EP0037955B1 - Vortexer - Google Patents
Vortexer Download PDFInfo
- Publication number
- EP0037955B1 EP0037955B1 EP81102413A EP81102413A EP0037955B1 EP 0037955 B1 EP0037955 B1 EP 0037955B1 EP 81102413 A EP81102413 A EP 81102413A EP 81102413 A EP81102413 A EP 81102413A EP 0037955 B1 EP0037955 B1 EP 0037955B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- base
- support
- spline
- torque arm
- splines
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/20—Mixing the contents of independent containers, e.g. test tubes
- B01F31/22—Mixing the contents of independent containers, e.g. test tubes with supporting means moving in a horizontal plane, e.g. describing an orbital path for moving the containers about an axis which intersects the receptacle axis at an angle
Definitions
- the present invention relates generally to apparatus for producing a vortex and to the mixing of liquids contained in laboratory vessels such as test tubes.
- a vortexer apparatus having a base, a motor mounted to said base, an agitated platform resiliently supported from said base and connected to said motor by an eccentric crank, a hold down plate, an upright cylindrical support mounted to said base, and means for detachably and selectively mounting said hold down plate, characterized by said support having a pair of splines formed thereon, the end of one spline being spaced from the near end of the other spline by a circumferential groove; said means for detachably mounting said hold down plate to said support including an elongate sleeve axially engageable with said support and having a key engageable with said pair of splines and groove; and said pair of splines being formed in an axial misalignment relative to each other, a rotation of said plate and sleeve being necessary to move said key from an alignment with one spline to an alignment with the other spline.
- the vortexer apparatus generally comprises a base 10, a motor 11 mounted to said base, an agitated platform 12 resiliently supported from the base and connected to motor 11 by an eccentric crank and coupling 13. Agitated platform 12 is resiliently supported upon a set of four wires 14, the lower end of each wire being secured in a holder 15 mounted to base 10.
- a housing 16 essentially encloses motor 11, wire 14 and the operating circuitry of the vortexer. This arrangement of apparatus is essentially known and is utilized in connection with other forms of vortexer apparatus.
- the present arrangement has improved means for mounting a hold down plate 20 relative to agitated plate 12 and base 10.
- a cylindrical support or support spindle 21 secured to base 10 by a screw 22, and maintained upright by housing 16.
- a torque arm 23 is fitted to the lower portion of support spindle 21, and made a part thereof either with a force fit or by welding, and the torque arm is secured to the housing 16 by a set screw 24.
- Torque arm 23 is provided with a slot 23a which allows the torque arm to be angularly pivoted relative to the base through small angles of adjustment and then secured by a set screw 24 when properly located.
- Slight angular adjustments of the torque arm and support spindle 21 are made by an eccentric 25 threadably received in housing 16.
- the upper end of eccentric 25 carries a pin 25a, said pin being offset relative to the axis of threading and received in an opening 23b of the torque arm. This arrangement is best shown in Fig. 7.
- the angular orientation of support spindle 21 is of importance in locating the hold down plate 20 directly above agitated platform 12.
- the mechanism provided for angularly positioning spindle 21 allows this to be done quite easily at the time of assembly, notwithstanding a manufacture of parts which may vary slightly in size and be built to loose tolerances.
- Support spindle 21 is formed with a pair of splines 21 a and 21 b, the lower end of upper spline 21 a being spaced from the upper end of lower spline 21 b by a circumferential groove 21 c. It will be further noted that the pair of splines 21 a and 21 are formed on opposite sides of support 21 in an axial misalignment relative to each other.
- Plate 20 is adapted to be mounted to and supported from spindle 21 through an elongate sleeve 26, the internal diameter of sleeve 26 being only slightly greater than the outer diameter of support spindle 21.
- a key 27 is secured to sleeve 26, said key being engageable with either of said pair of splines 21 a or 21 b, or groove 21 c, when properly aligned therewith.
- key 27 is engaged with spline 21 b, and in that position allows hold down plate 20 to be lowered upon a set of laboratory test tubes T supported in a rack R.
- the weight of plate 20 may be sufficient to hold the upper ends of each tube T in a relatively fixed or steady position, the hold down pressure may be increased.
- a set screw 28 is provided to secure sleeve 26 at a set position along support spindle 21.
- hand pressure is applied ot the top of plate 20 with set screw 28 backed off.
- set screw 28 is then threaded into engagement with the surface of spindle 21.
- indentations may be formed along spindle 21 to receive the end of the set screw in various "set" positions.
- Fig. 1 illustrates in broken line a position for hold down plate 20 allowing removal of rack R and test tubes T. This position is attained simply by backing off set screw 28, lifting plate 20 until key 27 extends beyond spline 21 b and becomes aligned with groove 21 c, and then rotating plate 20. Key 27 will then track within groove 21 c supporting plate 20 at that position.
- plate 20 and sleeve 26 may be removed entirely from spindle 21 by simply rotating plate 20 until key 27 becomes aligned with spline 21 a, then lifting the plate and sleeve 26 axially from the spindle support.
- Figs. 2, 3 and 4 illustrate various types of racks and vessels which may be utilized in connection with the vortexer. Such racks and vessels are commonly known and used in connection with other vortexers.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sampling And Sample Adjustment (AREA)
- Devices For Use In Laboratory Experiments (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
- The present invention relates generally to apparatus for producing a vortex and to the mixing of liquids contained in laboratory vessels such as test tubes.
- Known arrangements can be seen in GB-A-1,240,592 and GB-A-931,263.
- According to the present invention there is provided a vortexer apparatus having a base, a motor mounted to said base, an agitated platform resiliently supported from said base and connected to said motor by an eccentric crank, a hold down plate, an upright cylindrical support mounted to said base, and means for detachably and selectively mounting said hold down plate, characterized by said support having a pair of splines formed thereon, the end of one spline being spaced from the near end of the other spline by a circumferential groove; said means for detachably mounting said hold down plate to said support including an elongate sleeve axially engageable with said support and having a key engageable with said pair of splines and groove; and said pair of splines being formed in an axial misalignment relative to each other, a rotation of said plate and sleeve being necessary to move said key from an alignment with one spline to an alignment with the other spline.
- A fuller understanding of the invention, its objects and features will become apparent from the following detailed description of an embodiment thereof.
- In the drawings forming a part of this application and in which like parts are identified by like reference numerals,
- Fig. 1 is a perspective view of a preferred embodiment of the invention in a vortexer apparatus;
- Figs. 2, 3 and 4 illustrate various sizes of laboratory vessels and holders which may be used with the vortexer apparatus;
- Fig. 5 is an elevation of the vortexer viewed on line 5-5 of Fig. 1;
- Fig. 6 is an elevation of the vortexer viewed on line 6-6 of Fig. 1;
- Fig. 7 is a plan view and partial section taken on line 7-7 of Fig. 6; and
- Referring to Figs. 1, 5 and 6 in particular, the vortexer apparatus generally comprises a
base 10, a motor 11 mounted to said base, anagitated platform 12 resiliently supported from the base and connected to motor 11 by an eccentric crank andcoupling 13. Agitatedplatform 12 is resiliently supported upon a set of fourwires 14, the lower end of each wire being secured in aholder 15 mounted tobase 10. Ahousing 16 essentially encloses motor 11,wire 14 and the operating circuitry of the vortexer. This arrangement of apparatus is essentially known and is utilized in connection with other forms of vortexer apparatus. - The present arrangement has improved means for mounting a hold down
plate 20 relative toagitated plate 12 andbase 10. For this purpose there is provided a cylindrical support orsupport spindle 21, secured tobase 10 by ascrew 22, and maintained upright byhousing 16. Atorque arm 23 is fitted to the lower portion ofsupport spindle 21, and made a part thereof either with a force fit or by welding, and the torque arm is secured to thehousing 16 by aset screw 24.Torque arm 23 is provided with aslot 23a which allows the torque arm to be angularly pivoted relative to the base through small angles of adjustment and then secured by aset screw 24 when properly located. Slight angular adjustments of the torque arm andsupport spindle 21 are made by an eccentric 25 threadably received inhousing 16. The upper end of eccentric 25 carries a pin 25a, said pin being offset relative to the axis of threading and received in an opening 23b of the torque arm. This arrangement is best shown in Fig. 7. - The angular orientation of
support spindle 21 is of importance in locating the hold downplate 20 directly aboveagitated platform 12. The mechanism provided for angularly positioningspindle 21 allows this to be done quite easily at the time of assembly, notwithstanding a manufacture of parts which may vary slightly in size and be built to loose tolerances. -
Support spindle 21 is formed with a pair ofsplines upper spline 21 a being spaced from the upper end oflower spline 21 b by acircumferential groove 21 c. It will be further noted that the pair ofsplines support 21 in an axial misalignment relative to each other. -
Plate 20 is adapted to be mounted to and supported fromspindle 21 through anelongate sleeve 26, the internal diameter ofsleeve 26 being only slightly greater than the outer diameter ofsupport spindle 21. Akey 27 is secured to sleeve 26, said key being engageable with either of said pair ofsplines groove 21 c, when properly aligned therewith. In the position shown in Figs. 5 and 6,key 27 is engaged withspline 21 b, and in that position allows hold downplate 20 to be lowered upon a set of laboratory test tubes T supported in a rack R. Although the weight ofplate 20 may be sufficient to hold the upper ends of each tube T in a relatively fixed or steady position, the hold down pressure may be increased. For this purpose a set screw 28 is provided to securesleeve 26 at a set position alongsupport spindle 21. To increase the pressure above that provided by the weight ofplate 20 alone, hand pressure is applied ot the top ofplate 20 with set screw 28 backed off. With the desired or necessary pressure applied, set screw 28 is then threaded into engagement with the surface ofspindle 21. If desired, indentations may be formed alongspindle 21 to receive the end of the set screw in various "set" positions. - Fig. 1 illustrates in broken line a position for hold down
plate 20 allowing removal of rack R and test tubes T. This position is attained simply by backing off set screw 28, liftingplate 20 untilkey 27 extends beyondspline 21 b and becomes aligned withgroove 21 c, and then rotatingplate 20. Key 27 will then track withingroove 21c supporting plate 20 at that position. - It will be further seen that
plate 20 andsleeve 26 may be removed entirely fromspindle 21 by simply rotatingplate 20 untilkey 27 becomes aligned withspline 21 a, then lifting the plate and sleeve 26 axially from the spindle support. - Figs. 2, 3 and 4 illustrate various types of racks and vessels which may be utilized in connection with the vortexer. Such racks and vessels are commonly known and used in connection with other vortexers.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT81102413T ATE6130T1 (en) | 1980-04-08 | 1981-03-31 | MIXING DEVICE. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13841780A | 1980-04-08 | 1980-04-08 | |
US138417 | 1980-04-08 | ||
US138416 | 1980-04-08 | ||
US06/138,416 US4305668A (en) | 1980-04-08 | 1980-04-08 | Vortexer |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0037955A2 EP0037955A2 (en) | 1981-10-21 |
EP0037955A3 EP0037955A3 (en) | 1982-01-20 |
EP0037955B1 true EP0037955B1 (en) | 1984-02-08 |
Family
ID=26836179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP81102413A Expired EP0037955B1 (en) | 1980-04-08 | 1981-03-31 | Vortexer |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0037955B1 (en) |
DE (1) | DE3162153D1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT397042B (en) * | 1991-11-26 | 1994-01-25 | Seidl Gerald | Elution apparatus |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2566908B1 (en) * | 1984-06-27 | 1986-07-18 | Girolami Antoine | COAGULOMETER AND METHOD FOR MEASURING THE COAGULATION TIME OF SAMPLES OF FLUID PRODUCTS |
GB8918779D0 (en) * | 1989-08-17 | 1989-09-27 | Univ Leicester | Shaking table |
GB9008827D0 (en) * | 1990-04-19 | 1990-06-13 | Fisons Plc | Device |
DE4442262C2 (en) * | 1994-11-28 | 1999-06-24 | Kaltenbach & Voigt | Vibrating table for a laboratory, especially for a medical or dental laboratory |
DE102004021665B4 (en) * | 2004-05-03 | 2006-06-14 | H+P Labortechnik Ag | Shaker for sample vessels and method for shaking sample vessels |
WO2023165715A1 (en) * | 2022-03-04 | 2023-09-07 | Infors Ag | Device for agitating samples |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1724759A (en) * | 1927-08-29 | 1929-08-13 | Gravel Oneil | Latch |
DE831773C (en) * | 1950-12-16 | 1952-02-18 | Hans Skodock Spezialfabrik Fue | Tripod for cameras |
FR1068430A (en) * | 1952-12-19 | 1954-06-24 | Safety lock | |
GB931263A (en) * | 1961-12-27 | 1963-07-17 | Scientific Industries | Improvements in or relating to apparatus for mixing fluent material |
BE626210A (en) * | 1962-01-23 | 1963-01-15 | Vehicle wheel suspension arm assembly | |
FR1320156A (en) * | 1962-01-25 | 1963-03-08 | Device for the automatic operation of movable shutters | |
GB1240592A (en) * | 1969-03-24 | 1971-07-28 | Endecotts Test Sieves Ltd | Improved mechanical vibrator apparatus |
US3591303A (en) * | 1969-04-02 | 1971-07-06 | Fred T Conway | Apparatus for positioning piano hammers for drilling |
-
1981
- 1981-03-31 EP EP81102413A patent/EP0037955B1/en not_active Expired
- 1981-03-31 DE DE8181102413T patent/DE3162153D1/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT397042B (en) * | 1991-11-26 | 1994-01-25 | Seidl Gerald | Elution apparatus |
Also Published As
Publication number | Publication date |
---|---|
EP0037955A3 (en) | 1982-01-20 |
DE3162153D1 (en) | 1984-03-15 |
EP0037955A2 (en) | 1981-10-21 |
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