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Publication numberUS3547505 A
Publication typeGrant
Publication dateDec 15, 1970
Filing dateJul 9, 1969
Priority dateJul 9, 1969
Publication numberUS 3547505 A, US 3547505A, US-A-3547505, US3547505 A, US3547505A
InventorsCarlson Arthur W, Ott Donald E
Original AssigneeSheldon & Co E H
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Biological service center
US 3547505 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

Dec. 15,1970

Filed July 9, 1969 D. E. OTT

BIOLOGICAL SERVICE CENTER 3 Sheets-Sheet l INVENTORS Donald E, Off Arthur W. Carlson and) ATTORNEYS Dec. 15 1970 n. ,011- ET BIOLOGICAL SERVICE CENTER 3 Sheets-Sheet 2 Filed July 9, 1969 FIG. 3

FIG. 4

FIG. 5

FIG. 6

I N VENTORS Donald E. On. Arthur W. Corlisbfi BY iallbno v ATTORNEYS Dec. 15, 1970 a, 0 ETAL 3,547,505

BIOLOGICAL SERVICE CENTER Filed July 9. 1969 v 3 SheetsSheet 3 FIG. 10.

INVENTORS Donuid E. 01? j Arthur W. Carlson Qawacm QZJtOm i ji and [6 ATTORNEYS United States Patent 3,547,505 BIOLOGICAL SERVICE CENTER Donald E. Ott and Arthur W. Carlson, Muskegon, Mich., assignors to E. H. Sheldon & Company, Muskegon, Mich., a corporation of Michigan Filed July 9, 1969, Ser. No. 840,268 Int. Cl. A47b 81/00; A61g 11/00 US. Cl. 312-209 6 Claims ABSTRACT OF THE DISCLOSURE BACKGROUND AND SUMMARY OF INVENTION In studying microorganisms, controlled conditions must be observed. These involve not only atmospheric conditions, but extend also to conditions of sterility, and, for the first time, a work center is provided that maximizes the achievement of all of the necessary conditions while at the same time providing extreme flexibility of operation.

DETAILED DESCRIPTION The invention is described in conjunction with the accompanying drawings, in which:

FIG. 1 is an exploded perspective view of an embodiment of the invention;

FIG. 2 is a perspective view of a modified form of enclosure, which is also utilized in the practice of the invention;

FIG. 3 is a top plan view of the sink portion of FIG. 1;

FIG. 4 is a side elevational view of the sink of FIG. 3;

FIGS. 5 and 6 are sectional views taken along the side lines 5-5 and 66 of FIG. 4;

FIG. 7 is a vertical sectional view of the basic enclosure, but without the sink included;

FIG. 8 is a top plan view of the unit of FIG. 1, and showing the superstructure thereof;

FIG. 9 is a side elevational view of the superstructure of FIG. 8; and

FIG. 10 is a front elevational view of the control panel framing associated with the front part of the superstructure of FIG. 8.

In the illustration given, and with reference to FIG. 1, the numeral designates generally a rectangular enclosure which is seen to include side walls 21 integrated with a rear wall 22. The superstructure 23 houses certain controls and other equipment, and constitutes the top wall of the enclosure. In particular, a fan unit 24 is supported 0n the superstructure which draws air from the enclosure 25, optimally at a face velocity of forty feet per minute. This not only maintains the interior space 25 comfortable, but also clears the gases therefrom which are heavier than air. For this purpose, the superstructure 23 (see FIG. 8) is equipped with an upwardly-facing grill 26 which communicates with the fan 24 (not shown in FIG. 8). The bottom portion of the enclosure 21 is utilized for the provision of drawer space, as at 27 and 28, while the right hand portion available through the doors 29 provides a facility for utilities, i.e., garbage disposal (see FIG. 2). The essential difference between the showing in FIGS. 1 and 2 resides in the character of the sink generally designated 31 in FIG. 1 and 131 in FIG. 2.

Also provided in the basic enclosure is a storage shelf 32 which constitutes a convenient mounting area for reagent bottles and the like. Immediately below the left hand portion of the sink is provided a pull-out panel or plate 33 (see FIGS. 2 and 7) which serves as a convenient work area for utilizing a microscope, writing, or doing microtome work. If a microscope is employed, it can be conveniently stored within the drawer 27.

The superstructure not only includes the control panel 34 for regulating the light, fan, etc., but provides a support for germicidal lamps, as at 35, and a fluorescent lamp section 36. The control panel 34 is provided as part of a frame structure 37 (see FIG. 10) which advantageously may be equipped with a transparent cover lockable in place so as to permit visual ascertainment of the setting of the controls, but being tamper-proof.

A glove port front, generally designated 38, is seen in FIG. 1. It will be appreciated that the same device may be used in connection with the embodiment shown in FIG. 2. The front 38 includes a panel of transparent plastic material, such as Plexiglas, in which apertures 39 are provided. A rubber glove 40 is provided for each aperture and held in place by suitable ring clamps 41. The front is inserted within a groove 42 provided in the underside of the superstructure, and fits into the sink 31, the corners of the panel being notched as at 43 to conform generally to the lower corner portion of the access to the space 25. Thus, a certain amount of air leakage occurs Which insures that any noxious vapors are conducted out of the hooded space by the fan 24.

The sink 31 is seen in FIG. 3, and includes a counter top portion 44 which is sloped to the rear (see FIG. 6) as well as to the right. A depressed portion 45 is provided communicating via a drain connection 46 with the garbage disposal unit 30. The entire sink and counter is constructed of acid-resistant material, and is provided as an integral unit, being equipped with suitable apertures for utilities such as air and gas, as at 47 (see FIG. 1). Because of the pitch of the counter 44, the sink can be rinsed quickly and easily. Additionally, the sink projectsboth in the version designated 31 and the version 131-outwardly of the unit so that a student can sit comfortably on a stool while performing work in the biological service center. This can be either on the sink counter 44 or on the pullout panel 33. The drawer 28 can be pulled out to give access to a trash compartment for towels and the like.

transparent panel is removably positioned in said from opening to close the same.

3. The structure of claim 2 in which said exhaust port means is adapted to develop a face velocity of at least the order of about 40 feet per minute.

4. The structure of claim 1 in which said sink is con structed and arranged to project outwardly forwardly 0t said cabinet at height adequate to permit a student to sit on a stool below said sink.

5. The structure of claim 1 in which said sink is equipped with an integral counter portion having a double pitch to facilitate drainage of liquid thereon toward a drain.

6. The structure of claim 1 in which said cabinet is equipped with a sliding leaf panel immediately below said sink for use in microtone work and the like.

References Cited UNITED STATES PATENTS 3/1957 Taylor et al. 3l21 7/1969 Coburn 312-209 US. Cl. X.R. 312-1

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2786740 *Jul 9, 1954Mar 26, 1957Air ReductionSpecial atmosphere device
US3455620 *Jul 13, 1966Jul 15, 1969Cox Systems LtdDental operating units
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3822714 *Mar 24, 1971Jul 9, 1974Kernforschungsanlage JuelichConduit system for the transport of liquid and/or gaseous media and method
US3874754 *Nov 27, 1972Apr 1, 1975Kewaunee Scient Equipment CorpBiohazard safety cabinet
US4196953 *Aug 16, 1976Apr 8, 1980Krakow Kalman IDarkroom module
US4938548 *Apr 30, 1986Jul 3, 1990Shure Manufacturing CorporationModular mechanic's workstation
US5012537 *Jun 17, 1988May 7, 1991Underwood Joanna LCleaning shield
US5095925 *Mar 13, 1989Mar 17, 1992Elledge David MAseptic cleaning apparatus
US5259812 *Sep 23, 1992Nov 9, 1993Kleinsek Don AClean room and clean room containment center
US5399007 *Apr 15, 1993Mar 21, 1995Reliance Medical Products, Inc.Medical treatment cabinet
US5562593 *Jun 2, 1995Oct 8, 1996The United States Of America As Represented By The United States Department Of EnergySplit ring containment attachment device
US8186775 *May 19, 2010May 29, 2012Sheldon Dan MErgonomically improved arm portal and pass box assembly
US8956861 *Sep 14, 2012Feb 17, 2015Panasonic Healthcare Holdings Co., Ltd.Container tray, tray base, and observation unit
US9114474Apr 11, 2011Aug 25, 2015Lincoln Global, Inc.Accessible work cell
US20100156257 *Jul 28, 2009Jun 24, 2010Frank BackhausSafety cabinet
US20110285257 *May 19, 2010Nov 24, 2011Sheldon Dan MErgonomically Improved Arm Portal and Pass Box Assembly
US20130008266 *Sep 14, 2012Jan 10, 2013Sanyo Electric Co., Ltd.Container tray, tray base, and observation unit
WO1989012720A1 *Jun 16, 1989Dec 28, 1989Underwood, Joanna, L.Cleaning shield
U.S. Classification312/1, 312/209
International ClassificationB25J21/02, B01L1/00, B08B15/00, B08B15/02, A47B37/00, A47B77/04, B25J21/00
Cooperative ClassificationB01L1/00, A47B77/04, A47B37/00, B08B15/026, B25J21/02
European ClassificationB25J21/02, B08B15/02G, A47B37/00, A47B77/04, B01L1/00