Patent No. 810745A: Method Of Pasteurizing Beer

Today in 1906, US Patent 810745 A was issued, an invention of Hugo Gronwald, for his “Method of Pasteurizing Beer.” There’s no Abstract, although in the description it includes this summary:

I have invented a new and Improved Method of Pasteurizing Beer in Barrels, of which the following is a full, clear, and exact description.

The hitherto-known method of pasteurizing beer in the barrels in which it is to be transported had the disadvantage that when the barrels were provided with a separate expansion-chamber the natural carbonic acid contained in the beer was`partly lost and the germs or barm at times contained in this chamber could not be killed, so that the beer frequently overflowing into this chamber was not entirely free from germs, while when the necessary space for expansion was provided by not filling the barrel complete y it had to be filled up with beer from another source. These disadvantages are removed according to my improved method by dividing the quantity of beer required for completely filling the barrel between two connected vessels-namely, a lower detachable vessel, hereinafter called receiver, equal in capacity to the required space for expansion and a barrel communicating with and arranged above this vessel in such a manner that the receiver is completely filled, while in .the barrel an empty expansion-space is left equal to the capacity of’ the receiver. The beer is then pasteurized in the barrel and receiver and cooled in the usual way, after which the carbonic acid disengaged during the pasteurizing and which as risen into the. expansion-space in the barrel can be returned Without loss to the beer-‘for instance, by shaking the barrel. T he pasteurizing apparatus being then turned upside down, the beer runs into the barrel from the receiver, while the excess of carbonic acid mounts into the receiver, so that by this simple exchange of the contents of the vessels a filling up of the beer-barrel from another source is rendered unnecessary and loss of carbonic acid is avoided.

Various apparatus or plant may be used for carrying out my said method, provided the barrel and receiver are connected into a combined apparatus.


Patent No. 981768A: Jetting Attachment For Bottle-Fillers

Today in 1911, US Patent 981768 A was issued, an invention of Alvin N. Ketterer, for his “Jetting Attachment For Bottle-Fillers.” There’s no Abstract, although in the description it includes this summary:

My invention relates to improvements in jetting attachments which are designed to control and direct jets of beer into bottles, one at a time in succession; the objects of which are to provide an attachment of this class, which can readily be attached to the discharge chute of beer bottle fillers now. Further objects are to so construct a jetting device that the same shall be extremely. simple, substantial and durable, and not liable to get out of order, be extremely cheap in cost of manufacture, and require but little attention or care.


Patent No. 270844A: Beer-Cooler

Today in 1883, US Patent 270844 A was issued, an invention of Friedrich Richter, for his “Beer-Cooler.” There’s no Abstract, although in the description it includes this summary:

My invention relates to beer-coolers, and will be fully described hereinafter.

Heretofore with coolers constructed according. to the plan in general use the ends of the pipes through which the cooling-liquid passes have been united by means of elbows, and as the beer or other liquid to be cooled had to be poured into pans or troughs at the top to flow through perforations in said troughs down over and around the pipes to a pan at the bottom of the cooler, that it might be deprived of its heat in this passage, it has been found difficult to keep the pipes clean, owing to their many elbows, and hence my invention, the object of which is to simplify the connections be tween the pipes, dispenses with the elbows altogether and presents a solid, smooth surface at each end of the beer-cooler, and at the same time unites the parts by such connections as will .admit of the cooler being easily taken apart when it is to be cleaned or repaired.

Another object of my invention is to provide a means for controlling the flow of the cooling-fluid, all as will be fully set forth farther on.


Patent No. 2187526A: Hop Picking Machine

Today in 1940, US Patent 2187526 A was issued, an invention of Edouard Thys, for his “Hop Picking Machine.” There’s no Abstract, although in the description it includes this summary:

This invention relates to hop picking machines the picking of hops in the fields where they are grown.


Patent No. 5079927A: Beer Cooling Apparatus

Today in 1992, US Patent 5079927 A was issued, an invention of A. J. Rodino and James R. Kinkaide, for their “Beer Cooling Apparatus.” Here’s the Abstract:

A method and apparatus is provided for dispensing beer from a keg without excess foaming wherein the keg and beer temperatures and fluid pressures are controlled such that beer is dispensed at predetermined temperatures at substantially atmospheric pressures even over a wide range of atmospheric temperatures. Beer is supplied under pressure from the keg to a constricted flow line which abruptly decreases flow pressure. A portion of the constricted flow line is immersed in a refrigerating bath to reduce beer temperature. The length of the constricted flow line to the dispensing nozzle is sufficient long and its internal diameter sufficiently smooth that beer flow therethrough is stabilized to significantly reduce turbulence. Beer pressure drop through the nozzle is minimal and beer flow is relatively laminar.

The portion of the constricted line immersed in the refrigerating bath is formed from coiled tubing. The bath fluid is recirculated and the bath temperature is sufficiently low as to cause ice to form. The constricted line has a constant internal diameter throughout its length, and the dispensing nozzle has that same internal diameter. A portable embodiment includes a wheeled trailer for supporting and sheltering the keg.


Patent No. EP0208450A2: Beer Filtration

Today in 1987, US Patent EP 0208450 A2 was issued, an invention of Ronald Shackleton, for his “Beer Filtration.” Here’s the Abstract:

It has been proposed to filter beer or tank bottoms using crossflow filtration. In accordance with the invention, this crossflow filtration is achieved using ceramic membranes. In a particular form shown in figure 1, a two stage filtration process combines the functions of clarification and recovery from tank bottoms. Beer is drawn from a tank 1 by a centrifugal pump 2 to a primary filtration stage comprising a circuit in- cludinga a circulating centrifugal pump 3, a ceramic membrane filter 4 and a cooler 5. A proportion of the circulating liquid is drawn off by a positive pump 8, and passed to a secondary filtration stage, again comprising a circuit including a circulating positive pump 9, a ceramic membrane filter 11 and a cooler 12. A proportion of the retentate is drawn off via a line 14. This retentate is of a pasty consistency and normally has a commercial value, in that it is free of kieselguhr or other filter aid.


Patent No. 2143565A: Beer Stabilizer Coil Control

Today in 1939, US Patent 2143565 A was issued, an invention of Raymond G. Minea, for his “Beer Stabilizer Coil Control.” There’s no Abstract, although in the description it includes this summary:

My invention relates to an improvement in regulator valves, particularly adapted for use in dispensing beer, ale, or the like; and to a dispensing apparatus for controlling the flow of the beer or other liquid through the valve.


Patent No. 8349378B2: Brewing Process And Brewery Installations

Today in 2013, US Patent 8348086 B2 was issued, an invention of Klaus-Karl Wasmuht and Cornelia Folz, assigned to Krones Ag, for their “Brewing Process and Brewery Installations.” Here’s the Abstract:

A brewing process including taking off a fluid having a starting temperature from a heat store; feeding the fluid to a plurality of heat consumers for releasing heat; and returning to the heat store the fluid which has a final temperature. The brewery installation has a heat store for controlling the flow of the fluid in the installation, and a plurality of heat consumers each of which is connected to the primary circuit for releasing heat. Improved efficiency is achieved in part by the final temperature of the fluid which flows out of the respective heat consumers is measured and the return of the fluid is controlled as a function of the measured final temperature.


Patent No. 3117005A: Process For The Manufacture Of Beer

Today in 1964, US Patent 3117005 A was issued, an invention of Morton William Coutts, for his “Process For the Manufacture of Beer and the Like.” There’s no Abstract, although in the description it includes this summary:

This invention relates to a process for the manufacture of beer and the like and has for its objects the provision of an improved continuous process for such manufacture which makes use of certain phenomena which occur during the preparation of brewers Wort and the fermentation thereof and which individually cause problems in production but which when combined bring about beneficial results.

For example, when brewers wort is boiled certain heat sensitive material precipitates and coagulate-s. It has been found that these precipitated particles while in a boiling state have adsorptive properties and take up from the wort many objectionable and unwanted flavours. It is normal practice to hold the hot wort before cooling, and during this time these particles coagulate and as they coagulate gradually lose their adsorptive powers, the adsorbed flavours again becoming soluble and so producing objectionable flavours in the finished beer.


Patent No. 2919806A: Hop Strainer

Today in 1960, US Patent 2919806 A was issued, an invention of Alvin Hock and Clarence Rechtin, assigned to the Brighton Corp., for their “Hop Strainer.” There’s no Abstract, although in the description it includes this summary:

Our invention resides in the provision of a novel hop strainer especially designed for obtaining instant separation of wort from hops.

Our invention relates in general to that type of mechanism shown in Patent No. 2,412,400 which issued to Alvin Hock on December 10, 1946. Novel features, however, have been incorporated in the machinery of the instant invention as will be emphasized in the passages which follow.

It is an object of our invention to provide a hop strainer which will remove a maximum amount of Wort from the hops without bruising or crushing the hops sufficient to impart an undesirable bitterness to the Wort. Accordingly, an important feature embodied in the construction of a hop strainer according to the teachings of our invention is that of cascading the wort and hops in a sheet or sheets against a perforated plate or screen in such a manner that the combined wort and hops contact the plate or screen in such a way that the great majority of the wort will strike through the plate or screen instantly while the hops are washed along the plate or screen without driving the hops lint and seed through the plate or screen and without undue splashing.

Another very important object of our invention is to provide means for moving the hops and wort along another’ perforated plate or plates in such a Way as to accomplish further separation of the wort from the hops again without subjecting the hops to extreme pressures or harsh treatment.

A further object of our invention is to provide a final pressing action by means of which the last usable wort lis separated from the hops at the final stage in the separation process, this also being accomplished without damage to the hops and wort.

Another important object of our invention is to provide a hop strainer which may be .cleaned easily and quickly so as to protect the purity of the brew and make it economical to use.