Housing having cast pressure relief means

Patent metadata

Field	Value
Publication number	US-2021143617-A1
Application number	US-201816617138-A
Country	US
Kind code	A1
Filing date	May 18, 2018
Priority date	Jun 1, 2017
Publication date	May 13, 2021
Grant date	—

Abstract

A structural support that can be used as a truss girder bridge crane, or the like. The support includes one or more rows 13 of segments 15 , that are arranged in side by side relation along the length of the support. Each row 13 has extending there through at least one tensioning element 14 which is anchored at opposite ends of the row and is pretensioned with respect to the row in order to hold the segments of the row together. A support preferably includes one row 13 of segments 15 in a lower chord 11 of the support and another row 13 of segments in an upper chord of the support. Vertical framework is mounted between the chords with ends secured adjacent the segments 15 by the tensioning element. The individual segments and the tensioning elements may be directed to a construction site at the location of use and assembled into rows and the appropriate structural construction.

First claim

1 - 14 . (canceled)

15 . A structural support ( 10 ) comprising:
one row ( 13 ) of at least two successively arranged segments ( 15 ); said segments ( 15 ) of the one row ( 13 ) being braced with respect to each other by means of a tensioning element ( 14 ) extending inside the support ( 10 ); and said tensioning element ( 14 ) being anchored to opposite ends ( 25 a,b ) of the row ( 13 ) of segments ( 15 ) in order to brace the segments ( 15 ) of the one row ( 13 ) with respect to each other.

16 . The structural support ( 10 ) of claim 15 in which two adjacent segments ( 15 ) of the one row ( 13 ) are braced together without an integrally bonded connection therebetween for securing the adjacent segments ( 15 ) to each other.

17 . The structural support ( 10 ) of claim 15 in which two adjacently arranged segments ( 15 ) of the one row ( 13 ) are braced together without a weld or screw connection therebetween for securing the adjacent segments ( 15 ) to each other.

18 . The structural support ( 10 ) of claim 15 in which said tensioning element ( 14 ) extends through the segments ( 15 ) of the one row ( 13 ).

19 . The structural support ( 10 ) of claim 15 in which said one row ( 13 ) of segments ( 15 ) extends from one end ( 21 a ) of the support ( 10 ) to an opposite end ( 21 b ) of the support ( 10 ).

20 . The structural support ( 10 ) of claim 19 in which said tensioning element ( 14 ) is anchored to one end ( 25 ) of the row ( 13 ) outside the segments ( 15 )

21 . The structural support ( 10 ) of claim 19 in which tensioning element ( 14 ) is anchored to both ends ( 25 a , 25 b ) of the row ( 13 ) outside the row ( 13 ) of segments ( 15 ).

22 . The structural support ( 10 ) of claim 15 in which the length (L) of the individual segments ( 15 ) of the one row ( 13 ) is no more than 1.2 meters.

23 . The structural support ( 10 ) of claim 15 in which the tensioning element ( 14 ) comprises at least three tensioning element segments.

24 . The structural support ( 10 ) of claim 15 in which each segment ( 15 ) has a bottom ( 15 a ), a cap ( 15 c ), as well as two lateral walls ( 15 b ) extending in row orientation (R).

25 . The structural support ( 10 ) of claim 15 in which said structural support ( 10 ) is a truss girder.

26 . The structural support ( 10 ) of claim 25 including at least one row ( 13 ) of said segments ( 15 ) in a lower chord ( 11 ) of the support ( 10 ) and/or at least one row ( 13 ) of said segments ( 15 ) in an upper chord ( 12 ) of the support ( 10 ).

27 . The structural support ( 10 ) of claim 26 in which between the lower chord ( 11 ) and the upper chord ( 12 ) there are arranged vertical framework elements ( 18 ) extending in an inclined manner relative to the vertical, and at least one end section ( 20 ) of a framework element ( 18 ) being held between adjacent segments ( 15 ).

28 . A crane bridge ( 33 ) comprising at least one support ( 10 ) according to claim 15 .

29 . The crane bridge ( 33 ) of claim 28 including at least one end carriage ( 35 ) arranged on one end ( 21 a,b ) of the support ( 10 ), and said tensioning element ( 14 ) is anchored in the end carriage ( 35 ) for bracing the end carriage ( 35 ) against one of the segments ( 15 ) of the row ( 13 ).

30 . A method of providing and assembling the structural support of claim 15 including the steps of:
providing the segments ( 15 ) and the tensioning element ( 14 ) at a construction site at the location of use;
arranging the provided segments ( 15 ) to form a row ( 13 ) at the construction site; and
bracing the segments ( 15 ) arranged in the row ( 13 ) with respect to each other by means of the tensioning element ( 14 ) at the construction site.

Assignees

• Stahl R Schaltgeraete Gmbh

Inventors

• Arnhold Thorsten
• Hermanowski Clife

Classifications

• H05K5/0215

  with semi-permeable membranes attached to casings · CPC title

• H02B1/28 Primary

  dustproof, splashproof, drip-proof, waterproof or flameproof · CPC title

• A62C4/00 Primary

  Flame traps allowing passage of gas but not of flame or explosion wave · CPC title

• H05K5/0213

  Venting apertures; Constructional details thereof · CPC title

• H02K5/136

  explosion-proof · CPC title