Abstract: A dispenser for fluid material such as cosmetic materials in the nature of mascara and the like is operative by one hand manipulation. The dispenser includes an internal reservoir for storage of an applicator attached to a post reciprocally received within a sleeve. A slider device is attached to the post having a portion accessible by the user. By one hand manipulation of the slider device, the applicator may be projected from the dispenser for use and retracted for storage. A closure member at one end of the dispenser may be opened and closed by manual manipulation or automatically by coupling to the slider device. Internal seals within the dispenser prevent evaporation of liquid and/or other volatile components of the fluid materials stored within the dispenser.

Abstract: A dispenser includes a holder/carrier for products of stick-like form to enable application of a wide variety of materials. A plurality of resilient/flexible barbs having spring-like properties extend into the holder/carrier for embedding into the received material. The barbs preclude dislodgment of the stick-like product which may occur due to vibration caused during shipment or subsequent use of the dispenser.

Abstract: A volatile substance dispenser is provided which provides an indication of the dissipation of a quantity of volatile substance by changing an electrical signal level after a time duration corresponding to an expected period time for the quantity of volatile substance to disseminate. A heat source causes the volatile substance to disseminate into the atmosphere. Dissipation of the volatile substance is indicated. For example, dissipation may be indicated by a light bulb burning out where the light bulb is a limited duration bulb with a lifetime that corresponds to the quantity of volatile substance. The dispenser may be disposable and may also serve as a night light.