Warper with tension isolator and tension controller A textile machine in the form of a warper for drawing multiple strands from a creel and for winding the strands on a rotatable beam which forms part of the warper. Located between the creel and the beam is a strand guide and tension isolator comprising a ... | 01/02/1990 |
| 4890369 | Method of manufacturing saw devices A method of manufacturing surface acoustic wave devices includes providing a dielectric substrate with a plurality of channels which open onto a substrate surface region and each of which accommodates a metallic electrode, the electrodes being recessed be... | 01/02/1990 |
| 4890370 | Manufacturing method for integrated resonator A manufacturing method for an integrated resonator is disclosed wherein a mass of O+ ions are implanted into a silicon monocrystal substrate from one side thereof, a buried SiO2 layer is formed by annealing the ion implanted substrat... | 01/02/1990 |
| 4890371 | Pallet changer for machining center A pallet changer device is associated with a milling or machining device and has a table that indexes 180°. A pallet is held in an upright position for loading of fresh workpieces, while machining is carried out automatically on workpieces on a similar p... | 01/02/1990 |
| 4890372 | Press roll for a paper machine A press roll in a paper machine comprising a body cylinder mounted between two end pieces and fastened thereto, and a press cylinder surrounding the body cylinder and spaced apart therefrom. The press cylinder, which is rigid and receives the radial force... | 01/02/1990 |
| 4890373 | Pipe repair apparatus and method A quick, easy, and permanent inline repair of a ruptured pipe is accomplished by the use of one of a firmly of rigid covers shaped to cover the rupture and adhering the rigid cover in sealing relation over the rupture. A utility tool is disclosed that may... | 01/02/1990 |
| 4890374 | Method for utilizing merchandise display shelves Replacement covers for repairing merchandise shelving include a planar member of a size generally the same as the shelf to be covered, and at least one depending flange which covers the front edge of the merchandise shelf. In addition, the replacement cov... | 01/02/1990 |
