Abstract: A fully digital integrated circuit apparatus (200) and method (300) are provided for generating a test mode enable signal with a digital non-resettable state retention storage circuit (210) connected to store an authentication control pattern for authorizing test mode access to a secure circuit, a digital safety interlock gate circuit (220) connected to store a safety interlock gate setting that may be accessed independently from a test mode enable signal, and combinatorial logic circuitry (205) for generating the test mode enable signal only when the interlock safety gate setting is set to a first value and the digital non-resettable state retention storage circuit stores the authentication control code.

Abstract: A fully digital integrated circuit apparatus (200) and method (300) are provided for generating a test mode enable signal with a digital non-resettable state retention storage circuit (210) connected to store an authentication control pattern for authorizing test mode access to a secure circuit, a digital safety interlock gate circuit (220) connected to store a safety interlock gate setting that may be accessed independently from a test mode enable signal, and combinatorial logic circuitry (205) for generating the test mode enable signal only when the interlock safety gate setting is set to a first value and the digital non-resettable state retention storage circuit stores the authentication control code.

Abstract: A mechanical hitch control system for a vehicle includes a draft force sensing member, a mechanical hitch control unit, a hitch valve actuator, and a cable transmitting a draft force signal to the hitch control unit. A draft cam is coupled to the draft force sensing and setting members. A position cam is coupled to the position setting member and to a hitch position sensing member. A draft pickup cam is coupled to the draft cam and pivotally mounted on the hitch position setting member. At least one of the cams is operatively engagable with the hitch valve actuator. The cams are enclosed by housing with an opening covered by a removable side plate. The cams and levers are coupled to input members which are inserted through the side plate. The assembled cams, levers and input members are then installed into the housing through the opening.

Abstract: A mechanical hitch control system for a vehicle includes a draft force sensing member, a mechanical hitch control unit, a hitch valve actuator, and a cable transmitting a draft force signal to the hitch control unit. A draft cam is coupled to the draft force sensing and setting members. A position cam is coupled to the position setting member and to a hitch position sensing member. A draft pickup cam is coupled to the draft cam and pivotally mounted on the hitch position setting member. At least one of the cams is operatively engagable with the hitch valve actuator. The cams are enclosed by housing with an opening covered by a removable side plate. The cams and levers are coupled to input members which are inserted through the side plate. The assembled cams, levers and input members are then installed into the housing through the opening.

Abstract: A comprehensive system for the cleaning, inspection, and testing of tubulars, particularly riser pipes, is provided. In a first aspect, a method of inspecting a tubular comprises cleaning, visually inspecting, corrosion mapping, and TOM testing the tubular. In another aspect, a specially designed or adapted tool is provided for each of the steps of the method.

Abstract: A comprehensive system for the cleaning, inspection, and testing of tubulars, particularly riser pipes, is provided. In a first aspect, a method of inspecting a tubular comprises cleaning, visually inspecting, corrosion mapping, and TOM testing the tubular. In another aspect, a specially designed or adapted tool is provided for each of the steps of the method.

Abstract: A comprehensive system for the cleaning, inspection, and testing of tubulars, particularly riser pipes, is provided. In a first aspect, a method of inspecting a tubular comprises cleaning, visually inspecting, corrosion mapping, and TOFD testing the tubular. In another aspect, a specially designed or adapted tool is provided for each of the steps of the method.

Abstract: A comprehensive system for the cleaning, inspection, and testing of tubulars, particularly riser pipes, is provided. In a first aspect, a method of inspecting a tubular comprises cleaning, visually inspecting, corrosion mapping, and TOFD testing the tubular. In another aspect, a specially designed or adapted tool is provided for each of the steps of the method.