Abstract: A method and apparatus for blow molding a case for housing an object, such as a tool, is disclosed generally comprising first and second mold portions located adjacent each other to create separate cavities for forming base and lid portions of a case. The second mold surface includes a protuberance for creating a protrusion on an outer wall of the case during blow molding, which serves to restrain the movement of an object that is received in a hole in the corresponding inner wall of the case. In certain embodiments, the protrusion corresponds to at least part of the outline of the object or an aperture in the object. In some embodiments, the protrusion is positioned to engage an edge of the object to prevent movement.

Abstract: A method and apparatus for blow molding a case for housing an object, such as a tool, is disclosed generally comprising first and second mold portions located adjacent each other to create separate cavities for forming base and lid portions of a case and a punch for each portion corresponding to the outline of an object. In certain embodiments, the punch protrudes into the cavity during blow molding to create a sidewall to facilitate a press fit. In some embodiments, additional punches and/or recesses are provided to produce additional apertures or flanges in the walls of the tool case.

Abstract: A blow molded article includes an outer wall and an article retaining feature projecting outwardly therefrom. The article retaining feature includes a distal wall and a side wall connecting the distal wall and the outer wall of the blow molded article. The side wall is generally orthogonal to the outer wall of the blow molded article, and an inner surface is defined at least partially by inner edges of the side wall, the distal wall and the outer wall of the blow molded article. The side wall has a hole integrally molded therein.

Abstract: A blow molded article includes an outer wall and an article retaining feature projecting outwardly therefrom. The article retaining feature includes a distal wall and a side wall connecting the distal wall and the outer wall of the blow molded article. The side wall is generally orthogonal to the outer wall of the blow molded article, and an inner surface is defined at least partially by inner edges of the side wall, the distal wall and the outer wall of the blow molded article. The side wall has a hole integrally molded therein.

Abstract: Methods and apparatuses for creating blow-molded components are disclosed. More particularly, the present invention concerns methods and apparatuses for creating double-wall blow-molded components with one or more protuberances not abutting a parting line of a mold. Generally, the protuberances are created by a method comprising the steps of blowing blow-molding material against a molding surface with a cavity of a predetermined shape, so that the blow-molding material enters the cavity at a first end, and urging the blow-molding back toward the first end of the cavity by moving a piston of a predetermined shape. The invention also concerns apparatuses to employ such methods, and the resulting blow-molded objects.

Abstract: A level case includes a tubular body having a series of walls that define an internal cavity, and a cap that selectively closes the internal cavity. A series of indentations are formed in the walls, and are configured to receive and engage the corners of a level received within the internal cavity. The internal cavity defines spaces between the level surfaces and the facing surfaces of the walls, to protect the level surfaces in the event the walls of the tubular body are subjected to forces that cause inward deformation of the walls. The cap is configured similarly to the tubular body, including indentations that receive the corners of the level. The cap is engaged over the opening of the tubular body so as to enclose a portion of the level that extends outwardly of the tubular body. The indentations in the tubular body are continuous throughout a majority of the length of the tubular body.

Abstract: A blow molded article includes an outer wall and an article retaining feature projecting outwardly therefrom. The article retaining feature includes a distal wall and a side wall connecting the distal wall and the outer wall of the blow molded article. The side wall is generally orthogonal to the outer wall of the blow molded article, and an inner surface is defined at least partially by inner edges of the side wall, the distal wall and the outer wall of the blow molded article. The side wall has a hole integrally molded therein.