Abstract: A toothbrush with a pinch grip toothbrush handle facilitates a healthier brushing technique by encouraging the use of a pinch grip. A pinch grip handle with one or more finger grooves encourages the use of a pinch grip, thereby reducing the amount of pressure a user can apply during brushing at any brushing orientation. A finger groove may be contoured, consisting of concave surface areas and optionally convex surface areas. A handle may feature a pair of finger grooves that resemble a peanut or hour glass shape, which encourages the use of a pinch grip. Embodiments may take the form of a supplemental attachment to a toothbrush, or an integral part of a solid single-piece toothbrush.

Abstract: A toothbrush with a pinch grip toothbrush handle facilitates a healthier brushing technique by encouraging the use of a pinch grip. A pinch grip handle with one or more finger grooves encourages the use of a pinch grip, thereby reducing the amount of pressure a user can apply during brushing at any brushing orientation. A finger groove may be contoured, consisting of concave surface areas and optionally convex surface areas. A handle may feature a pair of finger grooves that resemble a peanut or hour glass shape, which encourages the use of a pinch grip. Embodiments may take the form of a supplemental attachment to a toothbrush, or an integral part of a solid single-piece toothbrush.

Abstract: A toothbrush with a pinch grip toothbrush handle facilitates a healthier brushing technique by encouraging the use of a pinch grip. A pinch grip handle with one or more finger grooves encourages the use of a pinch grip, thereby reducing the amount of pressure a user can apply during brushing at any brushing orientation. A finger groove may be contoured, consisting of concave surface areas and optionally convex surface areas. A handle may feature a pair of finger grooves that resemble a peanut or hour glass shape, which encourages the use of a pinch grip. Embodiments may take the form of a supplemental attachment to a toothbrush, or an integral part of a solid single-piece toothbrush.

Abstract: A toothbrush with a pinch grip toothbrush handle facilitates a healthier brushing technique by encouraging the use of a pinch grip. A pinch grip handle with one or more finger grooves encourages the use of a pinch grip, thereby reducing the amount of pressure a user can apply during brushing at any brushing orientation. A finger groove may be contoured, consisting of concave surface areas and optionally convex surface areas. A handle may feature a pair of finger grooves that resemble a peanut or hour glass shape, which encourages the use of a pinch grip. Embodiments may take the form of a supplemental attachment to a toothbrush, or an integral part of a solid single-piece toothbrush.

Abstract: A toothbrush with a pinch grip toothbrush handle facilitates a healthier brushing technique by encouraging the use of a pinch grip. A pinch grip handle with one or more finger grooves encourages the use of a pinch grip, thereby reducing the amount of pressure a user can apply during brushing at any brushing orientation. A finger groove may be contoured, consisting of concave surface areas and optionally convex surface areas. A handle may feature a pair of finger grooves that resemble a peanut or hour glass shape, which encourages the use of a pinch grip. Embodiments may take the form of a supplemental attachment to a toothbrush, or an integral part of a solid single-piece toothbrush.

Abstract: A toothbrush with a pinch grip toothbrush handle facilitates a healthier brushing technique by encouraging the use of a pinch grip. A pinch grip handle with one or more finger grooves encourages the use of a pinch grip, thereby reducing the amount of pressure a user can apply during brushing at any brushing orientation. A finger groove may be contoured, consisting of concave surface areas and optionally convex surface areas. A handle may feature a pair of finger grooves that resemble a peanut or hour glass shape, which encourages the use of a pinch grip. Embodiments may take the form of a supplemental attachment to a toothbrush, or an integral part of a solid single-piece toothbrush.

Abstract: A toothbrush with an abbreviated toothbrush handle facilitates a healthier brushing technique by encouraging the use of a pinch grip. An abbreviated handle with one or more finger grooves encourages a two or three fingered pinch grip, thereby reducing the amount of pressure a user can apply during brushing at any brushing orientation. A finger groove may be contoured, consisting of concave surface areas and optionally convex surface areas. A handle may feature a pair of finger grooves that resemble a peanut or hour glass shape, which encourages the use of a pinch grip. Embodiments may take the form of a supplemental attachment to a toothbrush, or an integral part of a solid single-piece toothbrush.

Abstract: A toothbrush with an abbreviated toothbrush handle facilitates a healthier brushing technique by encouraging the use of a pinch grip. An abbreviated handle with one or more finger grooves encourages a two or three fingered pinch grip, thereby reducing the amount of pressure a user can apply during brushing at any brushing orientation. A finger groove may be contoured, consisting of concave surface areas and optionally convex surface areas. A handle may feature a pair of finger grooves that resemble a peanut or hour glass shape, which encourages the use of a pinch grip. Embodiments may take the form of a supplemental attachment to a toothbrush, or an integral part of a solid single-piece toothbrush.

Abstract: An electrically powered compressor designed for providing high pressure ratio at low flow rate, yet having low power consumption. The compressor is designed for optimizing efficiency in fuel cell systems. The inventive compressors are however not limited to fuel cell system applications.