Patent No. 2906624A: Apparatus And Method For Extracting Air From Beverages

Today in 1959, US Patent 2906624 A was issued, an invention of Pincus Deren, assigned to Pabst Brewing Co., for his “Apparatus and Method for Extracting Air from Beverages.” There’s no Abstract, although in the description it includes these claims:

The present invention consists in the method or process of controlling the air content of carbonated beverages, especially bottled beer, and to the apparatus for carrying out the process.

It is well known that conventional practices in bottling carbonated beverages, particularly beer, causes a certain amount of oxidation of some of the constituents of the product, resulting in an undesirable change in flavor and in accelerated instability which greatly reduces the shelf life of the beverage.

Numerous attempts were made to eliminate’the excess air, and it was found that to remove the excess air successfully it was necessary to cause the beverage to foam and permit the latter to rise in the neck of the bottle to expel the air above the liquid level. Also, it was found that, to achieve good results, enough of the foam must be formed to fill the neck with fine bubbles to the top of the rim of the bottleneck.

One means for producing foam is by knocking the bottle sufliciently to cause the release of the gas in the beer; another means is by jetting or squirting a stream of beer into the beer in the bottle after it has been filled. A third method is by the injection of a stream of CO gas into the liquid.

Control of the degree of foaming by the methods just described is very difficult. When the knocking procedure is used, the condition of the surface of the bottle influences the degree of foaming. When jetting, either with beer or with CO gas, the liquid content is disturbed, and small variations in the temperature of the product and on the inside surface of the container will result in different degrees of foaming. The uncontrolled foaming results in either great variations in the final air content, or in the loss of large quantities of beer.

The primary object of the present invention is to overcome the disadvantages inherent in the conventional 7 Another object of the invention resides in the provision of novel means for removing most of the air before the foam is formed.

A further object is to reduce the losses of beverage due to excessive foaming and thereby practically eliminate socalled short fills.

A still further object resides in the provision of novel means for creating instantaneous suction on the liquid just as the foam starts to form to facilitate the removal of air.

Still another object of the invention consists in the provision of a new and novel apparatus to permit the process and the steps thereof to be accomplished and carried out successfully.

Numerous other objects and advantages will be apparent throughout the progress of the specification.


Patent No. 831635A: Beer Pipe Cleaner

Today in 1906, US Patent 831635 A was issued, an invention of Joseph Strunce, for his “Beer Pipe Cleaner.” There’s no Abstract, although in the description it includes these claims:

This invention relates to certain new and useful improvements in an apparatus to be used for cleaning pipes, and while it is more especially intended to be employed for cleaning beer-pipes, such as are used for drawing beer from kegs, casks, or vessels, yet it is applicable for cleaning pipes used for other purposes; and it consists in certain peculiarities of the construction, novel arrangements, and operation of the various parts thereof, as will be hereinafter more fully set forth and specifically claimed.


Patent No. 4542682A: Lauter Tuns

Today in 1985, US Patent 4542682 A was issued, an invention of John C. Hancock, for his “Lauter Tuns.” Here’s the Abstract:

A lauter tun (10,100) has a bottom (16) comprising two flat plates (18,20) joined together on a straight line (see 22), each plate (18,20) sloping downwardly from the center-line to the peripheral wall (14) of the tun, such that during flushing, water flows down each slope to flush solids towards two large collection points (26) located at the lowest point of the bottom 16.

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Patent No. 633341A: Siphon For Beer

Today in 1899, US Patent 633341 A was issued, an invention of Johann Dreckmann, for his “Siphon For Beer.” There’s no Abstract, although in the description it includes these claims:

This invention consists of an improved construction of fountain or siphon for drawing beer and carbonated or aerated drinks.

The herein-described fountain or siphon comprising two vessels, one a liquid-receptacle and the other a gas-receptacle with a reducing-valve connecting the two and a check-valve opening from the liquid-receptacle into the gas-receptacle, whereby a substantially constant pressure is maintained in the liquid-receptacle while dispensing therefrom, substantially as described.


Patent No. 505424A: Beer Tempering Device

Today in 1893, US Patent 505424 A was issued, an invention of Gustav Kruse, for his “Beer Tempering Device.” There’s no Abstract, although in the description it includes these claims:

The object of my invention is to provide a beer tempering device in which the difficulty of cleaning the pipes, or worm, thereof shall be reduced to a minimum and in which, at the same time, it may be done to perfection.l As heretofore constructed these devices were uncleanly and, consequently, unhealthful because there was no known means of cleaning them thoroughly, and; hence, where the government looks after the sanitary properties of such devices, their use has been prohibited, generally, because; even after a thorough cleansing with known methods, their cleanliness was either doubtful, or: ultimately, could be proved to be unsatisfactory. To overcome said difficulties I have devised a `new mechanism which, when used according to my direction will overcome all objections and be perfectly clean.


Patent No. 285246A: Hop Drier

Today in 1883, US Patent 285246 A was issued, an invention of James L. Filkins, for his “Hop Drier.” There’s no Abstract, although in the description it includes these claims:

I have invented certain new and useful Improvements in Driers for Hops and other Substances, of which the following is a complete description.

The invention consists in certain novelties in the construction and arrangement of the parts of which the apparatus is composed, as will hereinafter more fully appear.


Patent No. 411337A: Means for Boiling, Cooling Beer

Today in 1889, US Patent 411337 A was issued, an invention of Constantin Hoffmann and Lorenz Ebert, for their “Means for Boiling, Cooling Beer.” There’s no Abstract, although in the description it includes these claims:

The present invention relates to apparatus for sterilizing and cooling beer-wort, whereby the latter is kept completely protected against any injurious actions of the atmosphere during the whole cooling process-that is to say, from the boiling-copper to the fermenting-vat. According to the present cooling process the beer-wort is cooled either on coolers or by means of special apparatus. This takes place with the admission of ordinary atmospheric air, which has a deleterious effect upon or infects the beer-wort. That such an infection frequently takes place is proved by the many changes in the beer-wort during the cooling processes heretofore practiced, and by the various abnormal phenomena of fermentation which occur despite the employment of sound yeast. In order to obviate these inconveniences, we provide the known cooling apparatus with a casing which can be hermetically closed and bring the beer-wort, which runs boiling hot, and therefore free from germs or sprout, to the cooling apparatus into contact with sterilized air. By the introduction of sterilized air into the casing of the cooling apparatus at a certain overpressure during the cooling the beer wort remains quite free from germs or sprout, and after that the air necessary for the fermentation is introduced according to requirements and the exhalation of the same is effected.


Patent No. 4612196A: Preparation Of Low Alcohol Beverages By Reverse Osmosis

Today in 1986, US Patent 4612196 A was issued, an invention of Henry Goldstein, Charles L. Cronan, and Etzer Chicoye, assigned to the Miller Brewing Company, for their “Preparation of Low Alcohol Beverages by Reverse Osmosis.” Here’s the Abstract:

A traditional flavored fermented alcoholic beverage of low alcohol content is prepared by reverse osmosis with a thin layer composite membrane which has a support layer of polysulfone, a barrier layer of polymer prepared from a polyamine and a polyacyl, and a fiber backing. The membrane has a molecular weight cut-off of less than about 100 for organics and rejects the volatile components which contribute to flavor and aroma and permits about 25 to about 30% alcohol in the beverage to pass.

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Patent No. 436498A: Apparatus For Brewing

Today in 1890, US Patent 436498 A was issued, an invention of Carl Hafner, for his “Apparatus For Brewing.” There’s no Abstract, although in the description it includes these claims:

My invention relates to an improved apparatus for use in the process of making beer.

In the usual process of boiling beer or wort with hops the essential oils, aroma, and volatile oils escape and are wasted or are condensed and passed back into the brew-kettle during the boiling process; but as the essential oils, aroma, etc., vaporize and escape when the hot liquid remains at a temperature of about Reaumur, and as it is necessary after boiling the wort with the hops a certain time to allow the boiling liquid to cool oft in the open air, it will thus be seen that these volatile matters will still escape.

The object of my invention is to provide an improved apparatus for use in the process of manufacturing beer, whereby the essential oils, volatile matters, etc., are saved and afterward added to the beer, and whereby a great saving is made in hops. These objects are accomplished by and my invention consists in certain novel features of construction and combinations of parts, more fully described hereinafter, and particularly pointed out in the claim.


Patent No. 459635A: Rinsing Tub

Today in 1892, US Patent 459635 A was issued, an invention of John D. Kelly, for his “Rinsing Tub.” There’s no Abstract, although in the description it includes these claims:

This invention relates to a glass and tumbler washer and rinser for use in bar-rooms.

The objects of the invention are to provide a suitable washer to be located behind the bar in which tumblers or glasses may be plunged and washed or rinsed, to construct the washer in a cheap and simple manner, adapt it to avoid waste of water, and to be readily cleaned.