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7389806 Motorized window shade system  
An electronically-controlled roll-up window shade that can easily be installed by a homeowner or general handyman is disclosed. The motorized shade includes an internal power source, a motor, and a...
7193201 Method for measuring external light to control protection means against sunlight or illumination  
The invention concerns a method which consists in detecting and discriminating at least three states, respectively blue sky, white sky and direct sunlight. The discrimination between the three...
7152652 Load detection system for motorized lateral and vertical arm awnings  
A load detection system for lateral and vertical arm awnings generally includes a motorized roller with a fabric wound thereabout in a retracted position and extendable therefrom. Arms are provided...
7111952 System to control daylight and artificial illumination and sun glare in a space  
An illumination maintenance system for maintaining a desired illumination profile in a space throughout at least a portion of a day where the illumination sources include daylight and artificial...
6296036 Auto-shutter system for eye protection against in-band frequency agile lasers  
An automatic-shutter system functions as a counter-measure to the in-band frequency agile laser threat posed to the eyes of pilot(s)/operator(s). Ideally it is desirable to protect the operator...
6111376 Motorizing awning with automatic safety control  
An awning, in particular an awning with a supporting arm, the cloth (1) of which can be unwound from a tube or winding shaft (2) driven by an electric motor (9) and in which are provided means for...
6084231 Closed-loop, daylight-sensing, automatic window-covering system insensitive to radiant spectrum produced by gaseous-discharge lamps  
A system for automatic regulation of daylight admitted by a window in the presence of artificial illumination produced by a high-efficiency (e.g., fluorescent-type) electric lamp. A preferred...
5808430 Electrically controlled curtains  
An electrical control arrangement for a curtain assembly has a reversible electric, preferably DC, drive motor, drive devices for connecting the motor to one or more curtains for movement of the...
5663621 Autonomous, low-cost, automatic window covering system for daylighting applications  
A system for the automatic regulation of daylight admitted into a room, specifically intended for daylighting applications. A preferred embodiment, system 10, consisting of a conventional control...
5648656 System to optimize artificial lighting levels with increasing daylight level  
An artificial lighting system comprises a daylight sensor for sensing a level of daylight, artificial light source means for providing a level of artificial light, daylight control means for...
5566471 Electromotive curtain for drying clothes  
An electromotive curtain machine for drying clothes using a rain sensor, a sunshine sensor, and a wind sensor which will send existing rain, sun, or wind conditions to a central processing unit so...
5532560 Photosensitive automatic blind controller  
There is disclosed a photosensitive automatic controller for use with window coverings in particular for use with venetian blinds. The controller includes a reversible motor, a drive circuit, a...
5158334 Adjustable vehicular glare shielding device  
The present invention relates to a glare shielding device which affords significantly improved efficacy in shielding a vehicular occupant'eyes against sun rays. The device includes a glare shield...
5142133 Apparatus for the control of venetian blinds including photodetector means for detecting the angle of incidence of sun light  
The lowering and raising of slats of a venetian blind are controlled by control signals from a photodetector circuit which is mounted adjacent to the venetian blind and which acts responsive to...
5088543 Skylight shade  
A shade unit having a frame defining a skylight opening, to which is attached a motor assembly and a shade assembly. A control unit consisting of an open stop switch, a close stop switch controls...
4995442 Curtain opening device  
A device for opening and closing a closure member, typically a curtain in which a cord is associated with the closure member and has a bight portion located in the first plane and a pair of...
4979550 Window blind control apparatus  
A window blind control apparatus is set forth wherein the apparatus enables selective control in the opening and closing of an associated window blind arrangement utilizing selectively a...
4951730 Window blind system  
A window blind system for a window comprising a longitudinal casing which is arranged to be transversely fixed to a window frame above a window to be shaded, a roller blind mechanism carrying an...
4864201 Light actuated curtain puller  
An automatic electro-mechanical device for opening and closing a curtain or drapery in response to changed light striking a photoelectric cell on the device. The device comprises a miniature high...
4773733 Venetian blind having prismatic reflective slats  
A venetian blind having prismatic reflective slatted panels permits the passage of indirect rays of sunlight into a space to be illuminated while reflecting direct rays of sunlight away from the...
4727918 Blind adjuster  
Automatic control device for the slats of a venetian blind which responds to ambient radiation and which includes at least one reversible electric motor connected to rotate the slats between open...
4644990 Automatic closing system for window blinds  
Improved method and apparatus for automatically moving a set of venetian type window blinds or similar louvered window coverings or partitions between open or closed positions in response to...
4474167 Latch for a butterfly damper  
An air/smoke/fire damper including a frame and a pair of damper blades pivoted for rotation within the frame between an open and a closed position, and comprising a heat responsive latch including...
4424850 Security proof shutter  
Security proof shutter structure applicable to windows, doors, store or garage fronts, utilizing slats constructed of steel or the like. A special S-shaped spring linkage means is secured to...
4307768 Energy conserving insulative window shade  
Window shade structure for reducing heat loss or heat gain through a window or other "thermal opening" wherein the shade body is drawable over the window and is collapsible into a reduced storage...
4144802 Hurricane/tornado building protection system  
A system for the protection of a building, house, or like structure, is provided which affords protection against the forces of wind, pressure differentials, water and sound. The device features a...
3965348 Method of and apparatus for detecting light and controlling jalousies and the like  
A photosensitive surface is enclosed behind a wall formed with a vertically open slit which forms with the surface a vertical angle of 80°. This slit is open about 3° and is displaced...
3885152 Method of and apparatus for detecting light and controlling jalousies or the like  
A photosensitive surface is enclosed behind a wall formed with a vertically open slit which forms with the surface a vertical angle of 80°. This slit is open about 3° and is displaced...
3860055 SHUTTER DEVICE  
A shutter device embodying a mechanism for raising and lowering the shutter, a feeler sensitive to external thermal and light radiation, the feeler being coupled with the raising and lowering...
3675023 AUTOMATIC CONTROL OF VENETIAN BLINDS IN RESPONSE TO BOTH HEAT AND LIGHT BEING BELOW RESPECTIVE THRESHOLD VALUES  
Sensing devices respectively reacting to light intensity and to heat radiation are mounted in an exposed position such as on the top of a building. The sensing devices are oriented for direct...
3646985 VENETIAN BLIND WITH AUTOMATIC CONTROL OF ROOM BRIGHTNESS  
A venetian blind is provided with an electric motor to run the blind up and down. The motor also tips the slats one way or the other automatically to control the amount of light admitted to a room...
3591221 FIRE DAMPER LATCH  
A latch is designed for a fire damper, the blades of which are integrally formed from an imperforate sheet. With a fire damper of this type, when the integral blade sections are held in a...
3550357 SEPARATOR HAVING ADJUSTABLE LOUVERS WITH CLEANING MEANS THEREFOR  
3538975 FIRE DAMPER  
3521692 FIRE DAMPER OR THE LIKE  
3495606 DAMPER VALVE FOR VENTILATING DUCTS  
3478805 ANIMAL HOUSE CURTAIN AND METHOD OF PREPARING SAME  
3467163 FIRE DAMPER  
3451163 FIRE SHIELD DAMPER DEVICE  
3341971 Fire damper  
3327764 Damper and method of making same  
3294152 Window screens  
3294151 Automatic electric awning  
3294150 Sunblinds for greenhouses or the like  
3276942 Extruded screen  
3249148 Automatic venetian blinds  
3247894 Air conditioning system  
3177367 Solar operated louver apparatus  
3064131 Solar operated louver apparatus  
3042001 Automatic poultry curtain raiser  
Matches 1 - 50 out of 77 1 2 >