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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 |
| 8061241 | Indirect cooling of a cutting tool A cutting tool having a cutting element such as an insert is cooled indirectly by a micro-channel heat exchanger that is mounted against the rear face of the insert. The heat exchanger is formed with an internal cavity that receives a coolant such as a cryogen. The ... | 11/22/2011 |
| 7938047 | Tube end milling head A tube end rotary milling head with cylindrical cutting pieces removably secured to the milling head by forces exerted by the material being cut and by friction without any separate securing elements. ... | 05/10/2011 |
| 7607374 | Tube milling head Tube ends such as those of boiler tube banks, are prepared utilizing any of various combinations of processes which include a step of micro-diameter tube film removal from a portion of a tube end, including an area below a beveled segment, or segment to be beveled. ... | 10/27/2009 |
| 7383757 | Method and device for cutting and deburring tubes, particularly plastic and cardboard tubes The invention relates to a method and a device for cutting and deburring tubes, particularly plastic and cardboard tubes, in which in a clamp after the production of a cut edge on a starting tube and a tube piece, an inner and outer bevel are produced, a starting tu... | 06/10/2008 |
| 7313992 | Tube milling head Tube ends such as those of boiler tube banks, are prepared utilizing any of various combinations of processes which include a step of micro-diameter tube film removal from a portion of a tube end, including an area below a beveled segment, or segment to be beveled. ... | 01/01/2008 |
| 7245981 | Material handling system with saw and wheel drag mechanism A material handling system with a drag mechanism including a wheel for a table saw that controls the orientation and speed of material as it moves through the system. ... | 07/17/2007 |
| 7124673 | Horizontal cutter of double-bodied bottles attached to each other at the neck A horizontal cutter of double-bodied bottles attached to each other at a neck which comprises means (2) for advancing the bottles (3) and a cutting device (1) of the neck of the bottles. The cutting device (1) comprises a pair of blades (... | 10/24/2006 |
| 7116071 | Power tool and motor controller A method and apparatus to automatically reverse the motor of a power tool, such as a dispensing gun or similar tool. In some constructions, a controller automatically reverses the direction of plunger movement and removes the plunger from contact with the back wall ... | 10/03/2006 |
| 7093525 | Chipless trimming of plastic bottles Method and apparatus for trimming the neck of plastic bottles includes means for rapidly rotating a cutting blade around the neck being trimmed while progressively moving the cutting blade through the thickness of the neck. During the cutting, a flat surface of the ... | 08/22/2006 |
| 6981437 | Pipe cutting machine A pipe cutting machine comprises a clamping device for holding a pipe to be cut and a pipe cutting apparatus for cutting the pipe by revolving a rotating disc-like cutting blade around the circumferential surface of the pipe held by the clamping device. The pipe cut... | 01/03/2006 |
| 6955507 | Tube milling head Tube ends such as those of boiler tube banks, are prepared utilizing any of various combinations of processes which include a step of micro-diameter tube film removal from a portion of a tube end, including an area below a beveled segment, or segment to be beveled. ... | 10/18/2005 |
| 6952988 | Method and apparatus for trimming containers Method and apparatus for trimming a container having an open end wherein the container is held during the trimming operation, including a multi-station assembly for holding the container to be trimmed stationary during trimming, ejecting the trimmed portion and ejec... | 10/11/2005 |
| 6817276 | Apparatus for forming bridges in tamper-indicating closures A tamper indicating closure comprising a base wall and a peripheral skirt having an internal thread adapted to engage the threads of a container wherein a tamper indicating band is provided on the skirt by a plurality of circumferentially spaced bridges. The band in... | 11/16/2004 |
| 6755101 | Low profile in-line beveler A compact, low-profile, in-line beveling tool suitable for use in a confined space, such as a tightly packed array of tubes. The tool is inserted within a workpiece via a feeding mechanism, such as a worm gear arrangement, and is secured to the workpiece via an inte... | 06/29/2004 |
| 6619162 | Device for cutting tubes Specific lengths of tube sections have to be severed from a run of spiral seam tubes being produced, in order to facilitate handling and storage. A cutter, with which sections of tubes can be severed cleanly without the formation of burrs from the run of ... | 09/16/2003 |
| 6609446 | Separating apparatus, separating method, and method of manufacturing semiconductor substrate When a bonded substrate stack prepared by bonding a first substrate in which a single-crystal Si layer is formed on a porous layer, and an insulating layer is formed on the single-crystal Si layer to a second substrate is to be separated at the porous lay... | 08/26/2003 |
| 6581498 | Device for removing the filter medium from the spool of an oil filter and method of use A device for removing the filter medium from the spool of an oil filter, includes a spindle assembly having (1) a spindle which is shaped and dimensioned to receive the hole in the first end of the spool, (2) a plurality of bearings, and (3) a cutter. A h... | 06/24/2003 |
| 6536313 | Method for making insert for rotary cutter A method for making a cutting insert for use in an ID rotary cutter includes obtaining the profile of a convex surface portion of a finished part to be milled with the cutter, translating the profile a minimum distance away from a reference axis for the c... | 03/25/2003 |
| 6536314 | Device for continuous chipless separation of single identical rings from tubular workpieces A device for continuous chipless separation of single identical rings from a tubular workpiece, includes at least two cutting rollers which are placed about the tubular workpiece, and which operate in a same direction and are interconnected by a positive ... | 03/25/2003 |
| 6502486 | Method for producing steel rolling bearing rings A method for producing steel rolling bearing rings, starting from a hot-rolled tube, the structure of which is similar to a spheroidized structure and from which rings of the same continuous length are hot-cut while supplying a lubricant and, after coolin... | 01/07/2003 |
| 6481318 | Cutting knife arrangement for use with soft materials A cutting knife arrangement employs a plurality of cutting knife inserts mounted on a common circular cylinder. Cutting knife inserts are mounted on a holder device secured to the outer periphery of the cylinder. The cutting knife inserts have a rectangul... | 11/19/2002 |
| 6418822 | Cut-off apparatus for non-circular tubes A cut-off apparatus for non-circular tubes includes an axially movable carriage supporting one or more cutter assemblies and a drive system for driving the carriage synchronously with an advancing tubes. The advancing tube is received over a cutting mandr... | 07/16/2002 |
| 6386079 | Method and apparatus for knurling a workpiece, method of molding an article with such workpiece, and such molded article A method and apparatus for knurling a workpiece in which the knurl pattern includes grooves of at least two different configurations. The apparatus includes a knurl wheel holder that allows angular rotation of the knurl wheel about the holder longitudinal... | 05/14/2002 |
| 6383567 | Multiple cut to core tape roll A roll of web and a method of making it has a total web width that is divided into n+1 portions by n circumferential slits. Each portion has a width less than the total web width such that the sum of the width of the portions equals the total web width an... | 05/07/2002 |
| 6357325 | Sealing arrangement A sealing arrangement, including a surface to be sealed off of a rotationally symmetrical machine element and a radial shaft sealing ring. The sealing ring has a sealing lip made of polymer material, which contacts the surface along a sealing edge that is... | 03/19/2002 |
| 6327946 | Method for manufacturing an improved seal for fluid applications A method for manufacturing a mechanical seal used in fluid applications, wherein the mechanical seal is comprised of a sintered (cemented) tungsten carbide ring that is turned on a lathe at a negative top rake angle instead of formed by grinding. The ceme... | 12/11/2001 |
| 6223635 | Method of forming annular grooves in a ball polishing apparatus A ball polishing method includes the steps of rotating one of two plates through use of a rotating mechanism while balls are sandwiched between the plates, pressing one of the two plates against the other plate via a guide slide mechanism for guiding one ... | 05/01/2001 |
| 6142044 | System for trimming excess material A system is provided for trimming excess vinyl film from a hoop assembly. The hoop assembly may be used to manufacture semiconductor workpieces. The system uses a pressure applying member applied to the excess film with a bearing surface sufficient to rec... | 11/07/2000 |
| 5946991 | Method for knurling a workpiece A method and apparatus for knurling a workpiece in which the knurl pattern includes grooves of at least two different configurations. The apparatus includes a knurl wheel holder that allows angular rotation of the knurl wheel about the holder longitudinal... | 09/07/1999 |
| 5916342 | Apparatus for scoring plastic tamper indicating closures A method and apparatus for scoring plastic tamper indicating closures to provide the tamper indicating band that is connected to the closure by bridges formed by scoring. The scoring is achieved by successively moving a rotating closure past a stationary ... | 06/29/1999 |
| 5705289 | Process and apparatus for peeling outer tubes from spent NaS cells A process for peeling an outer tube of a spent NaS cell, including the steps of: (1) holding opposite end portions of the spent NaS cell; (2) forming annular cut lines in the outer tube of the cell at the opposite end portions; (3) forming a straight cut ... | 01/06/1998 |
| 5617768 | Trimmer for removing scraping from tops of plastic bottles A trimming apparatus (10) for removing the dome scrap (152) from a blow, molded bottle (150) is described. The apparatus includes an advancement wheel (12) and a rotation wheel (14) mounted on opposite sides of a path (16) formed by upper guide rails (18 ... | 04/08/1997 |
| 5600879 | Process and apparatus for peeling outer tubes from spent NaS cells by cutting and applying an impact force A process for peeling an outer tube of a spent NaS cell, concluding the steps of: (1) holding opposite end portions of the spent NaS cell; (2) forming annular cut lines in the outer tube of the cell at the opposite end portions; (3) forming a straight cut... | 02/11/1997 |
| 5564319 | Apparatus for forming bridges in tamper indicating closures A tamper indicating closure comprising a base wall and a peripheral skirt having an internal thread adapted to engage the threads of a container wherein a tamper indicating band is provided on the skirt by a plurality of circumferentially spaced bridges. ... | 10/15/1996 |
| 5555782 | Waste tire slicing machine A slicing machine for cutting waste tires into pieces which can be stored in considerably compacted volumes for further use or disposal thereof. The machine includes a rotatively driven chuck plate having a plurality of perpendicularly arranged pins for s... | 09/17/1996 |
| 5257560 | Trimmer for removing scraping from tops of plastic bottles A trimmer apparatus (10) comprising dual moveable belts (64) and (90) for removing a dome scrap (12) from a hollow, blow molded plastic bottle (14), is described. The dual belts are supported on spaced apart pulley systems (20) and (22) forming a linear p... | 11/02/1993 |
| 5099727 | Mechanism and method for circumscribing oval shapes A mechanism is provided for circumscribing oval paths, wherein a pivotably mounted element is dynamically oriented so as to maintain a functional axis thereof constantly tangent to the circumscribed path. An orienting arm attached to the mounted element i... | 03/31/1992 |
| 5033346 | Sheet cutting machine, and cutting head and clamping assemblies therefor A machine having a cutting head assembly and a clamping system is provided for cutting shapes in planar workpieces. A pair of separately operated blades are convergently disposed to enable the formation of an edge bevel on the workpiece by cutting it from... | 07/23/1991 |
| 5014584 | Machine and method for cutting oval shapes A machine is provided for cutting oval shapes in planar workpieces, wherein the blade is dynamically oriented so as to maintain its cutting axis constantly tangent to the line of cutting. It utilizes a pivotably mounted cutter head, to which is attached a... | 05/14/1991 |
| 4949605 | Cutting apparatus with workpiece rotation control Apparatus for cutting a workpiece includes a rotatable blade and a rotatable workpiece holder mounted on a pivotable swing arm and rotated in a selected direction by drive elements. The swing arm pivots downward into an engagement position so that the wor... | 08/21/1990 |
