Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS1542740 A
Publication typeGrant
Publication dateJun 16, 1925
Filing dateMay 31, 1924
Priority dateMay 31, 1924
Publication numberUS 1542740 A, US 1542740A, US-A-1542740, US1542740 A, US1542740A
InventorsSpillman Edward T
Original AssigneeV W Ventilator Company
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1542740 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

June 16, 1925. 1,542,740" E. T. SPILLMAN VENTILAT OR Filed llay 31, 1924 INVENTOR.

- EDWARD T. SPILLMAN latented June 16, 1925.




"Application filed May 31,

To all whom it may concern:

Be it lmown that I, EDWARD T. SPILL- MAN, a citizen of the United States of America, residing at Columbus, in tl e county of Franklin and Stateof ()hio, have invented certain new and useful Improvements in Ventilators, of which the follow-- ing is a specification. My present invention relates generally to ventilators and more particularly to ventilators of the type described and claimed in my Patent Number 1,49'L996, dated June 17, 1924:, my primary object being to extend and adapt such a ventilator to use-in connection with industrial buildings of various characters, for instance paper mills, power houses, factories, foundries, car shops, glass factories, laundries, round houses, freight houses and the like, and especially those buildings wherein the dripping of condensed water from steam and vapor passing through the ventilators is detrimental to the work carried on within the building.

My present improvements are generally embodied in a ventilator of the type above mentioned, by providing the same with a supporting base and a hood, both arranged and constructed to avoid the condensation of steam and water vapor on the inner sur face thereof, together with means whereby to protect the hood and to cooperate in the support of certain of the other parts.

' In the accompanying drawing which illustrates my present invention and forms a part of this specification,

Figure 1 is a side view showing my in1- proved ventilator for application to a ridge roof,

Figure 2 is a similar view showing the same for application to a flat sloping roof, and

Figure 3 is a'vertical sectional viewtaken centrally through my improved ventilator on an enlarged scale.

Referring now to these figures, the cylindrical body 10 of my improved ventilator has a circumferential series of openings 11 therearound and extending downwardly therein from its upper edge, so as to'provide for the lateral passage of air from the interior of the body 10 into a series of external shields 12 grouped around the body opposite the openings 11. Theseshields are of U-shape as in my previous application and have side walls 13 tapering'from rela- 1924. Serial No. 718,973.

tively wire lower ends where they are secured to the external surface of the ventllator body 10, to relatively narrow upper portions where these side walls are spaced from the body 10, the shields being secured at their upper ends to supporting ring 1% around and spaced from the upper end of the body 10.

Supported above the body 10 and spaced therefrom'by virtue of vertical supporting arms 15, is a conical. hood 16 of such a diam ter that its lower outer edge extends beyond the upper edge of the body, this hood being surrounded in spaced relation by an upright circular storm band 17 securely held by virtue of its connection with the upstanding outer portions of angular supporting arms 18, the inner'portions of these arms being secured to the body 10 and the intermediate portions thereof being connected to and supporting the ring 14 to which the upper ends of the shields 12 are connected.

, At its lower end the body 10 telescopes the upper reduced portion 19 of a tubular tapering supporting base 20 whose lower larger end is cut away to fit a particular roof contour as for instance a ridge roof such as shown in Figures 1 and 3 or a flat sloping roof as shown in Figure 2, the lower larger end of the supporting base 20 being in either instance provided with a sur rounding flange 21 aifording means whereby the ventilator as a whole may be securely attached to the roof of a building in connection with which it is to be used, around the ventilating opening ofthe roof.

Thus the air within the building including steam and water vapor if such are present, rise within the tubular base 20 and in this way to the body 10 of the ventilator and it is obviously of great consideration to avoid the collection of condensed water upon the inner surface of the base 20 and the lower surface of the hood 16 which might otherwise drip within the building to the detriment of the work being carried on therein.

It is for the reason just stated that the tubular base 20 is formed with double walls spaced apart as at 22 for insulating purloo poses, this space being either a dead air space or filled with any suitable insulating wool or other material as may be desired to bring about the result which is sought for.

The hood 16 is likewise constructed with double walls spaced apart for insulating purposes as at 23, the space so formed being either a dead air space or filled with insulating material which by virtue of the provision of apertures or passages opening laterally into external shields, the body 10 is sufliciently insulated for the purposes above stated and my improvements thus bring about the desired results in a construction which is obviously of great strength, efii ciency and durability and one which operates automatically and continuously without mechanically working parts to get out of order, bind, rattle or squeal: for lack of lubrication. My improved ventilator is simple, strong and silent and will secure the desired results without cost beyond the first cost.

I claim:

1. A ventilator of the type described, including a vertical cylindrical body having apertures in the wall thereof, shields secured externally of the body opposite the apertures and in upwardly and inwardly inclined relation to, and spaced from, the

eluding a vertical cylindrical body having apertures in the wall thereof, shields secured externally of the body and into which the body opens through said apertures, said shields being of U-shape and having side walls secured at their lower portions to the body and having their upper ends spaced from the body, a ring to which the upper ends of the shields are connected, a conical hood above the body, a storm band around, and spaced from, the hood, supports upstanding from the body for the support of said band and to which the said ring is connected, and a supporting base on which the body is seated.

3. A ventilator of the type described, including a vertical cylindrical body having apertures in the wall thereof, shields secured externally of the body and into which the body opens through said apertures, a hood spaced above the body, a tubular supporting base on which said body is disposed, said base and said hood having double walls and insulating spaces between said walls whereby to prevent condensation on the inner surfaces thereof, a storm band around and spaced from the hood, a ring around, and connected to, the said shields, and angular supporting members upstanding from the body to which said ring and said band are connected.

In testimony whereof I have aflixed my signature.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3384001 *Oct 24, 1966May 21, 1968Hill H. MathisChimney cap
US4334460 *Jun 3, 1980Jun 15, 1982Giles Arthur EllisCap for a chimney
US6598668 *Apr 12, 2000Jul 29, 2003Marconi Communications, Inc.Exhaust system for electronic equipment enclosure
U.S. Classification454/367, D23/373, 454/36, 454/44
International ClassificationF24F7/02
Cooperative ClassificationF24F7/02
European ClassificationF24F7/02