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Publication numberUS2292450 A
Publication typeGrant
Publication dateAug 11, 1942
Filing dateAug 29, 1941
Priority dateAug 29, 1941
Publication numberUS 2292450 A, US 2292450A, US-A-2292450, US2292450 A, US2292450A
InventorsMilton Kohn
Original AssigneeMilton Kohn
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Sediment test record card
US 2292450 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Aug. 11, 1942. 'M. KOHN 2,292,450

SEDIMENT TEST RECORD CARD Filed Aug 29, 1941 N0 No Date Date [I Clean El Excellent ElClean UExceHent E] Fairly Clean [I G004 ElFairl Clean EIGood mm, [:1 Fair DDirty DFair ElVeryDirt U Illegal DVer- Dirty DIIIegaI El lst Grade ElZhd Grade SELF-SEAL" TEST CARD Ellst Grade 52nd Grade E-Z LOCK SEDIMENT TESTCARII "SELF-SEAL TEST CARD Patented Aug. 11, 1942 UNITED STATES PATENT OFFICE SEDIMENT TEST RECORD CARD Milton Kohn, Chicago, Ill. Application August 29, 1941, Serial No. 408,777

5 Claims.

My invention relates to sediment test record cards.

. One of the objects of my invention is to provide a sediment test record card having a slight opening through which the filter disc is visible, which will facilitate the application of the filter disc to the card.

A further object is toprovide a sediment test record card in which the upper flap of the card may be readily and easily folded down on top of the filter disc and rear flap and secured in place.

Further objects and advantages of the invention will be apparent from the description and claims.

Specifically, my invention is exemplified by a sediment test record card having a sight opening or window covered with Cellophane, glassine,

or other like transparent material, bene'ath which a filter disc exhibiting the results of a test such as a cream or butter test, or a milk test for sediment, mold, or the like, may be displayed and indefinitely preserved.

In the drawing, in which two embodiments of my invention are shown,

Figure 1 is a plan view of a card before the filter disc is applied thereto;

Fig. 2 is a plan view showing the card folded and the filter disc visible through the sight open- Fig. 3 is a section on the line 3-3 of Fig. 2; Fig. 4 is a plan view showing another form of card before the filter disc is in place;

Fig. 5 is a plan view showing the card folded and sealed;

Fig. 6 is a section on the line 6-5 of Fig. 5; and

Fig. '7 is a plan view of the filter disc.

Referring to the drawing in detail, and first to Figs. 1, 2, 3, and 7, the construction shown therein comprises a flat card I, including a rear leaf 2 and a front leaf 3 foldable down onto the rear leaf about a weakened line 4, and a filter disc 5 to be secured to the rear leaf 2 and covered by the front leaf when folded down. The rear leaf is provided with locating indicia 6 for the filter disc 5, such as a printed circle slightly greater in diameter than the diameter of the filter disc and of approximately the same diameter as the diameter of in the front flap. The front flap is provided with a window 8 of thin transparent material secured to the inner face of a front leaf. The rear leaf is provided with a tongue 9 struck up therefrom underneath which the upper edge of the the sight opening 1 front 55 flap may be inserted after the filter disc is secured to the rear leaf, as shown in Figs. 2 and 3. The card may be provided with suitable indicia III in regard to placing the disc and in regard to inserting the edge of the front flap under the lock of the rear flap. It may also be provided with indicia II for indicating the grade of the liquid tests as indicated by the sediment caught by the filter disc.

The construction shown in Figs. 4, 5, and 6 is substantially the same as that shown in Figs. 1, 2, and 3, except that here the front leaf 3 of the card is secured to the rear leaf after the filter disc is in place by means of cooperating adhesives l2 placed near the edges of the leaves.

In making the test, the liquid, such as milk, cream, or the like, is strained through the filter disc 5 and the filter disc is then applied to the card properly by the aid of the positioning ring 6 on the rear flap 2. A nainsook filter may be used for cream; a lintine filter for milk, and an organdy filter may be used for separating mold from cream. The filter disc become soft and adhesive when wet and will adhere readily to the card. The front leaf 3 is then folded down over the rear leaf and over the filter disc, the sight opening I and window registering with the positioning indicia 6 on the rear card and the filter disc 5 being completely visible through the window. The card is then marked to indicate the grade and sent to the supplier of the liquid, thus showing the supplier the filter disc indicating the grade of the liquid tested.

Further modification will be apparent to those skilled in the art and it is desired, therefore, that the invention be limited only by the scope of the appended claims. I

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

l. A sediment testing device comprising a card having a rear leaf and a front leaf having a hinge connection with the rear leaf to enable it to be folded down on the rear leaf, said front leaf having a sight opening having visible boundary locating indicia flush with the surface of the leaf for determining the placement of the filter disc on the rear leaf, a filter disc secured by adhesion of the filtered material to the front face of the rear leaf with its periphery substantially coinciding with said boundary indicia, and a transparent window secured to the front leaf and extending across said opening through which window the filter disc is visible, said rear leaf having a tongue struck up therein, said rear leaf therefrom under which the upper edge of the front leaf is inserted.

2. A sediment testing device comprising a card having a rear leaf and a front leaf having a hinge connection with the rear leaf to enable it to be folded down on the rear leaf, said front leaf having a sight opening therein, said rear leaf having visible boundary locating indicia flush with the surface of the leaf for determining the placement of the filter disc on the rear leaf, a filter disc secured by adhesion of the filtered material to the front face of the rear leaf with its periphery substantially coinciding with said boundary indicia, and a transparent window secured to the front leaf and extending across said opening through which window the filter disc is visible, said rear leaf having a tongue struck up therefrom under which the upper edge of the front leaf is inserted, said transparent window comprising a sheet secured to the rear face of the front leaf.

3. A sediment testing device comprising a card having a rear leaf and a front leaf having a hinge connection with the rear leaf to enable it to be folded down on the rear leaf, said front leaf having a sight opening therein, said rear leaf having visible boundary locating indicia flush with the surface of the leaf for determining the placement of the filter disc on the rear' leaf, a filter disc secured by adhesion of the filtered material to the front face of the rear leaf with its periphery substantially coinciding with said boundary indicia, and a transparent window secured to the front leaf and extending across said opening through which window the filter disc is visible, said leaves being provided with an adhesive for scoring them together.

4. A sediment testing device comprising a card having a rear leaf and a front leaf having a hinge connection with the rear leaf to enable it to be folded down on the rear leaf, said front leaf having a sight opening therein, said rear leaf having visible boundary locating indicia flush with the surface of the leaf for determining the placement of the filter disc on the rear leaf, a filter disc secured by adhesion of the filtered material to the front face of the rear leaf with its periphery substantially coinciding with said boundary indicia, and a transparent window se-' cured to the front leaf and extending across said opening through which window the filter disc is visible, said leaves being provided wth means adjacent the swinging edge of the front leaf when closed for securing the leaves together.

5. A sediment testing device comprising a card having a rear leaf and a front leaf having a hinge connection with the rear leaf to enable it to be folded downon the rear leaf, said front leaf having a sight opening therein, said rear leaf having visible boundary locating indicia flush with the surface of the leaf for determining the placement of the filter disc on the rear leaf, a filter disc secured by adhesion of the filtered material to the front face of the rear leaf with its periphery substantially coinciding with said boundary indicia, and a transparent window secured to the front leaf and extending across said opening through which window the filter disc is visible.

MILTON KOHN.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2672431 *Nov 25, 1949Mar 16, 1954Goetz AlexanderMeans for performing microbiological assays of aerosols and hydrosols
US2672432 *Mar 23, 1951Mar 16, 1954Goetz AlexanderMeans for performing microbiological assays of aerosols and hydrosols
US3157280 *Oct 21, 1963Nov 17, 1964Perdue Co IncDisplay container
US3174621 *Apr 2, 1963Mar 23, 1965Paramount Paper Products CoLabel package
US4259964 *Jul 9, 1979Apr 7, 1981Levine Robert ADevice for obtaining stool samples
US4448303 *Mar 24, 1983May 15, 1984Ronald BeckenfeldPoint of sale display container
US4981805 *Dec 17, 1984Jan 1, 1991Fuji Photo Film Co., Ltd.Method of using chemical analysis slide
US5064766 *Oct 18, 1989Nov 12, 1991Wardlaw Stephen CMethod for differentiating the source of occult gastrointestinal bleeding
US5223405 *Sep 5, 1990Jun 29, 1993The Secretary Of State For ScotlandSampling by pressing between adsorbent and substrate surfaces
US5443080 *Dec 22, 1993Aug 22, 1995Americate Transtech, Inc.Integrated system for biological fluid constituent analysis
US5462064 *Mar 14, 1994Oct 31, 1995International Medical Associates, Inc.Integrated system for biological fluid constituent analysis
US5716831 *May 24, 1995Feb 10, 1998Board Of Trustees Operating Michigan State UniversityMethod and test kit for detecting insecticide resistance
WO1995024859A1 *Mar 14, 1995Sep 21, 1995Angelo Joseph P DIntegrated system for biological fluid constituent analysis
Classifications
U.S. Classification73/61.72, 600/573, 206/459.5, 435/30
International ClassificationG01N15/06
Cooperative ClassificationG01N15/0618
European ClassificationG01N15/06A3