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| Number | Title | Issue Date |
| 4173792 | Adjustable length simulated knotted necktie combination An adjustable length simulated knotted necktie combination composed of a necktie length having a front display tail portion and an opposite rear tail portion with an intermediate portion and an inverted trapezoidally shaped body of simulated knot shape as... | 11/13/1979 |
| 4173793 | Knot retaining implement for necktie or scarf A knot retaining implement for a necktie or scarf comprises a substantially V-shaped retaining portion of wire and a hook portion which extends backwardly from each end of the retaining portion. A chain may be attached to the hook portion for preventing a... | 11/13/1979 |
| 4173794 | Buckleless belt A buckleless belt employing a closure device or fastening means which positions and holds the two ends of a belt. The closure device virtually completely concealed from the front and affords a minimum additional thickness to the belt in the overlapping re... | 11/13/1979 |
| 4173795 | Racquetball or squash safety mask A racquetball or squash safety mask having a primary framework assembly, a secondary framework assembly, a grid network covering the secondary framework assembly, and a head strap assembly. The primary framework assembly has a top framework member, a bott... | 11/13/1979 |
| 4173796 | Total artificial hearts and cardiac assist devices powered and controlled by reversible electrohydraulic energy converters Total artificial hearts and circulatory assist devices, including left ventricular assist devices. The invention relates to electrohydraulic energy converter systems, whereby electric energy from a power source, which may be a battery or other source, is ... | 11/13/1979 |
| 4173797 | Prosthesis for arthroplasty of the hip A hip prosthesis comprising a thin metal cotyloid cup, substantially spherical in form, the dimensions of the outer surface of which are substantially equal to those of a the cotyloid cavity, and which is provided with a peripheral flange for abutting on ... | 11/13/1979 |
| 4173798 | Intra-ocular lens An improved iris plane intra-ocular lens for implantations into an aphakic human eye wherein the back side of the haptic crotch regions of each of the horizontal haptics is substantially chamfered for substantially decreasing warping of the iris at the pu... | 11/13/1979 |
| 4173799 | Water level controller for swimming pool gutter A pool having a gutter around its perimeter, the gutter being formed in part by an inner lip. Openings spaced around the perimeter of the pool are formed in the inner lip, and means are provided to close the openings when the water level in the gutter rea... | 11/13/1979 |
| 4173800 | Low-profile syphon trap A sanitary syphon gas trap particularly adapted for use in association with squat-type water closets, which are installed at floor grade level, which trap has an inlet arm and an outlet arm of circular cross-section, and an angularly disposed seal arm in ... | 11/13/1979 |
| 4173801 | Apparatus for flushing toilets A double valve construction selectively provides a full flush or a partial flush from the tank of a toilet. The apparatus, which may be utilized to modify existing toilet water closets, includes a manifold mounted on the tank in communication with an outl... | 11/13/1979 |
| 4173802 | Toilet seat A hinge arrangement for detachably connecting a lavatory seat and cover to a lavatory stool employs a holder secured to the stool and a pair of hinge pins each having a pair of brackets secured thereto, one pair for attachment to the seat and one to the c... | 11/13/1979 |
| 4173803 | Sofa-sleeper An improved sofa-sleeper structure having a foldable bed frame, the bed frame including a cloth front deck and a cloth rear deck. The cloth decks are fixed one to the other, e.g., by stitching, at their adjoining edges, and are attached by tension springs... | 11/13/1979 |
| 4173804 | Floating installation connected to a stationary underwater installation through at least one flexible pipe The flexible pipe forms at least one loop portion between the two installations, an element of negative buoyancy being suspended from said loop portion and permanently maintaining the flexible pipe under tension.... | 11/13/1979 |
| 4173805 | Brushes A brush comprises a frame, able to move in a substantially horizontal plane. A driving device is provided to cause the frame to oscillate in the horizontal plane. From the frame hangs a number of flexible straps which wipe over the vehicle and effect a cl... | 11/13/1979 |
| 4173806 | Apparatus for cleaning conduits or the like Apparatus for cleaning straight or arcuate conduits has a housing which fits with clearance into a conduit and has an elastic washer slidably engaging the internal surface of the conduit so that the pressure of a fluid which fills the conduit behind the h... | 11/13/1979 |
| 4173807 | Cleaning implement A cleaning implement, especially vacuum cleaner, with a brush for incorporation in a vacuum cleaner nozzle, which has a shaft with bristles mounted at its ends in bearings in an implement housing. In order to restrict penetration of hairs and like foreign... | 11/13/1979 |
| 4173808 | Soot blower for tube bundle in pressurized enclosure A soot blower for use in a tubular heat exchanger, gasifier or reactor that is installed in parallel alignment with a bundle of elongate tubes therein. The soot blower is adapted to eject a jet of steam radially over the outer surface of said tubes to rem... | 11/13/1979 |
| 4173809 | Automatic vacuum cleaner In a preferred embodiment, a battery embodying and driven vacuum cleaner having a battery-recharging unit, having a pivoted and pivotably-driven driven wheel indirectly driven by an electric motor powered by the battery, and having other free-wheeling sup... | 11/13/1979 |
| 4173810 | Twin-wheel castor A twin-wheel castor has a moulded body with a through bearing bore in which stub axles of twin moulded wheels are received. The axles have circumferential grooves respectively engaged by two axially-spaced circumferential series of internal body projectio... | 11/13/1979 |
| 4173811 | Ski-tie device A ski-tie device comprises a flat housing from which an elastic band can be withdrawn laterally to engage a similar device on another ski of the pair. Integral with the elastic band is a pair of resilient strips anchored in the housing and the band is pro... | 11/13/1979 |
| 4173812 | Apparatus for calendering tubular knitted fabrics The disclosure relates to an apparatus for finishing of tubular knitted fabric including means for laterally distending the fabric to flat, two-layer form by passing it over a spreader frame, and discharging the fabric from the spreader frame into a pair ... | 11/13/1979 |
| 4173813 | Bearing puller A special tool removes bearings with hexagonal holes from bearing cups. A spool with a hexagonal flange on its end is inserted through the hexagonal hole and is locked behind the bearing. A bolt, threaded through the spool, forces the bearing out of the c... | 11/13/1979 |
| 4173814 | Pad member method of manufacture A pad, especially an athletic pad, and particularly a pad for use in contact sports to protect the wearer, in which a film of plastic material is deposited on a support and then a body of the same material with a blowing agent therein is placed on the fil... | 11/13/1979 |
| 4173815 | Method of joining two abutting metal members together Method of joining two abutting metal members together by a single reciprocating head having a first part for lancing and forming and having a second part for staking, the method comprising the steps of supporting the members in abutting relation with supp... | 11/13/1979 |
| 4173816 | Method of making a hose clamp with tangential screw A thin sheet metal strip having a thickness less than 0.015 inch, forms a part-cylindrical portion which integrally connects a folded first ear portion and a folded second ear portion. An integral tongue projects from the folded first ear portion and has ... | 11/13/1979 |
| 4173817 | Machining center with automatic tool changer A machining center type machine tool which is a four-axis, horizontal spindle machining center with a carousel-type automatic tool changer and which is adapted to be controlled by a computer numerical control system. The machining center can perform a var... | 11/13/1979 |
| 4173818 | Method for fabricating transistor structures having very short effective channels A method, including a sequence of process steps, for fabricating insulated gate field effect transistors having very short effective channel lengths. In a first version of the method, the source and drain regions of the device are opened in one process st... | 11/13/1979 |
| 4173819 | Method of manufacturing a dynamic random access memory using MOS FETS A dynamic Random Access Memory consisting of pairs of adjacent one transistor/one capacitor memory cells. The gate electrodes of the MOS FETS in each pair of adjacent memory cells are coupled and further connected to an address line at only a single conta... | 11/13/1979 |
| 4173820 | Method for forming a solar array strip A method for forming a solar array strip including the steps of depositing solder pads on printed circuitry deposited on flexible substrate storing the resulting substrate on a drum, withdrawing the substrate from the drum and incrementally advancing it a... | 11/13/1979 |
| 4173821 | Method of producing semiconductor devices In the process of fabrication of semiconductor devices, a lead frame hoop supplied from a supply reel is set forward to successively enter into a series of fabricating steps. After having been subjected to pellet bonding, wire bonding and resin-molding, i... | 11/13/1979 |
| 4173822 | Method for assembling a stator for an electric machine A method for assembling a stator for an electric machine having a permanent magnet for generating a magnetic field in an air gap. Assembly of the stator is performed with the aid of a plunger, the cross-section of which corresponds to the cross-section of... | 11/13/1979 |
| 4173823 | Resistance heater for a pizza carton In the fabrication of a resistance heater for a carton for packaging a pizza, an aluminum metallized sheet is adhered to a paperboard panel, a generally U-shaped strip of arc-sprayed zinc is applied to three edge portions of the upwardly facing electrical... | 11/13/1979 |
| 4173824 | Apparatus for automatically assembling articles, such as clips An apparatus and method for assembling articles such as clips, comprising first and second components formed from metallic sheet stock, said apparatus including an outer annular member and second and third dial members mounted within the annular member, t... | 11/13/1979 |
| 4173825 | Nutcracker The invention provides an adjustable cracking device for cracking nuts of a wide variety of sizes. The device comprises first and second elongate rigid members, each including an elongate handle portion and having a curved serrated gripping surface adjace... | 11/13/1979 |
| 4173826 | Apparatus for cutting pills A pill cutter of a relatively simple construction, including an upper and a lower member which are hingedly or otherwise affixed together at one end thereof so that one member may be pivotally rotated with respect to the other. On the inner facing surface... | 11/13/1979 |
| 4173827 | Control for dental handpieces Module control block assemblies are clamped in a bank to individually control to handpieces drive air and air and water coolants and also supply drive air pressure to a gauge through an oversize aligned bore in blocks of the assemblies through which exten... | 11/13/1979 |
| 4173828 | Interchangeable tool operating apparatus with plural motion Novel tool operating apparatus is exemplified in a dental treatment device capable of driving alternatively at least a first tool and a second tool, each tool being intended to execute a different form of motion, with a single tool driving means to which ... | 11/13/1979 |
| 4173829 | Drafting instrument A template for drawing accurately-positioned circular or straight lines regardless of the tip angle and diameter of the writing instrument used therewith has specially-shaped holes positioned at respectively different, predetermined spacings from a refere... | 11/13/1979 |
| 4173830 | Dryer for mesh baskets A dryer for automated washing and drying of mesh or perforated bottom trays such as those used for bakery goods, which includes a source of air under relatively low pressure and has a means to direct air at a relatively high velocity through the mesh or o... | 11/13/1979 |
| 4173831 | Egg drying apparatus An egg drying apparatus is disclosed incorporating an improved laminar air flow for more effectively drying eggs. The orifices for discharging and directing air towards the eggs to be dried have a coefficient of discharge of at least about 0.8. The orific... | 11/13/1979 |
