Turbine ventilator

Claim 2

A turbine ventilator comprising a draw pipe adapted to be connected with an opening in a roof; a base support in said draw pipe; an upright support shaft supported by said base support thereabove; a rotatable turbine supported by said support shaft, said turbine extending over said draw pipe and being formed of a plurality of ribs which define an air moving and air drawing mechanism for inducting air through said draw pipe; wind struts supporting the upper portion of said shaft; adjustable connection means on said struts collectively enabling adjustable connection of said turbine above said draw pipe to accommodate changes in angular position with respect to said draw pipe; a generally planar flanged member joined to the lower portions of said draw pipe and adapted to be joined to a roof; said turbine including a top bonnet which incorporates an abutting shoulder thereon which contacts a plurality of individual and similar ribs, said shoulder positioning the upper end of said ribs which are joined to said bonnet by means of a connective pin in said ribs and said ribs are directed at predetermined angles by said shoulder with respect to said bonnet and with respect to one another to thereby define said turbine ventilator; and, an encircling collar connected to said ribs at their lower ends.

Claim 3

The turbine ventilator of claim 1 wherein said draw pipe is non-round and said rotatable turbine incorporates a round collar at its lower portions which is larger than said draw pipe and surrounds said draw pipe.

Claim 4

The turbine ventilator of claim 1 wherein said base support incorporates four approximately perpendicular members extending outwardly from a central bushing, said bushing receiving said support shaft therein, said four members being arranged wherein two of said four members are pivotally connected with respect to said draw pipe for rotation along an axis through said pivot and through said bushing and wherein the remaining two of said four members are slidably connected with respect to said draw pipe, said slidable connections being along a radius of curvature utilizing the axis as a center point.

Claim 5

The structure of claim 3 wherein said two slidably connected slidable connections incorporate a pair of curved segments attached to said draw pipe on the interior thereof and having a radius of curvature utilizing said axis as its center; a pair of diverging struts comprising each of said members and extending to an arcuate curved surface conforming with said curved segments and adapted to have slidable contact therewith; a guide lip on one of said curved surface and said curved segments; and, releasable joinder means for releasably connecting said support base At a selected angle with respect to said curved surfaces.

Claim 6

The structure of claim 4 wherein said releasable means includes an elongate slot means in said curved segments, a bolt extending therethrough and adapted to be connected with a nut, and an opening means for receiving said bolt into said support base.

Claim 7

The structure of claim 1 wherein said collar is circular and has on its exterior a plurality of projecting pins having enlarged non-round heads thereon and wherein said ribs include opening means thereon for engaging said pins, said opening means being of non-round configuration such that said opening means pass over said pins in a first position with respect to said collar and move to a locking relationship on movement to a second position with respect to said collar.

Claim 8

The structure of claim 6 wherein said collar includes at least a pair of radially inwardly directed braces which connect to a central bushing which surrounds said support shaft.

Claim 9

The structure of claim 7 wherein said collar includes spaced lock tabs about the periphery thereof which are adapted to contact and align the respective edges of the plurality of ribs connected therewith.

Claim 10

The structure of claim 8 wherein said lock tabs abut adjacent pairs of said ribs.

Claim 11

A turbine for use with a ventilator comprising a base support adapted to span a pipe in a roof; an upright shaft supported by said base support; a rotatable turbine supported by said shaft, said turbine including a plurality of ribs which define an air moving and air drawing mechanism for inducting air through said turbine; a bonnet on the top side of said turbine joined to said ribs; a bushing on the lower side of said bonnet for engaging said shaft for rotation; an internal cross brace in said turbine extending thereacross; an alignment guide on said cross brace which guide cooperates with said bushing and said shaft to align and position said turbine in a specified upright position; an abutting shoulder which contacts a plurality of individual and similar ribs, said shoulder positioning the upper end of said ribs which are joined to said bonnet by means of a connective pin in said ribs and said ribs are directed at predetermined angles with respect to said bonnet and with respect to one another to thereby define said turbine ventilator; an encircling collar for connection of the lower ends of said ribs; a plurality of projecting pins having enlarged non-round heads on said collar; and, opening means in said ribs for engaging said pins, said opening means being of non-round configuration such that said opening means pass over said pins in a first position with respect to said collar and move to a locking relationship on movement to a second position with respect to said collar.

Claim 12

A turbine for use with a ventilator comprising a base support adapted to span a pipe in a roof; an upright shaft supported by said base support; a rotatable turbine supported by said shaft, said turbine including a plurality of ribs which define an air moving and air drawing mechanism for inducting air through said turbine; a bonnet on the top side of said turbine joined to said ribs; a bushing on the lower side of said bonnet for engaging said shaft for rotation; an internal cross brace in said turbine extending thereacross; an alignment guide on said cross brace which guide cooperates with said bushing and said shaft to align and position said turbine in a specified upright position; an abutting shoulder which contacts a plurality of individual and similar ribs, said shoulder positioning the upper end of said ribs which are joined to said bonnet by means of a connective pin in said ribs and said ribs are directed at predetermined angles with respect to said bonnet and with respect to one another to thereby define said turbine ventilator; an encircling collar for connection of the lower ends of said ribs; a plurality of projecting pins having enlarged non-round heads on said collar; and, opening means in said ribs for engaging said pins, said opening means being of non-round configuration such that said opening means pass over said pins in a first position with respect to said collar and move to a locking relationship on movement to a second position with respect to said collar.

Claim 13

The structure of claim 10 wherein said collar includes spaced lock tabs about the periphery thereof which are adapted to contact and align the respective edges of the plurality of ribs connected therewith.

Claim 14

The structure of claim 11 wherein said lock tabs abut adjacent pairs of said ribs.

Claim 15

The apparatus of claim 10 wherein said base support includes a fixed, upstanding open-ended elongate hollow passage.

Claim 16

The apparatus of claim 10 wherein said cross brace and guide surround said shaft, and said bushing includes thrust bearing means.