Fill door having angled movement
OwnerKenneth D. Clarkinventor
Life of this patent
Estimating the term…
Abstract
A fill door for use on the angled surfaces of furnace shells and chemical containers. The door is pivotally coupled to a door frame integral with the angled surface and includes a rim that mates with a female channel in the door. A U-shaped latch is pivotally connected to the frame and includes a threaded spindle operatively connected to crack. The surface of the door includes a female sleeve having a bore for accommodating the end of the spindle when the latch is over the door and the spindle is tightened into its closed and locked position. The door further includes a cantilevered arm having an angled bore which allows it to swivel around a substantially vertical cylindrical post connected to frame. The arm and door swing in a substantially horizontal plane around the axis of the post.
Claims7
A fill door for attachment to industrial furnaces and chemical containment vessels, said comprising:
- a door (16) having a closed position (12) and a fully open position (14);
- a door frame (18), said frame positioned on an angled surface (20) of a vessel shell (22);
- a substantially vertical cylindrical pivot post (82) proximate said door, and having an upper half (86) pivotally connected to a lower half (88);
- and
- an arm (76) affixed to said door and pivotally connected to said post (82);
- characterized in that said door moves from its closed position to its fully open position in a horizontal plane.
A fill door for attachment to industrial furnaces and chemical containment vessels, said door comprising:
- a door (16) having a closed position (12) and a fully open position (14);
- a door frame (18), said frame positioned on an angled surface (20) of a vessel shell (22);
- a substantially vertical cylindrical pivot post (82) proximate said door;
- and
- an arm (76) affixed to said door and pivotally connected to said post (82), wherein said arm (76) has a tongue portion (97) having an aperture (98) into which a steel housing and ball bearing linkage (100) is inserted and secured, and wherein said linkage mates with a rod (102) integral with the base portion (77) of said sleeve (68), and wherein said arm (76) is interposed between said sleeve (68) and said door (16) such that said tongue portion (97) of arm 76 has a small amount of play underneath sleeve (68), and said ball bearing linkage allows some swiveling and rotational movement in the door;
- characterized in that said door moves from its closed position to its fully open position in a horizontal plane.
A fill door for attachment to industrial furnaces and chemical containment vessels, said door comprising:
- a door (16) having a closed position (12) and a fully open position (14);
- a door frame (18), said frame positioned on an angled surface (20) of a vessel shell (22);
- a substantially vertical cylindrical pivot post (82) proximate said door;
- and
- an arm (76) affixed to said door and pivotally connected to said post (82);
- a U-shaped bracket latch (30) having a transverse member (32) and two arms (34, 36), each arm pivotally connected to said frame (18) frame;
- a rotatable threaded spindle (56) threadably inserted through a threaded sleeve (58), which is connected to said transverse member (32);
- and
- a female sleeve (68) bolted to the outer surface (70) of door 16 with a plurality of bolts (72) and having a shallow bore (74) for accommodating the end of spindle (56) when the latter is rotated down to secure said latch (30) when said door (16) is in the closed position (12);
- characterized in that said door moves from its closed position to its fully open position in a horizontal plane.
Dependencies are inferred from the claim text.