Abstract: A sanding block adapted for abrading a surface, particularly drywall joints, comprising: (a) a body having an array of elongated raised portions having raised end surfaces and recessed portions, the raised end surfaces collectively defining an abrasive working surface and the recessed portions defining channels between adjacent raised portions; (b) a make coat on the end surfaces; and (c) abrasive particles at least partially embedded in the make coat. Also methods of using such sanding blocks.

Abstract: A sanding block adapted for abrading a surface, particularly drywall joints, comprising: (a) a body having an array of elongated raised portions having raised end surfaces and recessed portions, the raised end surfaces collectively defining an abrasive working surface and the recessed portions defining channels between adjacent raised portions; (b) a make coat on the end surfaces; and (c) abrasive particles at least partially embedded in the make coat. Also methods of using such sanding blocks.

Abstract: Herein are disclosed an apparatus and method for reaction injection molding of polyurethane foam. In the method, a recirculation loop containing polyols along with an effective amount of water, and a recirculation loop containing isocyanates, are each partially evacuated.

Abstract: Herein are disclosed an apparatus and method for reaction injection molding of polyurethane foam. In the method, a recirculation loop containing polyols along with an effective amount of water, and a recirculation loop containing isocyanates, are each partially evacuated.

Abstract: Herein are disclosed an apparatus and method for reaction injection molding of polyurethane foam. In the method, a recirculation loop containing polyols along with an effective amount of water, and a recirculation loop containing isocyanates, are each partially evacuated.

Abstract: The disclosure is directed to conversion assemblages adapted for use in converting a surface modifying apparatus, such as a pole sander, whereby the conversion assemblage includes a generally rigid body assembly including first and second major surfaces opposing each other, the first major surface is adapted for receiving the supporting member, and the second major surface is attachable to a surface modifying member.

Abstract: Herein are disclosed an apparatus and method for reaction injection molding of polyurethane foam. In the method, a recirculation loop containing polyols along with an effective amount of water, and a recirculation loop containing isocyanates, are each partially evacuated.

Abstract: In a light projection system, potentially hierarchical levels of light intensity control ensure proper laser-light output intensity, color channel intensity, white point, left/right image intensity balancing, or combinations thereof. The light projection system can include a light intensity sensor in an image path, in a light-source subsystem light-dump path, in a light-modulation subsystem light-dump path, in a position to measure light leaked from optical components, or combinations thereof.

Abstract: In a light projection system, potentially hierarchical levels of light intensity control ensure proper laser-light output intensity, color channel intensity, white point, left/right image intensity balancing, or combinations thereof The light projection system can include a light intensity sensor in an image path, in a light-source subsystem light-dump path, in a light-modulation subsystem light-dump path, in a position to measure light leaked from optical components, or combinations thereof.

Abstract: In a light projection system, potentially hierarchical levels of light intensity control ensure proper laser-light output intensity, color channel intensity, white point, left/right image intensity balancing, or combinations thereof The light projection system can include a light intensity sensor in an image path, in a light-source subsystem light-dump path, in a light-modulation subsystem light-dump path, in a position to measure light leaked from optical components, or combinations thereof.

Abstract: A digital picture frame includes a display on which images are displayed; a detachable and re-attachable apparatus that includes: (i) a mounting base; (ii) a transparent overlay mounted in the mounting base; wherein the overlay spans the display and includes a first side that receives pressure from a user for indicating a mode preference and a second side opposite the first side; (iii) a plurality of activation mechanisms each of which activates a mode preference and are adjacent the second side of the transparent overlay; wherein a particular activation mechanism is activated when user pressure is received within a predetermined spatial relationship to the particular activation mechanism; and (iv) an attachment mechanism that permits the apparatus to be attached and detached from the display.

Abstract: Disclosed is a non-motorized hand manipulatable surface modifying tool and method that facilitates improved surface modifying efficiency and ease of conversion to any one of several different surface treating assemblies. Included is a generally lightweight, low density supporting body assembly made of a block of generally rigid plastic foam material that is sized and shaped to allow a user to manipulate the tool by hand to modify a surface while retaining its shape under hand applying pressure; and a generally flexible surface modifying article.

Abstract: The disclosure is directed to a conversion assemblage adapted for use in converting a surface modifying mechanism, such as a pole sander, having an attaching member. The surface modifying assemblage and method facilitate converting the pole sander with anyone of several different surface treating assemblages in an easy and reliable manner as well as provides for enhanced surface modifying efficiencies and improvements.

Abstract: The disclosure is directed to conversion assemblages adapted for use in converting a surface modifying apparatus, such as a pole sander, whereby the conversion assemblage includes a generally rigid body assembly including first and second major surfaces opposing each other, the first major surface is adapted for receiving the supporting member, and the second major surface is attachable to a surface modifying member.

Abstract: The disclosure is directed to a conversion assemblage adapted for use in converting a surface modifying mechanism, such as a pole sander, having an attaching member. The surface modifying assemblage and method facilitate converting the pole sander with anyone of several different surface treating assemblages in an easy and reliable manner as well as provides for enhanced surface modifying efficiencies and improvements.

Abstract: In one aspect of the invention, a camera for use with a power supply is provided. The camera has a voltage detecting circuit adapted to detect a voltage level at the power source and to generate a voltage level signal. An image capture system is also provided and performs a set of image capture operations. A controller receives the voltage level signal and prevents the image capture system from capturing an image when the voltage level signal indicates that there is insufficient power available in the power supply to perform all of operation in the set of image capture operations.

Abstract: A camera flash circuit employing a piezoelectric transformer in the flash trigger circuit, the piezoelectric transformer having input terminals coupled to the main flash voltage storage capacitor and an output terminal coupled to the flash trigger terminal on the flash tube. When the camera flash trigger switch is closed, the input terminals of the piezoelectric transformer are driven directly from the charge voltage stored on the flash storage capacitor to generate the necessary high voltage pulse at the flash tube trigger terminal to initiate firing of the flash tube.