Device of dispensing micro doses of aqueous solutions of substances onto a carrier and device for carrying out said method
First Claim
1. A device for microdispensing a volume of an aqueous solution to a carrier, comprised of a base one of the sides of which carries a plurality of rods which are held firm against said base with one of their ends, the free butt ends of said rods being coplanar, wherein said device is further provided with a means for maintaining the temperature of the free butt ends essentially equal to the dew point of the ambient air, wherein the means for maintaining the temperature of the free butt ends of the rods is a battery of thermoelectric cells shaped as a plate having equal size with the base and contacting the latter on the side opposite to that carrying the rods, both the base and the rods being made of a heat-conductive material.
4 Assignments
0 Petitions
Accused Products
Abstract
A device for dispensing microdoses of aqueous solutions are provided, whereby the substance is transferred by the free surface end of a rodlike transferring element; the temperature of the transferring element is maintained at essentially the dew point of the ambient air during the transfer. The device may comprise a plate-like base to which are affixed a plurality of rods; the unfixed butt ends of the rods are coplanar. The device further comprises a means for maintaining the temperature of the unfixed butt ends of the rods essentially equal to the dew point of the ambient air during transfer of the aqueous substance.
-
Citations
17 Claims
- 1. A device for microdispensing a volume of an aqueous solution to a carrier, comprised of a base one of the sides of which carries a plurality of rods which are held firm against said base with one of their ends, the free butt ends of said rods being coplanar, wherein said device is further provided with a means for maintaining the temperature of the free butt ends essentially equal to the dew point of the ambient air, wherein the means for maintaining the temperature of the free butt ends of the rods is a battery of thermoelectric cells shaped as a plate having equal size with the base and contacting the latter on the side opposite to that carrying the rods, both the base and the rods being made of a heat-conductive material.
- 11. A device for microdispensing a volume of an aqueous solution to a carrier, comprised of a base one of the sides of which carries a plurality of rods which are held firm against said base with one of their ends, the free butt ends of said rods being coplanar, said device further provided with a means for maintaining the temperature of the free butt ends essentially equal to the dew point of the ambient air, wherein said means for maintaining the temperature of the free butt ends of the rods is a battery of thermoelectric cells shaped as said base and contacting said base on the side opposite to that carrying the rods, both the base and the rods being made of a heat-conductive material.
Specification