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| Patent # | Description |
|---|---|
| US-4,497,597 |
Cribbing A crib member for forming underground cribbing is provided in the form of a concrete annulus formed within at least one annular metal retaining member so as to... |
| US-4,497,596 |
Method of minimizing fines migration in a subterranean formation A method of stabilizing fines within a permeable subterranean formation comprising contacting the fines with an effective amount of an organic polycationic... |
| US-4,497,595 |
Method of bonding roofbolt rods to boltholes A procedure of bonding roofbolt rods to boltholes whereby the roofbolt rod is pushed under rotating movements into a bolthole filled with an adhesive mass... |
| US-4,497,594 |
Offshore structure and method of sinking same An offshore structure and a method of sinking it to the sea bed. In accordance with one aspect of this invention, the structure is sunk asymmetrically by first... |
| US-4,497,593 |
Floating structures A fender system for a floating structure such as an off-shore platform wherein a column supporting the platform has a plurality of vertically spaced rail members... |
| US-4,497,592 |
Self-levelling underwater structure A self-levelling underwater structure receivable on an upright support implanted in the floor of a body of water and including a hollow unit fitting over the... |
| US-4,497,591 |
Advancing mechanism and system utilizing same for raising and lowering a
work platform A rack (16) extends along a support column (12) for a work platform (10) which is guided for up and down movement along the support column (12). A pair of... |
| US-4,497,590 |
Tunnel lining A prefabricated tunnel lining is disclosed comprised of a plurality of interconnected longitudinally abutting rings, each ring being comprised of a plurality of... |
| US-4,497,589 |
Electronic typewriter with means for positioning the typed member The keyboard of an electronic typewriter with a daisywheel print unit on a carriage includes a CENTER key and REPEAT key. With the print unit positioned where an... |
| US-4,497,588 |
Printing or typing apparatus with a rotating platen as well as guide
devices for the paper Printing apparatus with a roller platen and a plastic strip for holding paper against the roller platen even if insufficient paper is fed through to reach the... |
| US-4,497,587 |
Three-pad journal bearing An oil lubricated, double tilting, three pad journal bearing includes three pads asymmetrically located with respect to each other and with respect to the... |
| US-4,497,586 |
Celsius electronic thermometer circuit An electronic Celsius thermometer circuit suitable for fabrication in integrated circuit form has an output directly related to the temperature scale. The zero... |
| US-4,497,585 |
Electronic thermometer The device is primarily adapted for use in hospitals and comprises a housing having a front window through which a digital display of sensed temperature is... |
| US-4,497,584 |
Wrist watch case with vulcanized gasket A case body is fixed to a glass by means of an interposed ring of a vulcanizable elastomer, this ring being bonded by vulcanization either directly to the glass... |
| US-4,497,583 |
Fluid-tight watch case with U-shaped bezel A bezel (6) is composed of two parts (12 and 13) which may be formed by machining and are thereafter joined to one another by welding, soldering, brazing, or... |
| US-4,497,582 |
Planetarium alarm clock A hemispherical dome of opaque thin material is pierced with small openings in patterns conforming to the appearance of constellations in the sky. Mounted on a... |
| US-4,497,581 |
Paint shaker A paint shaker for agitating and mixing paint and the like, and/or flowable materials in a container comprises a bucket having an open upper end for receiving... |
| US-4,497,580 |
Two-motor, battery-operated mixer-pourer Disclosed is a battery-operated utensil for mixing and pouring drinks and the like. It uses a separate motor to drive a shaft carrying mixer blades, and a... |
| US-4,497,579 |
Mixing head for reactive materials A mixing head for two reactive components has a mixing chamber provided with a control plunger enabling recirculation and opening at right angles into a quieting... |
| US-4,497,578 |
Machine for mixing and injecting water and grout into a roof bolt hole An apparatus in which grout is extruded from the same chamber in which mixed. Provision is made to clean the system after it has undergone one cycle of mixing... |
| US-4,497,577 |
Steam wetness measuring apparatus A steam wetness measuring apparatus comprises a light source, a part defining a measuring space when the apparatus is inserted into a wet steam flow, an optical... |
| US-4,497,576 |
Article analyzer apparatus by silhouette projection Particle analyzer apparatus using the silhouette projecting method, comprising a fixed laser, a reflecting fixed cylinder of axis orthogonal to the direction of... |
| US-4,497,575 |
Optical fiber test instrument calibrator An optical time domain reflectometer including a light source and a light detector is calibrated using an optical directional coupler having a first port... |
| US-4,497,574 |
Slide supporting assembly for color-slide duplicator In a color-slide duplicator having a housing containing a light source which illuminates an opening in a housing wall, and a support for a camera above the... |
| US-4,497,573 |
Variable magnification optical apparatus A variable magnification optical apparatus in which an image of an original can be formed on a photosensitive surface at selectively different magnifications.... |
| US-4,497,572 |
Automatic x-ray microfilm reader An x-ray microfilm reader includes a microcomputer control system for controlling film loading, unloading and searching for a particular frame, as well as... |
| US-4,497,571 |
Photographic enlargements A method of and apparatus for producing a second photographic negative film segment having low grain from an original high grain negative in which an enlarger... |
| US-4,497,570 |
Printing machine employing an operator replaceable interposition web and
photoconductive member A printing machine having an operator removable housing comprising a photoconductive member with a web entrained about a portion thereof. A latent image is... |
| US-4,497,569 |
Copy processing system for a reproduction machine A xerographic type reproduction machine or copier having means to monitor movement of the copy sheet and control processing thereof as the copy sheet moves along... |
| US-4,497,568 |
Image formation apparatus In image formation control apparatus having a process unit for forming an image on a recording medium and mechanisms for assisting in the image formation, there... |
| US-4,497,567 |
Toner transferring method and apparatus Electrostatographic apparatus and method for transferring charged toner present in an image configuration on an insulating layer bearing an electrostatic latent... |
| US-4,497,566 |
Correction of image defects in photoconductive film Image defects in liquid-developed photoconductive film, which before use has been stored in roll form at elevated temperature, are corrected by an on-line... |
| US-4,497,565 |
Exposure device for locally discharging a photoconductive imaging element An exposure device for homogeneously exposing to light and thus discharging regions of a photoconductive imaging element located outside the regions thereof on... |
| US-4,497,564 |
Exposure mode setting device in an exposure control apparatus of a camera An exposure control apparatus of a camera comprises exposure control device adjusted to control the quantity of light applied onto a photosensitive film, a... |
| US-4,497,563 |
Programmed automatic exposure control An automatic exposure control method and device has photometry means for detecting the brightness of a subject and providing an output signal in response... |
| US-4,497,562 |
Exposure control device for flash photography An exposure control device for flash photography using a first program signal circuit 5 for generating signals representative of a shutter speed and a diaphragm... |
| US-4,497,561 |
Focus detection apparatus A focus detection apparatus has at the rear side of an objective lens an imaging means which re-projects a first image of an object formed on the imaging plane... |
| US-4,497,560 |
Control circuit for active type range finder An active type range finder has a light-emitting element which is pulsatively driven to project light pulses on an object to be photographed. A photodetector... |
| US-4,497,559 |
Disc film developer A film disc developing machine, for developing plastic film discs coated on one side with a photographic emulsion enclosed in a housing and having a hub portion... |
| US-4,497,558 |
Diffusion-transfer processor for photomechanical reproductions An improved diffusion-transfer processor for photomechanical reproduction of artwork and like mediums of the type using negative and receiver materials, wherein... |
| US-4,497,557 |
Electromagnetic shutter mechanism A compact shutter mechanism is disclosed for controlling the unblocking and blocking of a light admitting opening through which light passes along a given path.... |
| US-4,497,556 |
Photographic still camera A photographic still camera uses a film system 10 that includes a paper backed film strip wound in a supply coil 20 with the leading end of the paper backing 12... |
| US-4,497,555 |
Motor-driven film winding mechanism A motor-driven film winding mechanism for cameras has a driving force transmission including a clutch releasably connecting a sprocket drum to the driving force... |
| US-4,497,554 |
Camera focusing means In a camera of the flat bed type having a base, the camera being focused by looking at ground glass back viewing screen supported on a frame which is movable for... |
| US-4,497,553 |
Shutter mechanism Opening and closing blades of a shutter are actuated substantially simultaneously with flash firing means igniting a chemical flash lamp. However, initial... |
| US-4,497,552 |
Data recording system for cameras An apparatus and method for placing information on film takes advantage of the chemical memory of the film to use low cost displays and interface circuitry... |
| US-4,497,551 |
Method and system of aerial surveying A surveying system utilizes remote-controlled flashbulbs of flashlamps which are positioned to identify objects on terrain which is overflown with an aerial... |
| US-4,497,550 |
Device for preventing the observing objective lens window of an
endoscope from collecting moisture A device for preventing the observing objective lens window of an endoscope from collecting moisture by directing a small flow of air over the front surface of... |
| US-4,497,549 |
Collapsible lens shade A collapsible lens shade comprises a foldable bellows connected between front and second plate-like members. A track member is pivotally connected to one of the... |
| US-4,497,548 |
Variable-power riflescope with range-compensating reticle and a field
stop diaphram centered off the optical axis This invention relates to a variable-power riflescope equipped with a novel range-compensating reticle system characterized by separating the ... |
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