US2692762A

US2692762A - Freeze-proof radiator

Info

Publication number: US2692762A
Application number: US292265A
Authority: US
Inventors: Schenkel Samuel
Original assignee: Individual
Current assignee: Individual
Priority date: 1952-06-07
Filing date: 1952-06-07
Publication date: 1954-10-26
Anticipated expiration: 1971-10-26

Description

O 1954 s. SCHENKEL FREEZE-PROOF RADIATOR Filed June 7, 1952 INS-[+- d R. Y ub Wm NC T m. a. S

Patented Oct. 26, 1954 UNITED STATES PATENT OFFICE FREEZE-PROOF RADIATOR Samuel Schenkel, Brooklyn, N. Y.

Application June 7, 1952, Serial No. 292,265

heating systems.

An important object is to provide a radiator that is freeze-proof; and to this end the radiator, which may be of the usual type comprising vertical sections secured together, is so constructed that the sections communicate with one another at progressively lower points in the direction of the outlet pipe. Hence no water is ever trapped in the radiator, and any water of condensation will drain out and be returned to the steam generator.

Other objects and advantages are made clear in the following description, taken with the accompanying drawings, which illustrate the best form of my invention now known to me. But this disclosure is explanatory only and variations in structural details may be adopted without omitting or deviating from the essential characteristics defined in the appended claims.

On said drawings,

Figure l is a longitudinal vertical section of a radiator according to this invention, and

Figure 2 is an end elevation.

The radiator is made up of hollow sections I, and it is supported on short legs 2, which are formed on the bottoms of the sections at the two ends of the radiator, only one of said end sections being shown. The inlet pipe for steam is shown at 3, connected to the upper part of one end section, and the outlet pipe 4 is coupled to the section at the opposite end. The radiator has the usual air vent 5, kept closed by a screw plug 6.

The exhaust pipe 4 is always coupled in any suitable manner to one of the sections at the end of the radiator and steam condensing in the radiator flows through it back to the boiler of the heating system. The supply pipe 3 is usually connected to the opposite end of the radiator, but in some systems, this pipe 3 is omitted and the pipe =4 serves both to supply the steam to the radiator and drain the water from it.

In most radiators the bottom surfaces of the inside chambers in the sections are all at the same level. Water of condensation collects thereon; and if the temperature drops too much, as in unusually cold weather, it may freeze in the lower parts of the sections before running off at the pipe 4. In some installations the ra dia t or is set up in a tilted position, with the sections so inclined that the end section connected to the pipe 4 is lowest, to ensure full drainage 2 and avoid freezing; which is apt to cause the sections to burst and leak at the lower portions.

With my invention freezing and damage are prevented by making the bottom surfaces of the interior spaces in the sections slope gradually toward the section at one end to which the pipe t is coupled. The section I at the left on Fig ure 1 with the legs has an inside space with a sloping bottom surface leading to an aperture 6 that is in line with an opening I in the adjacent side of the next section Ia. This opening I has an outside boss 3 with an inside shoulder 9, and surrounding the opening 6 is a boss It with an outside shoulder II. The rim of the boss II) telescopes into the boss 8 and abuts the shoulder 9, while the rim of the boss 8 encircles the rim of the boss I0 and abuts the shoulder I I. The joint is sealed by any suitable means.

Similarly the section la is joined to the next section Ib through an opening 6 in the section Ia and an alined opening 1 in the section It, with interfitting bosses 8 and It as before. The openings through which the sections I a and ID communicate are somewhat lower than the openings through which the sections I and I a are in communication; and so on to the last section coupled to the pipe 4. The sloping bottoms of the interior spaces in the sections and the sloping interior surfaces of the coupled bosses 8 and I0, the axes of said openings and the bosses surrounding them being inclined to the same extent, make a duct or channel that is straight and smooth along the bottom of the radiator, when the sections are upright and vertical, so that all condensed water will naturally flow down to the pipe 4, even if the heat is turned on" and the temperature falls below freezing. The radiator is thus always drained of any liquid water and freezing cannot take place.

The sections have the usual shape, being open with large apertures at the middle with spaces I2. Each section has perforated projections IS in the space I2 for rods I 4, the ends of which are threaded to receive nuts to hold the sections together.

Having described my invention, what I believe to be new is:

1. A radiator comprising hollow sections placed side by side, the section at one end of the radiator having an outlet opening in its lower portion on one side and the remaining sections each having in its lower portion an inlet opening at one side and an outlet opening at the other side, the inlet and outlet openings being respectively at increasingly lower points on each section from said one end of the radiator to its opposite end, the inside bottom surfaces of each section being inclined and flush with the lower edges of said openings, the sections having interfitting bosses coupling the sections together and surrounding said openings with the inlet opening of one section registering with the outlet opening of an adjacent section, the axes of said bosses also having the same inclination, so that said bottom surfaces form a sloping drain channel through said openings at the bottom of said radiator to the lowest of said outlet openings thereof.

2. A radiator comprising hollow sections placed side by side, the section at one end of the radiator having an outlet opening in its lower portion on one side and the remaining sections each having in its lower portion an inlet opening at one ide and an outlet opening at the other side, the inlet and outlet openings being respectively at increasingly lower points on each section from said one end of the radiator to its opposite end, the inside bottom surfaces of each section being inclined and flush with the lower edges of said openings, the sections having interfitting bosses coupling the sections together and surrounding said openings with the inlet opening of one section registering with the outlet opening of an adjacent section, the axes of said bosses also having the same inclination, so that said bottom surfaces form a sloping drain channel through said openings at the bottom of said radiator to the lowest of said outlet openings thereof, said sections being of equal height with their outside bottom surfaces substantially in flush horizontal alinement and being open in the middle with large central apertures, and having lugs at the upper and lower edges of said apertures for tie bolts to secure said sections in assembled relation.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 154,561 Mills Sept. 1, 1874 321,232 Lounsbury June 30, 1885 475,849 Dimmick et a1 May 31, 1892 1,161,567 Williams Nov. 23, 1915