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Class Information
Number: 49/40
Name: Movable or removable closures > Convex or concave closure and opening
Description: Device wherein the closure surface and the means defining an opening for the closure are arched or bulged.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8627601 Rotating radiation shielded entrance assembly Jan. 14, 2014
8519646 Container lid Aug. 27, 2013
8398026 Multi-function rotary access door Mar. 19, 2013
7784150 Railroad car door pivot assembly Aug. 31, 2010
7575220 Curved slit valve door Aug. 18, 2009
7497414 Curved slit valve door with flexible coupling Mar. 3, 2009
7353638 Sound resistant enclosure Apr. 8, 2008
7296844 Automotive door with reverse hinge Nov. 20, 2007
7194841 Dressing room and curtain suspension device Mar. 27, 2007
7104008 Door system with a pair of door panels connected by a swivel panel that swings back and forth for selectively opening and closing gateways in a compartment Sep. 12, 2006
7021002 Sliding revolving door Apr. 4, 2006
6976335 Bi-directionally-curved vehicle window pane and vehicle door structure incorporating the same Dec. 20, 2005
6953301 Lid assembly for facility access opening Oct. 11, 2005
6845722 Auto rack car with end closure Jan. 25, 2005
6691953 Ejectable door for aircraft Feb. 17, 2004
6427286 Adjusting a sliding door Aug. 6, 2002
6412220 Upright rotatable arcuate safety gate for a mezzanine loading bay Jul. 2, 2002
6341447 Half circle window shutter/blind Jan. 29, 2002
6260309 Split-sphere observatory dome with a rotating oculus window Jul. 17, 2001
6247272 Curved door assembly for workstation Jun. 19, 2001
6227635 Storage cabinet with handle operated door May. 8, 2001
6000521 Slidable door for a bill inlet Dec. 14, 1999
5987817 Revolving door Nov. 23, 1999
5906411 Combine harvester cab layout for visibility, serviceability and space May. 25, 1999
5845980 Overhead storage cabinet Dec. 8, 1998
5678787 Door assembly with shear layer control aperture Oct. 21, 1997
5673874 External sliding aircraft door Oct. 7, 1997
5640981 Parts washer Jun. 24, 1997
5622414 Refrigerator display cabinet with thermally insulated pivotable all glass front window panel Apr. 22, 1997
5605014 Door apparatus for rest room Feb. 25, 1997
5598665 Sliding sash for optional closing, in particular for an open side of balconies, sun porches and the like Feb. 4, 1997
5539184 Electric oven Jul. 23, 1996
5526615 Automatic transaction machine storing apparatus Jun. 18, 1996
5520358 Door assembly with shear layer control aperture May. 28, 1996
5507121 Motorcycle garage Apr. 16, 1996
5448860 Prefabricated observatory dome structure Sep. 12, 1995
5431251 Elevator car Jul. 11, 1995
5407029 Elevator landing Apr. 18, 1995
5378036 Sliding automobile door Jan. 3, 1995
5377783 Elevator door drive Jan. 3, 1995
5339852 Permanent portable weatherproof blind Aug. 23, 1994
5259576 External sliding aircraft door Nov. 9, 1993
5241772 Cylindrical hunting blind Sep. 7, 1993
5224297 Sliding door and latching/locking assembly Jul. 6, 1993
5172643 Apparatus for handling strips of paper Dec. 22, 1992
5150863 Lavatory unit for a passenger airplane Sep. 29, 1992
5140912 Rail car end assembly Aug. 25, 1992
5131797 Swipe transfer assembly Jul. 21, 1992
4991347 Opening/closing mechanism for the use in circular-arc shaped sliding doors Feb. 12, 1991
4951727 Low storage-volume closure device for curved surface Aug. 28, 1990

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