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US4055673A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of moistening whole grains

Assignee: Buehler AG
•
Filing: 1976-01-14
•
Granted: 1977-10-25
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Expires: 1996-01-14
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Abstract

Abstract Whole grain kernels are admitted through an inlet at one end of a closed tubular vessel, and are entrained by a blade-type rotor in the presence of metered quantities of liquid, being accelerated so that they form in the vessel a whirling tubular veil which continuously travels lengthwise of the vessel towards an outlet thereof and wherein each kernel becomes uniformly wetted over its entire surface and moistened to a predetermined value.

Inventors

  • 👤 Roman Mueller
  • 👤 Josef Kalapos

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 18:38
CPC Classifications
A; A01; A01K; A01K5/00; A01K5/001; A01K5/002; B; B02; B02B; B02B1/00; B02B1/04; B02B1/06; Y; Y10; Y10S; Y10S366/00; Y10S366/603

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 257 words
A method of uniformly moistening whole grain kernels to a predetermined uniform moisture content in preparation for milling, comprising the steps of: a. admitting whole grain kernels through an inlet at one end of a closed, circular vessel having an inner circumferential wall; b. admitting metered quantities of water into contact with said grain kernels in the region of said vessel inlet; c. accelerating the admitted grain kernels circumferentially within the vessel and creating a whirling tubular veil of generally freely moving grain kernels in the vicinity of the inner circumferential wall of the vessel that moves substantially continuously lengthwise of the vessel, through the use of a rotor that extends axially within the vessel, the rotor having a plurality of individual blades projecting transversely of the rotor axis and having free outer ends, said blades being spaced over substantially the entire length of the rotor and generally uniformly spaced around its circumference, the blades numbering at least twenty blades for every square meter of surface area of said inner circumferential wall, and the rotor being made to rotate at a speed requisite for imparting to the outer ends of the blades a circumferential velocity of between substantially six meters per second and thirty meters per second, whereby said whole grain kernels are impacted within the whirling tubular veil by the rotating blades and caused to frictionally engage each other, thereby effecting uniform moistening of the grain kernels; d. and removing and uniformly moistened whole grain kernels through an outlet at the other end of the vessel.
Claim 2
Independent Claim 257 words
A method of uniformly moistening whole grain kernels to a predetermined uniform moisture content in preparation for milling, comprising the steps of: a. admitting whole grain kernels through an inlet at one end of a closed, circular vessel having an inner circumferential wall; b. admitting metered quantities of water into contact with said grain kernels in the region of said vessel inlet; c. accelerating the admitted grain kernels circumferentially within the vessel and creating a whirling tubular veil of generally freely moving grain kernels in the vicinity of the inner circumferential wall of the vessel that moves substantially continuously lengthwise of the vessel, through the use of a rotor that extends axially within the vessel, the rotor having a plurality of individual blades projecting transversely of the rotor axis and having free outer ends, said blades being spaced over substantially the entire length of the rotor and generally uniformly spaced around its circumference, the blades numbering at least twenty blades for every square meter of surface area of said inner circumferential wall, and the rotor being made to rotate at a speed requisite for imparting to the outer ends of the blades a circumferential velocity of between substantially six meters per second and thirty meters per second, whereby said whole grain kernels are impacted within the whirling tubular veil by the rotating blades and caused to frictionally engage each other, thereby effecting uniform moistening of the grain kernels; d. and removing and uniformly moistened whole grain kernels through an outlet at the other end of the vessel.
Claim 3
Dependent Claim 26 words
The method defined by claim 1, wherein water is metered to the admitted grain kernels in an amount of about 0.1-5% by weight of the kernels.
Claim 4
Dependent Claim 15 words
The method defined by claim 1, wherein the admitted water takes the form of steam.
Claim 5
Dependent Claim 37 words
The method defined by claim 1, wherein the moisture content of the grain kernels is determined prior to admission to the vessel, and water is metered to the grain kernels as a function of said moisture content.
Claim 6
Dependent Claim 35 words
The method defined by claim 1, wherein the moisture content of the grain kernels is determined after leaving the vessel, and water is metered to the grain kernels as a function of said moisture content.
Claim 7
Dependent Claim 14 words
The method defined by claim 1, wherein the vessel diameter is about 250-600 mm.
Claim 8
Dependent Claim 14 words
The method defined by claim 1, wherein the vessel diameter is about 300 mm.
Claim 9
Dependent Claim 14 words
The method defined by claim 7, wherein the vessel length is about 2 m.
Claim 10
Dependent Claim 39 words
The method defined by claim 1, wherein the rotor is rotated at a speed requisite for imparting to the other ends of the blades a circumferential velocity of between substantially 20 m. per second and 25 m. per second.
Claim 11
Dependent Claim 18 words
The method defined by claim 1, wherein the inner circumferential wall of the vessel is smooth and impermeable.
Claim 12
Dependent Claim 36 words
The method defined by claim 1, wherein the vessel inlet and outlet are tangentially oriented relative to the circumferential wall and arranged to receive and discharge grain kernels in the direction in which the rotor rotates.
Claim 13
Dependent Claim 28 words
The method defined by claim 1, wherein the axis of the rotor and vessel is inclined relative to horizontal, with the inlet end higher than the outlet end.
Claim 14
Dependent Claim 32 words
The method defined by claim 1, wherein the rate of admitting grain kernels to the vessel is substantially constant, and the dwell time of the kernels in the housing is substantially constant.

References Cited (Backward Citations)

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US1679099A Cited
US1920107A Cited
US1725279A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-10-24 1981-04-25 1981-10-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-10-24 1985-04-25 1985-10-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-10-24 1989-04-25 1989-10-25 $7700.00 Window Closed / Lapsed

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