Coupling for vacuum systems

A vacuum system quick disconnect coupling, comprising:

• a socket member including a body, said body having a front face and defining a through bore opening at said front face;
• a cover having an outer and an inner face;
• pivot means engaging said cover for pivoting said cover to said socket member;
• a socket member seal dimensioned to seal said through bore at said front face;
• means on said cover for securing said socket member seal to said cover;
• a plug member including a body defining a tubular nipple dimensioned to be received within said socket member through bore;
• plug member seal means carried by said plug member and surrounding said tubular nipple, said seal means engaging said socket member front face and surrounding said through bore when said nipple is disposed within said through bore;
• and
• lock means on said cover for engaging and locking said plug member to said socket member when said nipple is disposed within said through bore, said socket member further including biasing means engaging said cover for biasing said cover into engagement with said body front face, said socket member seal comprising a circular, resilient, generally cup-shaped member opening towards said face, said cup-shaped member having a peripheral skirt, said skirt surrounding said through bore when said cover engages said face, said lock means comprising a retainer pin extending from said inner face of said cover, said plug member body including a recess dimensioned to receive said retainer pin to thereby lock said plug member to said socket, and wherein said plug member body includes more than one of said recesses spaced peripherally around said body and wherein said retainer pin extends from said cover concentrically with said socket member seal.

A fluid system coupling comprising:

• a female member including a body defining a through passage, said through passage defining a seal seat;
• a closure;
• mounting means movably mounting said closure onto said female member for movement between a first position away from said through passage and a second position covering said through passage;
• a seal carried by said closure for sealing said through passage at said seal seat when said closure is in said second position, said seal including a circular, resilient, generally cup-shaped member opening towards said through bore when said closure is in said second position, said cup-shaped member including a peripheral skirt and a flat face portion dimensioned to seat on said seal seat;
• means on the closure for securing said seal to said closure;
• a male member including a means defining a passage, said passage means being insertable into said through passage;
• and
• anti-rotation and lock means movable with said closure and engaging and guiding said male member when said passage means is inserted into said through passage for preventing rotation of said male member and locking said male member to said female member.

An outlet for a vacuum system adapted to receive a plug member having a tubular nipple, comprising:

• a socket having a body defining a bore opening at a face of said body;
• passage means connected to said bore opening for defining a passage connectable to a vacuum source;
• a cover;
• mounting means movably mounting said cover to said body for movement between a first position away from the face of said body and a second position covering said bore opening;
• a resilient seal dimensioned to seal said bore opening when said cover is in said second position, said seal including a peripheral skirt, a base and a flat face portion;
• and
• a retainer pin extending from said cover and securing said seal to said cover, said retainer pin adapted to engage and retain a plug member body having a tubular nipple when the nipple extends into the passage.