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Publication numberUS835966 A
Publication typeGrant
Publication dateNov 13, 1906
Filing dateMar 3, 1905
Priority dateMar 3, 1905
Publication numberUS 835966 A, US 835966A, US-A-835966, US835966 A, US835966A
InventorsFrank Lyster
Original AssigneeFrank Lyster
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Trap-door, skylight, and roof-ventilator.
US 835966 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

PATENTED NOV. 13, 19 06.





v IIVVE/VTOH C? fij j wg LK ivy o Gurwan/M416- ATTORNEY PATENTED NOV. 13, 1906.






,tors may be constructed of sheet metal or FRANK LY-STER, OF PHILADELPHIA, PENNSYLVANIA.


Specification of Letters Patent.

Patented Nov. 13, 1906.

Application filed March 8, 1905. Serial No. 248,210.

To all whom it may concern.-

Be it known that I, FRANK LYSTER, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented a new and useful Trap-Door, Skylight, and Roof- Ventilator, of which the following is a specification.

This invention relates to improvements in means for securing ventilation in trap-doors, skylights, roofs, and similar constructions. Its objects are to effect improvements in means for ventilation whereby the ventilaother material efl'ectually'braced to provide for ample strength, yet of light Weight and economical construction.

Another object is to afford a construction which shall effectually prevent the entrance of rain or snow to the interior of the ventilator, the joints between it and the arts to which it is attached, and to the iiuilding below.

Further objects are to provide such improvements as will allow for free ventilation and in the provision for condensation of moisture.

I attain these objects by the combination, construction, and arrangements of parts hereinafter fully described, and shown in th acoomp anying drawings, in which Figure 1 is a perspective view, partially in section, of roofs having my improvement in ridge-ventilators thereon. Fig. 2 is a sectional view, partially in perspective, of one form of ventilator. Fig. 3 is an alternative form of construction of the same, showing the deflecting-plates and angular inner stormguard. Fig. 4 is an arched form of ventilator with interior gutter, providing for the condensation of moisture and leakage. Fig. 5 shows my invention as applied to trap- Similar characters refer to similar parts throughout the several views.

These ventilators are preferably constructed of non-oxidizable thin sheet metal bent into any approved shape, as indicated by the character 1, which refers to a fanciful form thereof, or as at 1 and 1 which is a common form thereof, or as at 1 which indi cates an arched or dome-shaped covering.

2 refers to the downwardly-extending members, which may be further turned laterally inward, as at 3 in Fig. 2, or extended farther out, as at 4 in Fig. 3, thence vertically downward and then laterally inward, as

at 3 in Fig. 3, or at 3 in Fig. 4, or again at 3 in Fig. 1. These members or webs 3, 3, 3 and 3 are provided with perforations 5 to allow for the free exit of air from the inside of from entering into the building. The said flanged members 6 and 7 are preferably sweated or otherwise united to the metal roofing, forming means of support for the ventilator.

Further means of securing and bracing the ventilator are provided forby the plates 8, secured at their lower ends to the roof-supports and having their upper ends lapped to form the dutched edge 9.

In some cases I make use of an auxiliary moisture-deflecting plate 10 to check the aircurrents of moisture and effectually carry off the same, as shown particularly in Fig. 3.

In F i 4 the material of the roof is carried vertical y upward to form a deflecting-plate, bent double upon itself, with a dutched edge, as at 11 carrled downward past the Woodwork at 12 of the roof, bent outwardly in register with it, doubled upon itself and secured to the inner side of the roof, as at 13.

From thence it is turned downwardly, forming the sides 16 and 16 of a trough or gutter 14, having an imperforate bottom 15.

The upper portion of the gutter sides 16 and 16 have perforations 17 and 17 a to allow for the free egress of air from the building. By this form of construction should an moisture have entered the ventilator it will be caught in the gutter and carried out of the building, the said gutter being connected with the exterior of the roof.

The view, Fig. 1, shows a special form of angular roof construction, in which the material of the ventilator is extended from one roof to another and underlaid with slate 0 other roofing material.

It will be understood from the description hereof that I may vary the mode of construction and application thereof, but without departing from the general spirit of the -in- -vention, as will be well understood by those ent, is--- 1. In a ventilator, the combination with a non-oxidizable top coverin flanges depending'therefrom and inwar, y-extending perforate members, vertical members therefrom having outwardly-turned flanges adapted to be attached to the roof-covering; of outwardly-turned angular deflectinngates within the said ventilator and of rei orcing-stri s uniting the ventilator to the roof, all s11 stantially as shown and described.

2. In a ventilator, the combination with a non-oxidizable top covering, of depending flanges therefrom, inwardly-extending members thereto provided with perforations, vertical members therefrom and outwardlyssaeee i turned flan es attached to the roof-covering,

deflecting-p ates within the said ventilator, auxiliary deflecting-plates extending outwardly from the main deflecting-plates, and strengthening members further uniting the roof with the said ventilator, all substantially'as shown and described.

3. In a tra -door for roofs, the combination with a oorin having open spaces at intervals therein, o a non-oxidizable, metallic covering for the said openings, having means of ventilation and moisture-excluding plates arran ed interior-1y, all substantially as shown an described.

In testimony whereof I have signed myname to this specification in the presence of two subscribing witnesses.

' FRANK LYSTER. Witnesses:


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2569388 *Jul 31, 1947Sep 25, 1951Redding SimsVented awning
US2614300 *Aug 3, 1948Oct 21, 1952Stinnett Charlie FAwning
US2625094 *Dec 10, 1951Jan 13, 1953John BonforteVentilating ridge roll for roofs
US2868104 *Nov 27, 1956Jan 13, 1959Honholt Knud ACombination ridge capping and ventilator for use on structures with pitched roofs
US3036508 *Apr 15, 1958May 29, 1962Lester L SmithRoof ventilator
US3073235 *Feb 26, 1959Jan 15, 1963SmithRoof ventilators
US3311047 *Apr 12, 1965Mar 28, 1967SmithRoof ventilators
US4000688 *Jul 18, 1975Jan 4, 1977Leigh Products, Inc.Ventilator for roof ridge
US5090838 *Apr 19, 1991Feb 25, 1992Kelly IndustriesModular roof panel assembly and locking apparatus for a modular panel system used in constructing relocatable buildings
US5189852 *Dec 16, 1991Mar 2, 1993Kelly IndustriesModular roof panel assembly and locking apparatus for a modular panel system used in constructing relocatable buildings
US5394666 *Jan 18, 1994Mar 7, 1995A. Zahner Sheet Metal CompanyInverted seam roof covering system
US6283852Aug 11, 2000Sep 4, 2001Klauer Manufacturing CompanyRoofline ventilator assembly
US6554700Jan 22, 2002Apr 29, 2003David J. DixonRidge vent for tile roofs
US6966156 *Mar 14, 2003Nov 22, 2005Dixon David JRidge vent for tile roofs
WO1984002970A1 *Jan 19, 1984Aug 2, 1984Dobel AbVentilator for ventilated roofs
Cooperative ClassificationE04D3/40