Multiple-sample segmented sampling device and method of use

• US 5,440,941 A
• Filed: 05/06/1994
• Issued: 08/15/1995
• Est. Priority Date: 06/02/1993
• Status: Expired due to Term

• Current Assignee: Kalidindi, Sanyasi R.
• Original Assignee: Kalidindi, Sanyasi R.
• Inventors: Kalidindi, Sanyasi R.
• Primary Examiner(s): RAEVIS, ROBERT R
• Application Number:
  US08/239,420
• Time in Patent Office: 466 Days
• Field of Search: 73/864.63-864.67, 73/863.31
• US Class Current: 73/864.64
• CPC Class Codes: G01N 1/08 involving an extracting tool, e.g. core bit
• CPC Class Codes: G01N 1/16 with provision for intake at several levels G01N1/2035 G01N1/12, G01N1/14 take precedence
• CPC Class Codes: G01N 2001/2071 Removable sample bottle

Abstract

A multiple-sample sampling and measuring device which may be extended and a method of using the device. Dies defining sampling cavities of varying volumes nest within receiving rod segments which, in turn, nest in tubular casing segments. The casing segments have aligned apertures corresponding to preferred die locations. These casing segments are series connected, and the device is dipped into the mixture being sampled. Various die arrangements are disclosed. The distal end of the device has a solid cone and the proximate end of the device has a handle to rotate the connected receiving rod and dies to obtain accurate volumetric sampling of pharmaceutical powders, foods, ointments, cosmetic creams and the like.

Claims

1. A multiple-sample sampling device capable of extension for taking multiple samples having accurate volumes from the same area and at different depths of powder or semi-solid mixtures, comprising:

at least a first tubular casing segment and a second tubular casing segment of predetermined lengths, each said first tubular casing segment and said second tubular casing segment having means defining at least one aperture, said first tubular casing segment having a first engaging means at its distal end and a second engaging means at its proximate end, said second tubular casing segment having cooperating engaging means at its distal end for connection to said second engaging means and a grooved pattern at its proximate end;

at least a first die receiving rod segment and a second die receiving rod segment of predetermined lengths, said first die receiving rod segment and said second die receiving rod segment fitting snugly inside said first tubular casing segment and said second tubular casing segment, respectively, said first die receiving rod segment having a third engaging means at its proximate end, said second die receiving rod segment having cooperating engaging means at its distal end for connection to said third engaging means and a handle and pin at its proximate end;

each said first die receiving rod segment and said second die receiving rod segment having means defining at least one first cavity which is aligned with and of greater dimensions than said at least one aperture formed in each of said first tubular casing segment and second tubular casing segment;

at least one die fitting smugly in said at least one first cavity and having at least one second sampling cavity of predetermined sampling volume; and

a solid cone having a fifth engaging means at its proximate end which engages with said first engaging means and closes the distal end of said first tubular casing segment;

whereby

said second die receiving rod segment of the sampling device having the handle and pin at its proximate end enables the rotation of said first receiving rod segment and said second receiving rod segment and guides the pin with respect to said grooved pattern of said second tubular casing, thereby aligning and misaligning said at least one die with said at least one aperture in said first tubular casing and said second tubular casing to provide for sampling and discontinuing sampling.

2. The multiple-sample sampling device according to claim 1, wherein said first die receiving rod segment and said second die receiving rod segment are solid.

3. The multiple-sample sampling device according to claim 1, wherein said first die receiving rod segment and said second die receiving rod segment are hollow.

4. The multiple-sample sampling device according to claim 3, further including at least one die-holder which accommodates multiple dies arranged circumferentially.

5. The multiple-sample sampling device according to claim 3, further including at least one die-holder which accommodates a rectangular arrangement of multiple dies.

6. The multiple-sample sampling device according to claim 1, wherein said first receiving rod segment includes two dies arranged longitudinally in said at least one first cavity, said two dies being exposed sequentially by said at least one aperture in said first tubular casing segment.

7. The multiple-sample sampling device according to claim 1, wherein said at least one second sampling cavity includes two said sampling cavities oriented at 180 degrees to each other.

8. The multiple-sample sampling device according to claim 1, comprising at least one spring provided for at least one die, contacting a bottom surface thereof, and urging said die against said at least one tubular casing.

9. The multiple-sample sampling device according to claim 1, comprising at least one blank die to block at least one said sampling aperture.

10. The multiple-sampling device according to claim 1, wherein said third engaging means of said first die receiving rod segment and said cooperating engaging means of said second die receiving rod segment comprise at least one socket connection.

11. The multiple-sample sampling device according to claim 1, wherein said second engaging means of said first tubular casing segment and said cooperating engaging means of said second tubular casing segment comprise key and slot connections secured by a union nut.

12. A method of sampling either a blended pharmaceutical, food or cosmetic mixture in either powder or emulsion form by the use of a segmented sampling device, comprising:

positioning into said blended pharmaceutical, food or cosmetic mixture in either powder or emulsion form, a first sampling device segment comprising a first tubular casing segment closed at its distal end, including aligned apertures from said distal end to a proximate end, and containing dies providing cavities of varying sampling volumes situated in a first receiving rod segment aligned to correspond with said apertures but initially offset to prevent sampling;

inserting at least one second die receiving rod segment containing dies providing cavities of varying sampling volumes into a second tubular casing by coupling with said first rod segment, said second rod segment containing dies aligned with said dies in said first die receiving rod segment, and inserting said second sampling segment further into said powder or emulsion;

attaching a handle to the last sampling segment'"'"'s die receiving rod, turning the handle to rotate said coupled die receiving rods, to expose said dies providing cavities of varying volumes to said pharmaceutical, food or cosmetic mixture in either powder or emulsion form, and taking precise sample volumes of said powder or emulsion into each die; and

turning the handle to rotate the connected die receiving rod segments to close off the apertures in said tubular casing segments.

13. The method of claim 12, comprising the use of solid die receiving rod segments.

14. The method of claim 12, comprising the use of hollow die receiving rod segments.

15. The method of claim 12, comprising the step of placing two dies in communication with at least one aperture and sampling in sequence.

16. The method of claim 13, further comprising the step of providing at least one die with separate sampling cavities located 180 degrees offset from one another, and positioned to take samples in sequence at the same depth.

17. The method of claim 12, further comprising the step of placing at least one blank die lacking sample taking cavities in at least one sampling cavity of said die receiving rod segments to block at least one aperture.

18. The method of claim 12, further comprising the step of grouping together four sampling dies in a rectangular formation in one cavity of the die receiving rod and filling each sampling cavity in sequence.

19. The method of claim 12, further comprising the step of providing within a hollow die receiving rod, at least one die holder which contains at least 3 sampling dies, each die having a sampling cavity, locating said 3 dies circumferentially and equidistantly from one end of the hollow die receiving rod, and filling each sampling cavity in sequence.