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Publication numberUS2295529 A
Publication typeGrant
Publication dateSep 15, 1942
Filing dateDec 31, 1940
Priority dateDec 31, 1940
Publication numberUS 2295529 A, US 2295529A, US-A-2295529, US2295529 A, US2295529A
InventorsGooden Ernest L
Original AssigneeClaude R Wickard
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Device for compacting powders
US 2295529 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

Sept. 15, 1942. E. 1.. GOODEN DEVICE FOR COMPACTING POWDERS Filed Dec. 31, 1940 ERNEST L.GOODEN Bnnentor Gttomeg Fig. 1, is a plunger consis Patented Sept. 15, 1942 teasers PATENT orrlcs DEVICE FOR COMPACTING POWDEBS Ernest L. Gooden, Washington, D. 0., assignor to Claude R. Wickard, as Secretary of Agricul ture of the United States successors in oflice Application December 31, 1940,

1 Claim. (01. 226- 1) of America,v and his s rial No. erases (Granted under the act of March s, 1883, as

amended April 39, 1928; 370 0. G. 757) This application is made under the act of March 3, 1883, as amended by the act of April 30, 1928, and the invention herein described and claimed, it patented, may be manufactured and used by or for the Government of the United States of America for governmental purposes without the payment to me of any royalty thereon.

Methods of compaction commonly used for granular materials involve either (1) settling by vibration, or (2) compaction of the whole mass at once by the use of pressure, or a'combination of (1) and (2).

The essential idea underlying the present invention is the provision of a means that is more 7 eiilcient than any of the above, with special re-' gard to such very fine powders as aredi'fllcult or impossible to compact by vibration and with special regard'to the production of such relatively tall columns of compacted materials as are impossible or diflicult to produce with uniform porosity throughout the column height by the use of a single application ofvertical pressure. The compactor invented by me builds up within a vertical tubular containera column of compacted 25- powder of any desired \height, the compacting process proceeding from bottom to top'concurrently with the deposition of the material.

' In the accompanying drawingJlgr lis Mongi tudinal section of an assembly consisting of the 80 compacting device, the sample tube withinwhich the powder is to be compacted, and a vfunnel attached to the sample tube for ease of loading.

Fig. 2 is a sectional projection of the same assembly viewed as indicated by the arrows 2, 2 in 85 Fig. 1. Similar numerals refer to similar throughout the views.

The compactor, as shown the accompanying g of two parts-a rod or stem l and a foot The rod, which approprlately may be oft a piece of stifl. wire between one and two millimeters in diameter, has kinks distributed practically throughout its length, except a space of several centimeters near the top reserved as a handle I. On the bottom end'of parts 45 the rod is impaled or attached the foot 2, shown' I other suitable material, in the general shape of a solid right clrcularcone irustum with a portion (less than half) cut away on one side. The

' bottom of the foot (before removal of the segment) must fit smoothly inside the tubular container in which the column of compacted material isto be formed. which it may bedesired to form a column of compacted powder is a sample tube 4 for air permeation experiments, with a porous plug 5 serving as a support for the powder.

In use, the compactor is stood up in the empty tube, to the top of which a loading funnel 6 may. be closely connected by ashort piece of rubber tubing I. The powder is poured in on top oi the compactor foot. Then the plunger is alternately 4 raised and lowered in short strokes and mean- 20 past. the fact, which packs the bed as fast asit'is formed. The kinks in the stem assistin feeding the powder and guard against 010881118. The rotating motion serves. both to increase the effectiveness oi the kinks andto prevent com-, pactionaLinequality due to the failure of the foot to cover the whole cross section of thetube.

when the bulk of the material has been packed any powder 'he it clinging to the wall of the tube. 1'

Having thus described my'invention, what I claim for Letter Patent is:

A'device for compactingpowdered materials, comprising. a stemami an attached foot, the stem provided with kinks to assist in feeding the material, and the foot in the general shape of a solid right circular cone frustum with a segment uncompacted material, the basal diameter of V, the foot being only slightly smaller than the inside diameter or the cylinder in which the material is to be compacted.


An example of a container in in place the' plunger-maybe used to scrape down cut away on one side to form a passage for the

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4061164 *Oct 7, 1976Dec 6, 1977Shionogi & Co., Ltd.Powder filling machine
US5247970 *Mar 4, 1992Sep 28, 1993Norsk Hydro A.S.Method for filling particulate material into tubes
US7712490Mar 16, 2006May 11, 2010Clean Harbors Catalyst Technologies, LlcMethod and apparatus for loading catalyst
US7770613Apr 21, 2004Aug 10, 2010Clean Harbors Catalyst Technologies, LlcMethod and apparatus for loading catalyst
US20070084519 *Apr 21, 2004Apr 19, 2007Stephen BrennomMethod and apparatus for loading catalyst
US20070215236 *Mar 16, 2006Sep 20, 2007Cat Tech, Inc.Method and apparatus for loading catalyst
U.S. Classification141/73, 141/258, 141/366, 141/256, 141/327, 141/331
International ClassificationB65B1/24, B65B1/22, B65B1/00
Cooperative ClassificationB65B1/22, B65B1/24
European ClassificationB65B1/22, B65B1/24