Abstract: The present invention is directed to a compact robotic device for spraying a biocide powder or liquid to a predetermined area for controlling the infestation by cockroaches and fleas. The compact robotic device comprises a robotic body that can autonomously travel to spray the powder or liquid. The compact robotic device comprises a cartridge containing the biocide powder, a spray head in fluid communication with the cartridge and configured to spray the powder or liquid over a surface and a pump coupled to the cartridge for affecting the flow of powder or liquid from the cartridge to the spray head.

Abstract: The present invention is directed to a compact robotic device for spraying a biocide powder or liquid to a predetermined area for controlling the infestation by cockroaches and fleas. The compact robotic device comprises a robotic body that can autonomously travel to spray the powder or liquid. The compact robotic device comprises a cartridge containing the biocide powder, a spray head in fluid communication with the cartridge and configured to spray the powder or liquid over a surface and a pump coupled to the cartridge for affecting the flow of powder or liquid from the cartridge to the spray head.

Abstract: The present invention is directed to a drinking vessel comprising a glassware having a liquid holding part and a stem extending downwards and away from the liquid holding part, an outer surface of the stem having threads; an elongated article having an inner aperture, the inner aperture having threads that corresponds to the threads of the stem, wherein the elongated article is configured to be fit around the stem of the glassware, such that the threads of the inner aperture engage with the threads of the stem for securing the elongated article over the stem.