US2392631A

US2392631A - Flue-liner drain

Info

Publication number: US2392631A
Application number: US583286A
Authority: US
Inventors: Berndt Edward
Original assignee: Individual
Current assignee: Individual
Priority date: 1945-03-17
Filing date: 1945-03-17
Publication date: 1946-01-08
Anticipated expiration: 1963-01-08

Description

Jan. 8, 1946.

E. BERNDT FLUE-LINER DRAIN Filed Malrch 17, 1945 Patented Jan. 8, 1946 apaaaai Application March 17, 1945,

1 Claim.

This invention relates to the construction of flueor chimney-liners of the type which have been found essential to protect the masonry against excessive condensation which takes place in the flue or chimney, particularly when used for as-fired boilers or furnaces. In situations where such'excessive condensation takes place in the flue or chimney the masonry deteriorates, sometimes quite rapidly, often causing damage to the interior of the house. The mortar between the bricks, being especially vulnerable to such flue or chimney condensation tends to disintegrate. Allowed to continue unchecked a hazardous condition of the flue or chimney above the roof may result. Below the roof, the disintegrating mortar permits a seepage through into the interior plastered walls and ceilings.

Heretofore it has been a practice to protect fines or chimneys by installing a liner. At the lower end the liner has to be provided with a pipe to drain off the condensation into the house sewer. However, such constructions have afforded no protection against the clogging of the drain by the accumulation of soot, leaves, and twigs in the bottom of the flue-liner, neither have they allowed for easy repair or replacement of the drain, nor have they permitted a ready inspection of the drain or the flue-liner itself, to determine conditions thereof.

The main objects of this invention, therefore, are to provide an improved form of flueor chimney-liner construction which locates the drainage connection entirely outside the flue or chimney where it is accessible for convenient attachment of the drain pipe and a subsequent inspection and repair as occasion may require; to provide an improved construction of a flue-liner drain of this kind adapted for attachment to the end of a flue-liner section extending to the exterior of the flue; to provide a flue-liner drain with a removable part which will permit inspection of the drain outlet and the flue-liner and allow for a removal of accumulations in the flueliner; and to provide a device of this kind which is simple and economical to manufacture, easy of attachment, and permanently effective in its functioning.

In the accompanying drawing-- Figure 1 is a cross-sectional view of a flue equipped with a flue-liner, at the lower end of which is attached a flue-liner drain constituting a preferred embodiment of this invention;

Figure 3 is a fragmentary detail taken in the line 33 of Figure 2.

The drawings show a flue or chimney 4, of conventional construction, wherein has been arranged a flue-liner 5. Near the lower end of the liner is a branch 6, for connection with the moke outlet of the main heating plant, and a second branch 1 for connection of an auxiliary hot water, heater.

A flue-diner drain 8 embodying this invention and formed with a sump or drain pocket 9 and equipped with an inspection door In is secured to the outer end of the horizontal flue-liner section II.

In the form herein shown the flue-liner drain is a, cast aluminum sleeve. Although such a casting is preferred, the flue-liner drain could be formed of sheet metal if desired. The axis of the sleeve is set at a slight angle so that when telescopicall connected with the section II it conforms to the slant thereof and the drain pocket 9 is approximately vertical.

As is evident from the drawing, the pocket 9 is in the nature of an extension formed near the outer end of the sleeve 8. The flat bottom I! is offset radially from the circumference of the sleeve and with the closely-spaced parallel vertical side walls l3 and the more distantly-spaced vertical end walls It, constitutes a narrow, elongated pocket of U-shaped cross section both in the direction of the axis of the sleeve 8 and transversely thereto.

inverted U-shaped screen I! is fitted into the.

pocket 9. A grip I8 is suitably secured thereto by means of nuts [9 so that the screen may be easily removed and replaced.

The inspectiondoor ID has a lug 20 formed on the lower end which fits over the upper end of the outer side wall 13 of the pocket -9 and in a way serves to hinge the door on the sleeve 8. At' its upper end, the door is provided with an apertured lug 2| registering with a similarlyapertured lug 22 on the adjacent part of the sleeve '8. A bolt 23 extends through the registering apertures'in the lugs 2| and 22 and accommodates a wing nut 24 by which the door In is secured in place.

An arrangement of a flue-drain in accordance with this invention permits the condensation formed in the flue-liner 5 to be readily drained into the house sewer, thereby precluding the possibility of any accumulations of moisture in or at the bottom of the flue-liner. If any leaves or twigs or other foreign matter finds its way into the flue-liner, they will gravitate toward the pocket 9 of the flue drain where they will be caught by the screen [1 so as'to preclude the possibility of clogging the dra'n pipe 16. 7

As o a n si 'i t d b 1 very easily -rerhovedy-not only to permit" airlinspection of the condition around the drain pocket 9, but if necessary remove any accumulation To facilitate this the screen I! may be taken out, cleaned; and" replaced. Such removal of the doorl l lltzperxnits a'mirror to be inserted for the purpose of examine of material around the screen H.

ing the condition of the vertical flue-liner 5.

Variations and modifications in the details of structure and arrangement of the parts may be resorted to within the spirit and coverage of the appended claim.

I claim: V e r r 'A combination flue-liner drain and inspection unit comprising an angular tubular member having one end thereof adapted for telescopic attachment to a flue liner and the other end projecting outwardly and downwardly exteriorly of sanguine closure platetremov'ably {secured to said "other'end ofsaid member to l ermit inspection of said flue liner when said plate is removed,

a condensation sump formed in said member below said'plate to receive condensation from said tubular'member, and a connection to said sump for theat'tachment of a'drain pipe.

EDWARD BERNDT.