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Patent No. 5265827

Paddle Wheel Plane

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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Assignee: Richard Wolf GmbH (DE)


Location: Not specified.
No. of patents: 37

NumberTitleIssue Date
4866526Video endoscope with light intensity regulation
A video endoscope having a semiconductor image converter which is incorporated in the endoscope and which receives the image of the object illuminated periodically by an illumination device with a sequence of partial colors, for example by using a filter ...
09/12/1989
4858002Wide-angle objective for endoscopes
A wide-angle objective for endoscopes, in particular for video endoscopes comprises fibre image conductors or CCD image transducers, in which known instruments are taken as a basis, in which a distally positioned objective comprises a meniscus lens with i...
08/15/1989
4841363Endoscopic video system
An endoscopic television system includes: a character generator which is controlled by a keyboard to store characters selected by actuation of the keyboard in a character store; an image control trigger by synchronization pulses derived from an endoscopic...
06/20/1989
4821245Electromagnetic transducer
An electromagnetic transducer for use in generating transient acoustic pulses in particular for medical purposes such as the destruction of kidney stones. The transducer comprises at least one pair of conductors, of which one is held against movement by a...
04/11/1989
4819633Coagulation forceps
The coagulation forceps of the type in which a rod for the opening and closing of forceps jaws by reciprocal axial movement thereof extends axially through an externally insulated shaft, and is actuated by a handle comprising a pair of branches which are ...
04/11/1989
4815833Objective for endoscopes and process for its production
An objective for endoscopes with a lateral objective lens comprises an elongated prism having a convex proximal end surface and a distal end on which are joined by cementing after alignment on an optical axis, a diaphragm, a negative lens and optionally a...
03/28/1989
4807595Salpingoscope
For the examination of the fallopian tube, a salpingoscope has a first endoscope telescopically receiving a second endoscope which are displaceable relative one another. The optics of the second endoscope and the distal end of the outer guide shaft of the...
02/28/1989
4807291Circuit for a flash stroboscope for examining vocal chord functions
A circuit for a flash stroboscope for examining vocal chord functions has a number of band-pass filters connected in parallel which have different cut-off frequencies. The acoustic signal generated by the vocal chords is fed to the inputs of these filters...
02/21/1989
4782386Video endoscope with a light source operable in a continuous or stroboscopic mode
A video endoscope has a strobe lamp operable in a mode wherein the strobing is synchronized to a selected tone or a periodic vibration in a patient, such as from the vocal cords, and is alternatively operable in a mode wherein the strobing is so rapid so ...
11/01/1988
4742833Device for treating male persons suffering from urine incontinence
A device for treating male persons suffering from urine incontinence consists of a carrier having an aperture for surrounding the penis of the patient, the carrier having at least two electrodes, which are mounted in the aperture for engaging the opposite...
05/10/1988
4737142Instrument for examination and treatment of bodily passages
An instrument for detection, examination and treatment of constrictions in bodily passages or vessels comprises a continuous-wall shaft in the form of a catheter having a small cross-section of up to 4 mm and having cross-sectionally distributed and longi...
04/12/1988
4723843Endoscope optical system
An endoscope optical system comprising rod lenses between the objective and ocular lenses has the feature that gradient rod lenses, whose lengths each end centrally between two intermediate images, are installed with small spacings between the ocular and ...
02/09/1988
4721107Instrument for ultrasonic lithotripsy
An instrument for ultrasonics lithotripsy comprises a probe which is applied to the stone which is to be disintegrated, which may be placed in oscillation by means of a piezo-electric sound transducer which is assembled from ceramic discs. The transducer ...
01/26/1988
4686984Catheter for widening a puncture channel
For widening puncture channels of the kidney, use is made of catheters increasing by steps in diameter, which are inserted consecutively into the kidney through a puncture channel over a guiding rod. One of the catheters is equipped, beside its central pa...
08/18/1987
4686965Instrument for endoscopic operations
An instrument for endoscopic operations has trocar sleeve and a trocar sleeve insert which can be introduced and axially displaced in the trocar sleeve. In the working position, the trocar sleeve insert protrudes beyond the trocar sleeve in the distal reg...
08/18/1987
4688087Light projector having a controllable intensity of illumination
The light projector provided with a system for setting the intensity of illumination for a cavity which is being filmed by means of a video camera, and from which the picture is shown on a monitor screen. The video signal from the camera is supplied as an...
08/18/1987
4683885Method for tying sewing threads
The applicator for utilization in combination with an endoscope tube comprises a coil connected to a longitudinal passage through a shaft and comprising hollow turns connected to the shaft passage for reception of a sewing thread, whose proximal extremity...
08/04/1987
4682585Optical system for an endoscope
The shaft of an endoscope for passing through a trocar sleeve or a guiding shaft is tapered towards the distal extremity, and this taper is followed proximally by at least one shallowly concave peripheral constriction. The distal objective of the endoscop...
07/28/1987
4653476Instrument insert for a uretero-renoscope
An instrument insert for a uretero-renoscope comprises a hollow elongate shaft proximally connectible through an outer shaft of the uretero-renoscope and having an optical system extending through it. A steerable deflector device for a flexible auxiliary ...
03/31/1987
4643190Medical forceps
Medical forceps for example for excision of tissue in arthroscopic applications, comprises a jaw element rigidly connected to a shaft and a movable jaw element which is operated via a rotary rod extending through the shaft and a first bevel gear secured t...
02/17/1987
4641652Applicator for tying sewing threads
The applicator for utilization in combination with an endoscope tube comprises a coil connected to a longitudinal passage through a shaft and comprising hollow turns connected to the shaft passage for reception of a sewing thread, whose proximal extremity...
02/10/1987
4640124Tecnoscopes
A technoscope for internal inspection of plant such as special aircraft power units equipped with non-circular, preferably cornered (e.g. square) wall ports comprises a rigid first metal guide shaft of non-circular cross-section insertible into one of the...
02/03/1987
4639904Sonic transmitters
A sound transmitter for generation of transient acoustic pulses, comprising a spatially curved focussing emitter surface which is represented by the area of a single active or passive emitter or by the areas of several emitters matched in respect of their...
01/27/1987
4630598Uretero-renoscope
The ureteral renoscope comprises a shaft of oval or egg-shaped cross-section which is divided by an inner shaft into two axial passages of which one is traversed by an optical system and the other is traversed by an auxiliary instrument. Cross-sectional s...
12/23/1986
4615332Flexible multichannel endoscope having axial shaft portions of different flexibility
A flexible or partially flexible endoscope comprising several passages and image guides passing through the shaft has the features that its distal omnilaterally steerable shaft is proximally constructed semirigidly or rigidly, is secured in a coupling ele...
10/07/1986
4614182Applicator for uterine pessaries
The applicator for inserting a pessary into the uterus, which pessary comprises a chain combined with a distal coil screwable into the base of the uterus. The applicator has an inner shaft, which received the chain in its leading end, installed in an oute...
09/30/1986
4613232Measuring device for testing optical systems of an endoscope
A portable measuring device for testing optical systems of an endoscope consisting of a base plate, a rail with a longitudinally extending V groove for receiving a portion of the endoscope being mounted to extend parallel to the plate on a carriage movabl...
09/23/1986
4606330Device for disintegrating stones in bodily cavities or ducts
A device for shattering stones in bodily cavities or ducts; incorporating an endoscope. A passage for auxiliary instruments and for flushing of a bodily cavity extends through the shaft of the endoscope. A casing section at one end of the endoscope compri...
08/19/1986
4593682Endoscope
The endoscope for the observation and examination of bodily cavities is equipped with uninterrupted image and light ducts and divided into a rigid distal longitudinal member equipped with a handle, and a flexible longitudinal member joined thereto and com...
06/10/1986
4585399Hose pump
The hose pump in particular for drawing flushing liquids out of bodily cavities, is so constructed that the extremities of the hose which is to be inserted into the pump housing have different coupling or plug elements for suction and pressure hoses which...
04/29/1986
4569131Tool having a handle with an interchangeable insert portion
A tool having an insert portion mounted on a handle portion which handle portion will actuate a pincher-like tool arrangement on the free end of the insert portion characterized by a locking arrangement for holding the pincher-like tool in a closed positi...
02/11/1986
4557554Light projectors
This invention relates to a light projector comprising a shutter in front of a connector socket arranged to receive the plug of an optical fiber cable insertable thereinto, and the proximal end of the plug adjacent the projector is reduced in diameter and...
12/10/1985
4538594Rectoscope
The rectoscope comprises a short, wide tube having a proximal coupling housing or a coupling housing which may be coupled at its distal side to a tube of optional length and width. The coupling housing may be coupled at its proximal side to a mandrel or a...
09/03/1985
4512343Medical coagulation device
An insulated electrically conducted shaft for medical coagulation instruments, and particularly for unipolar coagulation instruments is constructed with an insulating jacket consisting of separate conduit pieces formed of insulating material which are sli...
04/23/1985
4503843Hysteroscopes
The present invention relates to a hysteroscope which is insertable into the uterus via an entrance adaptor, and consists in a guiding element intended for firm and rigid connection to the entrance adaptor and may be pushed together and pulled apart teles...
03/12/1985
4250873Endoscopes
This invention relates to endoscopes comprising for inserting an implant liner into an opening through a stricture in the urethra. According to the invention, the endoscope comprises the following features: (a) an outer barrel, a tensioning tube displaceable axiall...
02/17/1981
4141362Laser endoscope
Endoscope equipped both with an observation optic and a Laser beam, including a deflectable reflector enabling the laser beam to scan the body tissue and a focus enabling the laser beam focal plane to be varied depth-wise in the body tissue....
02/27/1979
 
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