Adjustable pivot bolt for a sealed manhole clamp

An adjustable pivot bolt for use in a vertical orientation for securing, the adjustable pivot bolt comprising:

• a cylindrical upper portion having internal threads inside an internally threaded channel, a boss having an aperture, and an internal groove adjacent the internal threads;
• an O-ring positioned within the internal groove and adjacent the internal threads;
• a lower bolt portion positioned vertically below and extending upward into the internally threaded channel of the cylindrical upper portion, the lower bolt portion having a length with the length having a threaded portion, the threaded portion of the length engaging with the internally threaded channel of the cylindrical upper portion and the lower bolt portion having a bottom having a boss having an aperture;
• and
• the threaded portion of the length of the lower bolt portion is positioned completely within the internally threaded channel of the cylindrical upper portion.

An adjustable pivot bolt for use in a vertical orientation for securing, the adjustable pivot bolt comprising:

• a cylindrical upper portion having internal threads inside an internally threaded channel and a boss having an aperture;
• a lower bolt portion positioned vertically below the cylindrical upper portion and having a length having a threaded portion with the threaded portion positioned inside the internally threaded channel and engaging with the internal threads in the internally threaded channel of the cylindrical upper portion, a smooth surface positioned adjacent and below the threaded portion of the length of the lower bolt portion, and a bottom having a boss having an aperture;
• the cylindrical upper portion having a bottom end being contoured inwardly and close tolerance against the smooth surface of the lower bolt portion with the bottom end acting as a scraper for removing any product buildup from the smooth surface of the lower bolt portion when the adjustable pivot bolt is adjusted;
• and
• the threaded portion of the lower bold portion is contained completely within the internally threaded channel of the cylindrical upper portion.