Pressure plate extractor

A pressure plate extractor comprising:

• a. a pressure chamber base;
• b. a drain plate sized to fit on the pressure chamber base, the drain plate including opposing plate inner and outer faces bounded by an intermediate edge;
• c. a pressure chamber sidewall sized to fit on the pressure chamber base about the drain plate;
• and
• d. a seal including:
• (1) a first set of opposing sides, these sides respectively engaging the pressure chamber sidewall and the pressure chamber base;
• (2) a second set of opposing sides, these sides respectively engaging the pressure chamber base and the drain plate.

A pressure plate extractor comprising:

• a. a pressure chamber base;
• b. a drain plate sized to fit on the pressure chamber base, the drain plate including:
• (1) a plate inner face adjacent a pressure chamber interior,
• (2) an opposing plate outer face outside the pressure chamber interior, and
• (3) a plate intermediate edge situated between the plate inner and outer faces;
• c. a pressure chamber sidewall sized to fit on the pressure chamber base and to surround the entirety of the plate inner face;
• d. a seal:
• (1) resting between and engaging the pressure chamber sidewall and the pressure chamber base along a first direction, and
• (2) resting between and engaging the pressure chamber base and the plate intermediate edge along a second direction oriented at least substantially perpendicular to the first direction,
• such that when the pressure chamber sidewall is urged in the first direction toward the pressure chamber base, the seal is compressed therebetween, and thereby expands in the second direction between the pressure chamber base and the plate intermediate edge.