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Patent # Description
US-4,493,544 Focal-plane shutter
A focal-plane shutter for a camera comprises a pair of apertured base plates disposed parallel to each other with a predetermined spacing therebetween to form an...
US-4,493,543 Device for data recording at photographic cameras
The invention relates to a device for data recording at photographic cameras equipped with a separate film magazine. The device according to the invention is...
US-4,493,542 Photographic camera with handle grip
A photographic camera having a configuration like a thin box comprises a camera body and a handle grip. When the camera is used, the camera body is rotated...
US-4,493,541 Apparatus for photographically producing characters or other representations
A light box is for supporting a stack of essentially transparent sheets including photo material which is insensitive to daylight and sensitive to shortwave...
US-4,493,540 Transport apparatus for microfiche cards
A microfiche card storage and retrieval system comprising a carousel for storing microfiche cards, card transport means for inserting and retracting microfiche...
US-4,493,539 Method and apparatus for objective determination of visual contrast sensitivity functions
A method and apparatus for objectively determining the visual contrast sensitivity function of a human subject involves subjecting the vision of the human...
US-4,493,538 Lateral view extender device
A lateral view extender device for Homonymous Hemianopsia is disclosed. The device is particularly useful with eyeglasses having a pair of lenses and a nose...
US-4,493,537 Objective lens system for endoscopes
An objective lens system for endoscopes comprising a first negative meniscus lens component, a second positive meniscus lens component, a third biconvex lens...
US-4,493,536 Inverted telephoto type lens system
An improved 5-component, 5-lens element inverted telephoto objective lens system is provided comprising from object to image side of a negative meniscus single...
US-4,493,535 Hybrid transmissive focalizing optical system
There is disclosed an optical system consisting in a floating assembly of a glass plate and of a focalizing part or lens out of plastic material, for instance a...
US-4,493,534 Focus adjusting device for camera having varifocal optical system
A focus adjusting device for a camera having a varifocal optical system includes a pivotal member having a focusing guiding slot. The pivotal member is movable...
US-4,493,533 Immersion oil containing aliphatic thio compounds
Immersion oils containing aliphatic thio compounds are described. The oils have optical properties and are useful in immersion optics such as fluorescence...
US-4,493,532 Pleochroic azo dyes, a liquid crystal composition containing the azo dyes and a display device using the liquid...
Pleochroic azo dyes represented by the formula (I): ##STR1## wherein X represents group --OCOR.sup.1 or --COOR.sup.1 (wherein R.sup.1 represents an alkyl...
US-4,493,531 Field sensitive optical displays, generation of fields therefor and scanning thereof
Disclosed are field sensitive optical displays, and arrangements and methods for inducing fields in the displays and for scanning the displays. In the disclosed...
US-4,493,530 Single polarization optical fibers
A single polarization optical fiber has an elliptical jacket composed of SiO.sub.2 +F.sub.2 O+P.sub.2 O.sub.5, whereby increase in transmission loss at a long...
US-4,493,529 Electromagnetic energy signal-carrying connector having secure strain-relief mechanism
An interchangeable multi-channel hermaphroditic fiber optic connector (10) for cables (12), having different numbers of optical fibers (18) and contacts (22)...
US-4,493,528 Fiber optic directional coupler
Apparatus and method of manufacture for coupling optical power between two strands of fiber optic material in a given direction of propagation. The coupler...
US-4,493,527 Socket contact for electrical connectors
A socket contact for electrical connectors consisting of a contact liner sleeve (16) with a rear sleeve (14) and inner and outer front sleeves (12, 10) assembled...
US-4,493,526 Jack
In a jack in which a movable contact piece mounted therein is displaced by a plug inserted thereinto and a coiled spring for supplementing the resiliency of the...
US-4,493,525 Electrical plug connector and receptacle therefor
In an electrical connector of the plug type and a corresponding receptacle therefor, said plug connector comprises a dielectric housing member having ...
US-4,493,524 Factory data collection terminal conduit enclosure
In a computer factory data collection terminal an electrical conduit enclosure for permitting wiring to be brought up through the conduit to the factory data...
US-4,493,523 Adaptive strain relief for wiring devices
A wiring device has an entry hole through which an electric cord may be passed. The device has a serrated corner positioned opposite the entry hole and a...
US-4,493,522 Sealed cable connector
An environmentally sealed cable connector for terminating wire jacketed cable. The connector includes a body for receiving the cable and a gland nut for securing...
US-4,493,521 Connector holder assembly
A connector holder assembly for use with a wiring harness wiring has a frame adapted to hold a connector contained with the frame by a snap-on cover. A pair of...
US-4,493,520 Electrical push-pull connector
The present invention concerns a connecting device comprising a connector having an inner sleeve and an outer cylindrical sleeve sliding axially in relation to...
US-4,493,519 Adapter plug for current supply rail systems
Adapter for connection to electric current carrying rails having movable contacts for the electric connection and mechanical locking means including a button...
US-4,493,518 Extractor means multi-plane interconnection system
An extractor for removing connectors from high density locations is formed by a pair of hermaphroditic members each pivotally attached to the connector adjacent...
US-4,493,517 Electrical socket connector
An electrical socket connector is adapted to receive a multiple-pin shrouded plug and has a body containing at least live and neutral sockets and formed with a...
US-4,493,516 Electrical ducting system
A ducting system comprising ducts of mainly U-shaped cross-section with bare hollow conductors fitted at the inner surfaces thereof, which conductors are...
US-4,493,515 Multiple electrical outlet strip construction
A cased electrical component, such as a multiple electrical outlet strip, has a greatly simplified construction. A single structure provides for passage of an...
US-4,493,514 Mechanism for proportionately loading dual thrust bearing assemblies against axial thrust loads
A mechanism for distributing axial thrust loads acting on a rotating shaft, ncluding dual thrust bearing assemblies concentrically mounted on the rotating shaft...
US-4,493,513 Bearing cage for retaining rolling elements
At least a part of the inner face 41 of each pocket of a cage 4 for retaining and guiding rolling elements is formed to have a curvature of similar configuration...
US-4,493,512 Spherical and cylindrical bearings and method of manufacturing
A bearing assembly having bearing surfaces pre-loaded towards each other, the bearing surfaces being originally made in slightly non-conforming geometry and...
US-4,493,511 Combined BC pressure-maintaining valve and quick service bulb exhaust valve
This invention relates to a valve assembly for a railway braking system, including a brake cylinder pressure-maintaining valve which, during brake application,...
US-4,493,510 Brake pressure control valve for tractor-trailer vehicles
This invention relates to a brake pressure control valve and, more particularly, to a tractor-trailer control valve which includes a differential pressure...
US-4,493,509 Two-fluid nonflammable hydraulic system
A relatively expensive, relatively heavy, and relatively nonflammable hydraulic fluid (chlorotrifluorethylene) is used in an aircraft ground wheel brake system...
US-4,493,508 Dual-circuit pressure control valve
Dual-circuit pressure control valves are known in which the two control pistons are acted upon by a common preloading force through the intermediary of a preload...
US-4,493,507 Tilting type sunroof
A tilting type sunroof comprises a roof panel supported with a lift link which is pivotally connected with a shoe. An arm of the lift link is engaged with an...
US-4,493,506 Vehicle rocker panel structure
A support structure for a vehicle includes a first support member positioned below and secured to the underside of the vehicle rocker panel. In one embodiment, a...
US-4,493,505 Rear seat of an automobile
A rear seat of an automobile, capable of selectively securing thereto with either one of a separate type seat back divided into two sections in the widthwise...
US-4,493,504 Carrier for transporting paintings and other substantially planar artwork
A carrier for transporting paintings and other substantially planar artwork comprises a pair of generally parallel elongated support members mounted upon a...
US-4,493,503 Golf ball retriever
The golf ball retriever includes an inverted, generally U-shaped frame having a pair of opposed legs connected by an intermediate reach. A pair of transversely...
US-4,493,502 Car body guard
A car body guard comprising a flexible rubber strap rolled up in a housing which is mounted in one of the wheel wells of the car. The strap may be unwound from...
US-4,493,501 Security lock for sliding doors or windows
The disclosure relates to a secure locking mechanism for a sliding door or window. It comprises a toggling pair of bars, one of which is attached to the door...
US-4,493,500 Dead bolt and night chain combination
The sliding deadbolt of a security door lock internally mounts a latching device engageable with the coupling element on the end of a flexible guard element...
US-4,493,499 Door latch
Apparatus for securing a swinging end of a hinged door in a closed position is disclosed. A slidable latch assembly including spaced rollers for engaging angled...
US-4,493,498 Knotter with an improved Geneva mechanism
A knotter comprising a billhook operable to form a knot in flexible material such as twine and being rotatable through first and second cycles during the knot...
US-4,493,497 Pipe connection assembly
A pipe connection assembly for connecting pipes transmitting a fluid as provided. A feature of this invention is the fact that it prevents any fluid escaping...
US-4,493,496 Continuous form multiple ply assembly
This multiple ply assembly yields individual invoice/itinerary sheets and a traveler's ticket-holding folder with the invoice/itinerary information printed...
US-4,493,495 Binding unit
A device for binding the marginal edge of materials is provided which takes the form of a continuous section of resilient material. The section of the device...
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