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  2. Pella (company) - Wikipedia

    en.wikipedia.org/wiki/Pella_(company)

    The Pella Corporation is a privately held window and door manufacturing company headquartered in Pella, Iowa, and with manufacturing and sales operations in a number of locations in the United States. The company was founded in 1925 when Peter Kuyper and his wife Lucille invested $5,000 to buy the Rolscreen Company, a small business that had ...

  3. Sliding glass door - Wikipedia

    en.wikipedia.org/wiki/Sliding_glass_door

    In architecture and construction, a sliding glass door (also patio door or doorwall[1][2]) is a type of sliding door made predominantly from glass, that is situated in an external wall to provide egress and light. The doors can give access to a backyard or patio while providing a pleasant view, [3][4] and when not fully covered can be a source ...

  4. Automatic door - Wikipedia

    en.wikipedia.org/wiki/Automatic_door

    The automatic door used a mat actuator. In 1960, they co-founded Horton Automatics Inc and placed the first commercial automatic sliding door on the market. [5] With the invention of the Gunn diode, microwave motion detectors became common in automatic doors in the 1970s. [6] [7] In 1980, the first automatic door using an infrared sensor was ...

  5. Sliding door - Wikipedia

    en.wikipedia.org/wiki/Sliding_door

    A sliding door is a type of door which opens horizontally by sliding, usually parallel to (and sometimes within) a wall. Sliding doors can be mounted either on top of a track below or be suspended from a track above. Some types slide into a space in the parallel wall in the direction of travel, rather than the door sliding along the outside of ...

  6. Sliding door operator - Wikipedia

    en.wikipedia.org/wiki/Sliding_door_operator

    The operator is placed in the space above the sliding door. An electric motor, geared down to get a lower speed and a higher torque, drives a pulley at one end of a belt. The door is clamped to the belt. To open the door, the motor turns the pulley, which in turn turns the belt, which in turn drags the door. To close the door, the reverse occurs.

  7. Matthew Perry's Hollywood Hills Home Gets $500K Price Cut ...

    www.aol.com/matthew-perrys-hollywood-hills-home...

    Meanwhile, the primary bedroom has sliding glass doors connected to the pool area along with a walk-in closet. Christopher Amitrano. Matthew Perry's Hollywood Hills house.

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