Abstract: A dispenser adapted for use in personal application of viscous liquid. The dispenser includes a hollow container for the liquid and valve structure on the container. The valve is automatically shiftable by actuation of an exterior portion thereof to bias a spring structure and permit flow of the viscous liquid to the person. The spring structure is designed so that a substantially uniform opening is provided to facilitate uniform dispensing of viscous liquid such as a lotion. For this purpose, the spring structure includes a plurality of spaced spring stems which act in concert to submit uniformly to pressure in opening of the valve and to substantially uniformly close the valve when the pressure is released.

Abstract: In a writing instrument comprising a writing core and an ink tank, the contact of the writing core with the ink in the ink tank is intercepted so that unnecessary loss of the ink due to evaporation from the core surface and excessive supply of the ink to the core are effectively prevented. Merely pressing the end portion of the outer case of the writing instrument allows a spring, a valve member and a flexible bellows portion of the ink tank to supply an appropriate amount of ink into the core.

Abstract: A fluid applicator for applying fluid to a surface has a reservoir for fluid. An outlet from the reservoir leads to a roller assembly comprising at least two rollers which are arranged to roll over the surface to be marked so as to apply fluid from the reservoir to the surface in a single line. The roller assembly is removably mounted between side frame members and the surface of each roller is framed by a peripheral sleeve of an absorbent material. The sleeve can then be removed from the applicator for renewal or cleaning.