A device is described for maintaining bedding, such as the bottom sheet and mattress pad, in place on a mattress and preventing its becoming dislodged due to either the movement of the bed itself or its occupant. The device is a partial coverlet which fits over a portion of the end of the mattress and is held in place by elastic straps which grip the sides of the mattress to hold the mattress pad and sheet so that they do not pull off.

A device for maintaining at least a portion of a flexible conduit such as a water hose or the like in a predetermined fixed curvilinear position is disclosed herein and includes a shell or housing in the shape of, for example, a segment of a toroid having a top curvilinear section, a bottom curvilinear section and opposite side sections, all of which extend from one open end of the shell to an opposite open end thereof. An opening is located in one of the shell's side sections between the top an...

An internal combustion engine with vacuum operated bellows for maintaining a throttle position, has a fan pressure responsive control for the vacuum applied to the bellows. A manual adjustment is provided, for speed to be maintained, and a brake pedal operated switch vents the vacuum of the bellows to disable the control until manually reinstated by pushing a button.

Water level is maintained in a poultry waterer by means of a float-operated valve of the type comprising a water discharge port, a valve seat surrounding the discharge port on the upstream side, a valve pin extending through the port and having an annular valve seal disposed at its end on the upstream side of the discharge port, the valve seal being arranged to cooperate with the seat, and the valve pin having a float secured to its opposite end.

A two-piece, shell-like holder composed of two telescopically mating shell portions sized to be connected together and to maintain a male and a female plug in electrical engagement with one another so that the interconnected shell structure assumes axial forces applied to and tending to separate the electrical connection and wherein the shell portions include interlocking portions when in telescopic engagement which an be unlocked by rotating the shell portions relative to one another and separa...

A two-sectional implement for retaining the heat of food to be served, which includes a bottom section adapted to receive a plate with food, and a top section adapted to fit and to be placed upon said bottom section to form a closed chamber therewith adapted selectively to be opened and closed, each of said sections comprising an inner wall and an outer wall arranged in spaced relationship to said inner wall and defining therewith a permanently closed chamber, and synthetic hard foam material fi...

A dome pressure maintaining valve and circuit for maintaining dome fluid pressure in a pilot operated relief valve is presented wherein the dome pressure in the relief valve is prevented from dropping below a preset value even when inlet pressure at the relief valve drops to zero. The dome pressure maintaining valve incorporates a compact check valve and a back flow relief valve with the two components integrated into one piston embodiment, the valve having in communication with a body bore inle...

A method for maintaining a preselected concentrations of first and second charge directors in a toner composition, where such composition is being subjected to a use in which initial concentrations of the first and second charge directors are being depleted.

The invention is to a liquid filled soft pouch attached to an upper partial or complete denture or a Hawley appliance for moisturizing a dry mouth (Xerostomia) the pouch having a fill valve and an exit valve, the latter operated by the tongue to permit exit of liquid, artifical salvia, to wet the mouth. The exit valve may be eliminated by employing a lower surface of the pouch which is porous so that it in effect sweats and liquid may be acquired by running the tongue over the porous surface.

Method and apparatus to maintain homogeneity in a mixture of a fluid carrier and a quantity of magnetically permeable particles in which the mixture within a cylindrical container is subjected to the influence of a magnetic field which rotates around the container, and which at any instant is centered about its own axis lying outside the container. The field has an axis with directional components in a circumferential sense and in the axial sense of the container. In the apparatus, the field is ...