Bizarre Patents
A kissing shield comprised of a thin, flexible membrane and a frame or holder.
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 |
| 4938605 | Apparatus and method for mixing and continuous extrusion of a plastic mass An apparatus for the mixing and continuous extrusion of a plastic mass having a first stage in which an intermittently operating mixer receives the starting materials batchwise and a second stage having a screw extruder which is supplied at periodic inter... | 07/03/1990 |
| 4927591 | Container, method and apparatus for manufacturing the same A hollow body (e.g. a container) as well as a method and an apparatus for its manufacture in which an axially directed wall of the body primarily is made of oriented and/or crystallized plastics material. A tubular preform (10d) is fixed in a circumferent... | 05/22/1990 |
| 4921561 | Process for manufacturing embossed articles of synthetic resin A process and apparatus for manufacturing an embossed article of synthetic resin by heating a synthetic resin sheet to a softening temperature; overlaying the heated synthetic resin sheet on an embossing die made by an electro-chemical molding process and... | 05/01/1990 |
| 4916757 | Plastic glove having a trigger finger and provided with lateral receptacles and related method and tooling A glove is formed of plastic films which are sealed together along lateral edges between which is formed a peripheral seal in the form of a contour providing thumb, forefinger and further receptacles. The further receptacle is intended to accommodate thre... | 04/17/1990 |
| 4916632 | Vibration control apparatus A vibration control apparatus detects a physical value influencing characteristics of a suspension supporting a vibrating body and a state value representing movement of the suspension, calculates an optimal target control force in consideration of an ext... | 04/10/1990 |
| 4913226 | Heat exchanger and associated method A heat exchanger having an inlet duct for admission of a first fluid to be heated, an outlet duct for discharge of the first fluid after heating thereof, the ducts being arranged in substantially parallel relation, and an assembly of a plurality of heat e... | 04/03/1990 |
| 4909640 | Ball bearing This invention is to provide a ball bearing which has a performance close to that of the conventional radial ball bearing, is simple in the formation and is low in the cost for such bearing as for fitting the disc of a disc recording and reproducing devic... | 03/20/1990 |
| 4907154 | Vibration control apparatus In a vibration control apparatus, a physical value influencing characteristics of a suspension for supporting a vibrating body and a state value representing movement of the suspension are detected. A frequency distribution of these values with respect to... | 03/06/1990 |
| 4905642 | Siamese-type cylinder block blank and apparatus for casting the same A siamese-type cylinder block blank which is composed so that upon the pouring a molten metal under a pressure, a sleeve of cast iron is cast in each cylinder barrel of a siamese-type cylinder barrel made of an aluminum alloy and consisting of a plurality... | 03/06/1990 |
| 4905249 | Catalytic converter A closed loop carbon dioxide laser system includes a catalytic converter in the form of a conduit with an annular recess which is filled with a catalyst of platinum-plated alumina pellets that are externally heated.... | 02/27/1990 |
| 4902536 | Method of producing a protective layer on a structural part A method for the production of a protective layer on a structural part against thermal, chemical and/or mechanical stresses, particularly structural parts of complex shape such as turbine blades in which powder of a starting material for the layer is susp... | 02/20/1990 |
| 4900156 | Twin screw extruder with thread-free mixing zones Apparatus for mixing material in a twin screw extruder by longitudinally advancing material by the interengaging threads of two screws in the housing of a twin screw extruder such that a plurality of separate streams of material are advanced by the thread... | 02/13/1990 |
| 4897996 | Low-loss cyclically-operating pressure-responsive bypass valve for fixed displacement pump flow control In a system for varying the output flow from a constant rate feed pump with low losses by chopping the said output flow into one flow fraction supplied to the load as a power flow and into another flow fraction returned as a pressureless flow, the loads a... | 02/06/1990 |
| 4895458 | Bearings for wind generator rotors A bearing system for mounting a wind generator rotor on a stub shaft comprises two axially spaced bearing units each made up of a skew joint bearing, a needle or cylindrical roller bearing placed around it and a thrust bearing arranged to the side of thes... | 01/23/1990 |
| 4895318 | Magnetic tape transport with simplified threading arrangement and related method A tape transporter is provided with elements to straighten out the normally sinuous tape supply and tape take-up paths of a magnetic tape apparatus in order to facilitate the threading of a magnetic tape into a tape reading and/or recording system. This c... | 01/23/1990 |
| 4893514 | Device for measuring forces in metal spinning lathes For the continuous measurement of the thrust forces produced by the spinning rolls on the workpiece to be extended while the spinning rolls are rotating a measuring rod is provided, which has its one end fixed coaxially on the spindle within a hollow spin... | 01/16/1990 |
| 4894086 | Method of producing dispersion hardened metal alloys A method of producing dispersion hardened metal alloys which incorporate highly reactive metals or their alloys whose oxides are not adapted to be easily reduced. According to the method, the highly reactive metals of their alloys are added as powder part... | 01/16/1990 |
| 4893674 | Method of producing a tubular distributor of a heat exchanger from juxtaposed porous strips of material A method for manufacturing a tubular distributor of a heat exchanger in which the distributor is formed by layers of material between which the ends of heat exchange tubes of a matrix are secured in fluid-tight manner. The layers are made of fibers which ... | 01/16/1990 |
| 4891035 | Slide type universal joint having longitudinal grooves in which rollers travel without tilting In a slide type universal joint mounted between two transmission shafts between which power is transmitted, to connect both the shafts in a pivotable manner, a plurality of axially extending transmission grooves are provided in an inner peripheral surface... | 01/02/1990 |
| 4887424 | Propfan turbine engine A propfan turbine engine having a reduction gearing for the propfan rotors is provided with a lubricating system of its own for the reduction gearing, the system being arranged axially between the gas turbine and the reduction gearing and formed as an ann... | 12/19/1989 |
| 4886380 | Piezoelectric controlled electromagnetically driven printing Dot-matrix printer for printing on a paper resting against a platen includes a bendable piezoelectric lamina, means for fixedly supporting the bendable piezoelectric lamina along a first edge, a planar rerromagnetic member, means for operatively connectin... | 12/12/1989 |
| 4884948 | Deflectable blade assembly for a prop-jet engine and associated method A propeller for a prop-jet engine having a propellor blade formed as a hollow shell member whose outer surface has an aerodynamic blade profile, the propellor blade being secured to a rotor via an adjustment pin. The hollow shell member is internally brac... | 12/05/1989 |
| 4883370 | Rotary structure A rotary structure adapted to be used as a spindle unit for a miniature motor or miniature rotor or as a tape guide roller for a VTR. In the structure of the rotary mechanism, instead of a conventional expensive radial ball bearing, a groove of a semicirc... | 11/28/1989 |
| 4883921 | Cable jointing clamp Jointing clamp (1) intended for electrical conductors and comprising an insulating, conical outer housing (2) having arranged therein a similarly conical inner sleeve (3). The narrow end of the outer sleeve (2) has located internally therein a seat (7) ag... | 11/28/1989 |
| 4881932 | Method and apparatus for manufacturing plastic film bag with special flap arrangement Apparatus and methods are provided for manufacturing plastic film bags with two-piece flaps. A slitting tool slits the flap portion of a longitudinally displaced film strip arrangement and a spacing tool displaces one of the resulting sections to form a g... | 11/21/1989 |
| 4882197 | Method for depositing a lubricant layer to manufacture a magnetic recording medium In a method of depositing a lubricant layer on a protection layer of a magnetic base, a lubricant is vaporized in a hollow space which is kept at a predetermined temperature under ambient pressure. The predetermined temperature is determined between 100°... | 11/21/1989 |
| 4880121 | Method and apparatus for the sorting of material A method and apparatus for the sorting of material in which a rigid rack includes a plurality of horizontally extending elements arranged in vertically spaced arrangement, and a plurality of bags are removably supported on the horizontally extending eleme... | 11/14/1989 |
| 4878566 | Method and mechanism for selectively transmitting and interrupting delivery of power A method and mechanism for selectively transmitting and interrupting power between an input shaft and an output shaft arranged in coaxial relation in which a rotary member is coupled to one of the shafts to provide first and second states therebetween and... | 11/07/1989 |
| 4878753 | Method for measuring double print offset in printing systems The specification describes a method for measuring the offset between regular images of, for instance, halftone dots and double images thereof, in which a test screen pattern is printed along an edge of the paper web to be printed which consists of two ro... | 11/07/1989 |
| 4878821 | Detachable anti-rupture ring for the housing of a turbo power plant An anti-rupture ring is slit axially at least at one location and is provided thereat with clamping devices which permit a rapid tightening and loosening of the anti-rupture ring. In one embodiment, the clamping of the anti-rupture ring can be varied hydr... | 11/07/1989 |
| 4877390 | Degassification device for a screw extruder which processes plastic material A degassification device for a screw extruder which processes plastic material in which the extruder has a hollow housing and an extruder screw rotatable in the housing, the degassification device having a pair of degassification screws disposed adjacent ... | 10/31/1989 |
| 4877376 | Attachment of a rotor blade of fiber reinforced plastic to a metal rotor hub A fiber reinforced thermoplastic propeller is attached to a metallic rotor by an integral shank at the base of the propeller. By virtue of the manufacture of the shank and the propeller as an integral construction, improved transmission of centrifugal for... | 10/31/1989 |
| 4875828 | Turbo-engine having means for controlling the radial gap A turbo-engine having a structure for controlling the radial gap and including an inner casing which surrounds a rotor and is assembled from shell-like parts; parts of this casing have a high thermal mass, are arranged around the rotor blades of the rotor... | 10/24/1989 |
| 4875557 | Brake play resetting device A device for automatically resetting the play between a brake lining and a rotating brake member which is to be braked. The device is able to take into account an increase in the play due to wear as well as a decrease in the play due to overadjustment due... | 10/24/1989 |
| 4875260 | Apparatus for the presettable calendering of tubular knitted fabric Equipment for the calendering of tubular knitted fabric (13) which, in the end step of a processing cycle, allows, by means of a cloth expander device (16), a steaming cxhamber (18) and a flattening, the width of the tubular fabric to be determined and fi... | 10/24/1989 |
| 4871515 | Electrostatic filter The invention provides an electrostatic particle filter in the case of which the collecting electrode is structured in order to make possible a reliable separation of the particles from the gases. The collecting electrode is so designed that a number of w... | 10/03/1989 |
| 4870322 | Electroluminescent panel having a layer of germanium nitride between an electroluminescent layer and a back electrode In an electroluminescent panel comprising a transparent electrode, a back electrode, and an electroluminescent layer between the transparent and the back electrodes, an intermediate layer is interposed between the electroluminescent layer and the back ele... | 09/26/1989 |
| 4868678 | Apparatus for recording a video signal of consecutive fields on a pair of separated tracks A video signal recording apparatus forms closed loop tracks on a rotary recording medium, and records a video signal amounting to one field on each track so that out of two mutually adjacent tracks making up a track pair, a signal related to an odd (or ev... | 09/19/1989 |
| 4867579 | Widely adjustable sliding unit for operating machines A sliding unit adjustable within wide limits for operating machines comprising at least one hollow guide made from an extruded structural shape installed inside supporting elements equipped with revolving elements, which cooperate with sliding surfaces of... | 09/19/1989 |
| 4867412 | Apparatus for the production by powder metallurgy of a section of a header pipe of a heat exchanger Apparatus for the production by powder metallurgy of a heat exchanger block in which two spaced concentric half shells are provided with holes in which profiled pipes are inserted. The profiled pipes are internally supported by pins when metal powder is i... | 09/19/1989 |
