Патент USA US3067026код для вставки
Dec. 4, 1962 3,067,016 l. R. ROZYCKI BACTERIOLOGICAL HANDLING APPARATUS Filed July 15, 1959 iJLJL] ["“I l l L_;! 25 .l-‘ _ _ ‘TUE [-\2 0a, 8 0 [re/7e R. Rozyc/(i ATTORNEY States atent ‘O " li?hzdih Patented Dec. ll, 1962 2 1 knurled gripping portion 12 whereby said collet may be 3,067,016 grasped to rotate it. The collet 9 operates in a conventional manner whereby when it is turned by the gripping portion 12 to move up BACTERIOLOGICAL HANDLING APPARATUS Irene R. Rozycki, 5712 Harvard Ave., Cleveland, Ohio Filed July 15, 1959, Ser. No. 827,990 2 Claims. (Cl. 23-259) wardly in the sleeve 4, the tapered ?ngers it} are wedgingly forced into the tapered seat 11 which causes them to be This invention relates to an adjustable support or rack cammed radially inwardly against the supporting column for holding bacteriological handling instruments such as 3 to ?rmly grip said column. To adjust the rack vertically, inoculating loops, needles, forceps, and tweezers during the operator loosens the collet 9, moves the sleeve 4 the sterilization thereof. Such instruments are commonly 10 to the desired height, and then retightens said collet. The used in a bacteriology laboratory, and the conventional upper end 4b of the sleeve 4 projects upwardly above the method of sterilizing them is to place the contaminated column 3 and is slightly ?attened in one dimension to ends thereof in the ?ames of ‘a Bunsen burner. Once the provide a non-circuit socket 13. instruments are sterilized, it is desirable that they be main The tray 5 is mounted, at the bottom surface thereof, tained in readiness for use in such manner as not to be come further contaminated by bacteria outside of the particular culture media to be handled. It is, therefore, a primary object of this invention to 15 upon one end of a short supporting arm 14. The arm 14 is secured to the tray 5 in any suitable manner such as by soldering, brazing, or welding. The downwardly directed endof the arm 14 is provided with a clevis 15 provide a rack for holding bacteriological handling in adapted to inter?t an upwardly projected pivot portion struments for purposes of sterilization and for ready and 20 16 of a stub shank 17 which is adapted to rernovably inter ?t the upper socket 13. The clevis l5 and the pivot por - Another object of this invention is to provide a rack tion 16 are adjustably pivotally secured together by means of the above type which is vertically adjustable and hori of an adjusting screw 18 which projects through suitable zontally tiltable whereby the instruments may be placed openings in said clevis and said pivot portion and is prefer in any desired position and at an optimum angle for 25 ably thread ?tted into one arm 15a of the clevis 15. projecting the contaminated ends thereof into the ?ame By loosening the screw 18, the rack 5 may be tilted to of the Bunsen burner. any desired angle about the pivot portion 16 of the re Yet‘ another object is to provide a device having the movable shank 17. Said tray may be readily removed above characteristics whereby the instruments are mov from the rack 1 if so desired by lifting the stub shank 17 convenient use. . . > able into and out of the burner ?ame without the neces sity of directly handling them. 30 out of the socket 13. In this way an entire tray of in struments may be removed from or placed on the rack 1. A further object of this invention is to provide such a rack upon which the instruments may be quickly and easily placed and removed and which will be safely and adequately held in readiness for immediate use by the laboratory technician. Further objects of this invention and the invention itself will become clear from the following description and the accompanying drawings, in which said drawings: The tray 5 is preferably manufactured from ?at sheet metal and comprises a ?at, rectangular plate 20 having upstanding wall portions 21 at two opposed edges there of, the upper end of said wall portion being right angularly bent toward each other whereby they are parallel to and spaced above the said plate 29 as indicated at 22. As best seen in FIGS. 2 and 3, the wall portions 21 are slotted as shown at 23, said slots extending downwardly FIG. 1 is a side elevation of the rack and an associated 40 to within a short distance of the plate 29. The slots in one of the walls 21 are longitudinally aligned with the Bunsen burner illustrating the use of the rack, said rack being shown partially in section; FIG. 2 is a plan view of the supporting tray of the rack as seen from the line 2-2 of FIG. 1; FIG. 3 is a section taken along the line 3——3 of FIG. 1; FIG. 4 is a section taken along the line 4—4 of FIG. 1; slots in the opposite said wall and extend upwardly through the bent portions 22. . As herein illustrated, the support rack of this invention is shown in association with a conventional Bunsen burner B of the type commonly used in laboratories. However, it will be understood that any suitable sterilizing means may be used. FIG. 5 is a fragmentary elevation similar to FIG. 1 The burner B comprises a ‘base 30‘ having an upstand showing a pair of forceps mounted in the tray. Referring now to the ?gures of the drawings in all 50 ing gas conduit 31 surmounted by a gas jet 32 positioned within an air opening 33. A burner table 34 extends up of which like parts are designated by like reference char wardly above the gas jet 32 and emits a sterilizing ?ame acters and particularly to FIG. 1, at 1 is shown the ad F into which the contaminated work ends of the handling justable rack which comprises a base 2, an upright column instruments are placed. 3, a vertically adjustable sleeve '4, and a tiltable tray 5. By means of said aligned slots 23 of the tray wall por As herein illustrated, the base 2 has a centrally disposed, tions 21, a bacteriological handling instrument, such as an vertically upstanding collar 6 projecting from the upper innoculating loop or a needle, is supported upon the tray surface thereof, said collar providing a socket 7 into and 5. The instrument, shown at 24, is placed with the shank which the supporting column 3 is slidably and rotatably 25 thereof in a pair of the aligned slots 23, the handle 26 ?tted. The sleeve 4 is slidably telescoped over the col umn 3 at the uppermost end thereof and is vertically 60 of said instrument being adjacent the outside surface of one of the walls 21. By tilting the rack 5 about the pivot slidable thereupon. The lowermost end 4a of the sleeve 16, the contaminated end or loop 27 of the instrument 4 is internally threaded as indicated at 8 and adapted to receive an externally threaded collet 9. The collet 9 can be directed at a convenient angle into a ?ame F of a conventional Bunsen burner B or other sterilizing device. is centrally, longitudinally bored at 9a to slidably ?t over 65 The handle 26 of the instrument 24, which is consider~ the column 3 whereby it is threaded into the sleeve 4. ably larger than the slot 23, prevents the said instrument The upwardly directed end of said collet is provided with a plurality of tapered, circumferentially evenly inter spaced ?ngers 10. The tapered ?ngers ~10 are adapted to wedgingly inter?t a complementarily tapered seat 11 in 70 from slipping out of its adjusted position. It will be understood that a plurality of such needle-like instruments the sleeve 4. The lowermost end of the collet 9 is pro may be simultaneously mounted upon the same tray V5 to be sterilized simultaneously. After the instruments are sterilized, if they are not to vided with a radially outwardly projecting, preferably be immediately used by the technician, they may be left 3,067,016 r." 4% a on the tray 5 and are removable from the ?ame of the justable thereon, said sleeve having a cylindrical lower portion adapted to receive said column and an upper axially offset cylindrical portion having an internal diam Bunsen burner merely by pivoting the support column 3 in the socket '7. The decontaminated work ends 27 are thus rotated away from the ?ame without the necessity of handling the instruments. eter greater than the internal diameter of said lower por tion, securing means associated with said sleeve for op tionally securing said sleeve to said column in any ver Referring again to FIG. 2, the plate 29 is provided with a longitudinal aperture '23 adjacent one edge thereof whereby instruments of other shapes, such as tweezers and forceps, may be placed on the tray 5. The said aper ture 23 may be used in various ways for various instru tically adjusted position, a tray for holding said instru ments, said tray comprising a flat, rectangular plate hav ing upwardly perpendicularly disposed walls adjacent to l0 opposite edges thereof, said walls having slots therein ments, examples of two such uses being shown in FIGS. disposed at right angles to said plate, the slot in one 3 and 5. said wall being so positioned relative to the slot in the In FIG. 3 there is shown in broken line a pair of other said wall as to nestingly receive a shank portion tweezers 4t) comprising a pair of parallel leg members of a bacteriological handling instrument simultaneously 41 and 42 which are integrally ‘joined at the uppermost 15 disposed in both said slots, said tray having an arm ex ends thereof as indicated at 43. The leg member 41 is tending downwardly therefrom, a cylindrical tube pivot threaded downwardly through the aperture 28 with the ably connected to said arm, said tube being rotatably leg member 42 being positioned outside the adjacent edge mounted at its lower end in said upper cylindrical por 29a of the plate 243. In this position, the tray 5 may be tion of said sleeve, whereby said tray may be vertically tilted to any desired angle to bring the lowermost work adjusted and tilted to any desired angle. end 44 of said tweezer into contact with the ?ame F of 2. An adjustable rack for bacteriological handling in the burner B. struments comprising a base, a vertically upstanding col When such instruments as tweezers are being sterilized, umn rotatably mounted in said base, a continuous sleeve it is, of course, necessary to tilt the tray 5 away from the slidably telescoped over said column and vertically ad burner thereby pivoting the work end 44 of said tweezer 25 justable thereon, said sleeve having a cylindrical lower upwardly to an optimum position for entering the ?ame portion adapted to receive said column and an upper F. This principle is well illustrated in H6. 5 wherein axially o?set cylindrical portion having an internal diam a pair of forceps ‘Ed is mounted in the aperture 28. Said eter greater than the internal diameter of said lower forceps comprise handles 51 and jaws 5?; pivoted together portion, securing means associated with said sleeve for at 53. The jaws 52 are threaded downwardly through optionally securing said sleeve to said column in any the aperture 23 to project below the plate ‘20 whereby vertically and rotatably adjusted position, a tray for when said plate is tilted away from the burner B, the lowermost work end 54 of the forceps is pivoted upwardly holding said instruments, said tray having an arm extend ing downwardly therefrom, a cylindrical tube pivotably and outwardly where it is readily accessible to the ?ame connected to said arm, said tube being rotatably mounted F of said burner. 35 at its lower end in said upper cylindrical portion of said It will be readily understood that both the needle-like sleeve, whereby said tray may be vertically adjusted and instruments 24 and the plier-like instruments 40-50 may tilted ‘to any desired angle. be sterilized simultaneously by using two burners or sterilizing devices at opposite sides of the rack 1. It References Cited in the ?le of this patent will also be understood that simple modifications in the 40 UNITED STATES PATENTS rack may be made, such as modi?cations in the size or number of the slots 23 or the aperture 28, without depart Rinderer _____________ __ July 2, 1957 2,797,747 ing from the spirit of this invention or the scope of the appended claims. OTHER REFERENCES 45 What I claim is: Fisher “Modern Lab. Appliances,” Catalog 59, pp. 1. An adjustable rack for bacteriological handling in 751, 860 and 861. struments comprising a base, a vertically upstanding col umn rotatably mounted in said base, a continuous sleeve slidably telescoped over said column and vertically ad Kennedy: Design, June 1959, p. 44. Nadel: Chemist Analyst, vol. 43, #1 (1954), p. 25.