Abstract: A scraper is provided with a first member having an upper housing and a lower jaw, a second member having a lower housing and an upper jaw, and a slide latch for clamping the upper housing to the lower housing. The first and second members are pivotally connected to each other such that when the upper and lower housings are clamped together by the latch, the upper and lower jaws are clamped together to hold a blade between them. The slide latch engages an end portion of the upper and lower housings in order to clamp the jaws together. The slide latch has ridges to assist a user to push the slide latch forward to lock a blade into place and backward to release a blade. The lower housing has a cavity for storing spare blades.

Abstract: A scraper, such as a wall scraper using a standard replaceable blade, is provided with an adjustable scraper head for changing the attack angle of the blade to suit the user and/or the job. Embodiments include a scraper having an elongated handle and a scraper head for fixedly holding a blade, the scraper head being pivotably mounted to an end of the handle for positioning the scraper head at a selected angle to the handle. A lock, engageable with the handle and the scraper head, fixes the scraper head at the selected angle. The lock has a knob for gripping the scraper, and the handle has a rear grip, thus allowing the user greater control of the scraper.

Abstract: A removable firebox for use in a portable, collapsible barbecue grill including retractable heating grate on top of the firebox and a retractable mid-level cooking grill for providing high-temperature cooking. A lower main grill is disposed in a base cavity of the barbecue grill for providing moderate temperature cooking. The firebox rests in the base cavity of the grill housing and provides heat to a cooking area defined by the base cavity, an upper lid of the housing and a pair of side walls extending upward from the base cavity. The firebox and/or the upper lid includes insulation and/or cooling baffles to protect users from heated surfaces. Venting is provided from the sides and rear of the grill housing. When collapsed, the grate and grills fold onto or are retracted within the firebox, and the entire firebox assembly is stowed in a sealed grill housing. The top and bottom portions of the grill housing mate to form a sealed container-like structure for convenient transportability or storage.

Abstract: A removable firebox for use in a portable, collapsible barbecue grill including retractable heating grate on top of the firebox and a retractable mid-level cooking grill for providing high-temperature cooking. A lower main grill is disposed in a base cavity of the barbecue grill for providing moderate temperature cooking. The firebox rests in the base cavity of the grill housing and provides heat to a cooking area defined by the base cavity, an upper lid of the housing and a pair of side walls extending upward from the base cavity. The firebox and/or the upper lid includes insulation and/or cooling baffles to protect users from heated surfaces. Venting is provided from the sides and rear of the grill housing. When collapsed, the grate and grills fold onto or are retracted within the firebox, and the entire firebox assembly is stowed in a sealed grill housing. The top and bottom portions of the grill housing mate to form a sealed container-like structure for convenient transportability or storage.

Abstract: A removable firebox for use in a portable, collapsible barbecue grill including retractable heating grate on top of the firebox and a retractable mid-level cooking grill for providing high-temperature cooking. A lower main grill is disposed in a base cavity of the barbecue grill for providing moderate temperature cooking. The firebox rests in the base cavity of the grill housing and provides heat to a cooking area defined by the base cavity, an upper lid of the housing and a pair of side walls extending upward from the base cavity. The firebox and/or the upper lid includes insulation and/or cooling baffles to protect users from heated surfaces. Venting is provided from the sides and rear of the grill housing. When collapsed, the grate and grills fold onto or are retracted within the firebox, and the entire firebox assembly is stowed in a sealed grill housing. The top and bottom portions of the grill housing mate to form a sealed container-like structure for convenient transportability or storage.

Abstract: A removable firebox for use in a portable, collapsible barbecue grill including retractable heating grate on top of the firebox and a retractable mid-level cooking grill for providing high-temperature cooking. A lower main grill is disposed in a base cavity of the barbecue grill for providing moderate temperature cooking. The firebox rests in the base cavity of the grill housing and provides heat to a cooking area defined by the base cavity, an upper lid of the housing and a pair of side walls extending upward from the base cavity. The firebox and/or the upper lid includes insulation and/or cooling baffles to protect users from heated surfaces. Venting is provided from the sides and rear of the grill housing. When collapsed, the grate and grills fold onto or are retracted within the firebox, and the entire firebox assembly is stowed in a sealed grill housing. The top and bottom portions of the grill housing mate to form a sealed container-like structure for convenient transportability or storage.

Abstract: A video inspection device using a field mode CCD camera. In order to inspect the printing on a moving web, a field mode CCD camera is provided with a zoom lens and strobe light. The image obtained is processed so that only alternate pixels of the image are stored. When reading out the stored image, the image is blown up by a factor of two and the missing pixels are interpolated horizontally and vertically. The resultant image is displayed in a monitor for the operator to inspect.