SIMPLE AUTOMATIC INOCULATOR

Improved automatic inoculator for bacterial cultures.

A simple automatic inoculator which allows the simultaneous inoculation of several cultures with identical or different inocula is described. The use of Teflon spaghetti tubing allows great flexibility in handling and placing of components. The inoculator can be adapted to handle aerobic and anaerobic bacteria.

Multiple syringe inoculator for agar plates.

The design and operation of a manually operated multiple syringe inoculator was described. Either 9 or 21 inoculations of constant volume could be made simultaneously. Up to 100 plates could be inoculated in 15 min with excellent reproducibility. No contact occurred between the inoculating needles and the agar surface. Construction was simple and inexpensive, with minimal maintenance.

Pneumatic, multiple, simultaneous inoculator for plastic trays.

A device is described which consists of a bonded Plexiglas-silicone rubber plate, perforated to hold capillary pipettes in register with the wells of a plastic tray to be inoculated. Pipette contents are simultaneously discharged by positive air pressure, initiated by closing an exhaust port with the thumb.

A multipoint inoculator for petri dishes.

In recent years, rapid testing of pure cultures of bacteria for biochemical and physiological characters has been a point of great interest to clinicians and to microbial geneticists and taxonomists. The replicate plate technique (J. Lederberg and E. M. Lederberg, J. Bacteriol. 63:399, 1952), although extremely useful and widely employed, has certain disadvantages, particularly with cultures ha...

A Simple Automatic Short Photoperiod Device.