Abstract: A head mounted display device that displays three dimensional images from a mobile device, which includes a viewing assembly, a housing, a mobile device holder, connected to the housing, a reflecting surface, connected to the housing that reflects images displayed by the mobile device, a lens, and an eyepiece onto which the reflecting surface reflects the images through the lens.

Abstract: A head mounted display device that includes a housing that secures a mobile device, which fits on the head of a human viewer, the mobile device including a display, an eyepiece, connected to the housing, onto which images displayed by the mobile device focus for display to the viewer, and a remote control, that includes a wireless transceiver for communicating with the mobile device, and controls operable by the viewer that when activated by the viewer the remote control generates a command that indicates the status or position of the control and transmits the command to the mobile device via the wireless transceiver.

Abstract: A head mounted display device that displays three dimensional images from a mobile device, which includes a viewing assembly, a housing, a mobile device holder, connected to the housing, a reflecting surface, connected to the housing that reflects images displayed by the mobile device, a lens, and an eyepiece onto which the reflecting surface reflects the images through the lens.

Abstract: A head mounted display device that displays three dimensional images from a mobile device, which includes a viewing assembly, a housing, a mobile device holder, connected to the housing, a reflecting surface, connected to the housing that reflects images displayed by the mobile device, a lens, and an eyepiece onto which the reflecting surface reflects the images through the lens.

Abstract: A head mounted display device that displays three dimensional images from a mobile device, which includes a strap that secures the head mounted display to the head of a viewer, a viewing assembly connected to the strap, that includes a housing, a mobile device holder, connected to the housing, a reflecting surface, connected to the housing, that reflects images displayed by the mobile device; and an eyepiece onto which the reflecting surface reflects the images.

Abstract: A head mounted display device that displays three dimensional images from a mobile device, which includes a strap that secures the head mounted display to the head of a viewer, a viewing assembly connected to the strap, that includes a housing, a mobile device holder, connected to the housing, a reflecting surface, connected to the housing, that reflects images displayed by the mobile device; and an eyepiece, connected to the housing, onto which the reflecting surface reflects the images.

Abstract: A head mounted display device that displays three dimensional images from a mobile device, which includes a strap that secures the head mounted display to the head of a viewer, a viewing assembly connected to the strap, that includes a housing, a mobile device holder, connected to the housing, a reflecting surface, connected to the housing, that reflects images displayed by the mobile device; and an eyepiece onto which the reflecting surface reflects the images.

Abstract: A head mounted display device that displays three dimensional images from a mobile device, which includes a strap that secures the head mounted display to the head of a viewer, a viewing assembly connected to the strap, that includes a housing, a mobile device holder, connected to the housing, a reflecting surface, connected to the housing, that reflects images displayed by the mobile device; and an eyepiece, connected to the housing, onto which the reflecting surface reflects the images.

Abstract: A U-shaped channel member fitted horizontally over a gutter, with each protruding channel member engaging the fascia board to which the gutter is attached. Ladder legs rest against the channel member between brackets. A strap attached to the channel member is adapted to engage a ladder rung with the gutter, thereby holding the ladder in engagement with the channel member and further preventing the ladder from sliding laterally or diagonal movement.

Abstract: A U-shaped channel member fitted horizontally over a gutter, with each protruding channel member engaging the fascia board to which the gutter is attached. Ladder legs rest against the channel member between invention brackets. A strap attached to the channel member is adapted to engage a ladder rung with the gutter, thereby holding the ladder in engagement with the channel member and further preventing the ladder from sliding laterally or diagonal movement, i.e., ladder bottom kick out.

Abstract: Apparatus and process are described for telescopically mating top and bottom molded petri dish members wherein the top and bottom members positioned in spaced, substantially coaxial face-to-face relation are moved along a predetermined path, and during travel along such path are moved toward each other into telescopic assembled relation.

Abstract: In a machine for machining metal having a rotating cutting head with a star feed for advancing the cutting head, an adjustable angle drive is provided whereby one can machine a conical concave or convex surface.

Abstract: A grooving bar is provided for machining grooves on the inside surface of a casting or the like, such as the split casing for a pump. The grooving bar of the present invention can be inserted into a casing, adjusted for a precision cut and moved from one cutting location to the next. In accordance with one embodiment of the invention, a geared-down adjustment mechanism is provided for precise feeding of the cutting tool.