Quick disconnect nozzle assembly

A quick disconnect nozzle assembly comprising

• a nozzle body,
• a spray nozzle tip,
• said tip and body each having an internal bore for the axial passage of fluid therethrough,
• an annular, non-metallic, resilient sealing and pressure exerting member interposed between said tip and body,
• said nozzle tip and body having cooperating camming means for causing said tip and body to be axially drawn together in response to rotation of said tip relative to said body for pressing said tip and body into predetermined sealing engagement with said annular sealing member,
• said tip and body having sealing member engaging surfaces for exerting compressive forces on said annular sealing member in three different directions for simultaneously compressing said sealing member both axially and radially in response axial drawing together of said tip and body,
• said tip and body member having engageable means for limiting rotational movement of said tip relative to said body and hence axial drawing movement of said tip relative to said body for establishing a fixed relationship between said tip and body sealing member engaging surfaces and a predetermined compressive loading between said sealing member and said tip and body sealing member engaging surfaces, and
• said tip and body each having integrally formed cooperating means for retaining said tip and body in axially drawn together fixed relationship without separate auxiliary fastening means.

A quick disconnect nozzle assembly comprising

• a nozzle body,
• a spray nozzle tip,
• said tip and body each having an internal bore for the axial passage of fluid therethrough,
• an annular, non-metallic, sealing and pressure exerting member interposed between said tip and body,
• said nozzle tip and body having cooperating camming means for causing said tip and body to be axially drawn together in response to rotation of said tip relative to said body for pressing said tip and body into predetermined sealing engagement with said annular sealing member,
• said tip and body having seal member engaging surfaces for simultaneously exerting compressive forces on said annular sealing member in both axial and radial directions in response to axial drawing together of said tip and body,
• said tip and body member having engageable means for limiting rotational movement of said tip relative to said body and hence axial drawing movement of said tip into said body for establishing a fixed relationship between said tip and body sealing member engaging surfaces and a predetermined compressive loading on said sealing member and said tip and body sealing member engaging surfaces, and
• said tip and body each having integrally formed cooperating means for retaining said tip and body in axially drawn together fixed relationship without separate auxiliary fastening means.

A quick disconnect nozzle assembly comprising

• a nozzle body member,
• a removable spray tip member,
• said body and tip members being formed with bores for the passage of fluid therethrough,
• one of said members being formed with an internal chamber and the other of said members having an end portion positioned into said chamber,
• a first annular sealing member disposed within said chamber in interposed relation between said tip and body members for establishing a first seal therebetween,
• a second annular sealing member disposed about said other member for effecting a second seal between said tip and body members,
• said first and second seals creating a sealed chamber area between said members isolated from fluid passing through said fluid passageway bores, and
• said tip and body members having cooperating camming means in said sealed chamber area for causing said tip and body members to be drawn axially together in response to rotational movement of said tip member relative to said body member for pressing said tip and body members into predetermined sealing engagement with said first annular sealing member.

A quick disconnect nozzle assembly comprising

• a nozzle body,
• a spray nozzle tip,
• an annular sealing member interposed between said tip and body,
• said nozzle tip and body having cooperating camming means for causing said tip and body to be axially drawn together in response to rotation of said tip relative to said body for pressing said tip and body into predetermined sealing engagement with said annular sealing member, said camming means including camming lugs on one of said tip and body and camming lug receiving slots in the other of said tip and body,
• said nozzle tip and body having radially cooperating detent means actuatable in response to rotation of said tip relative to said body for retaining said tip in sealing engagement with said annular sealing member without affecting the force of engagement of said spray tip and body on said annular sealing member,
• said detent means including detent lugs on one of said tip and body and pairs of arcuate surfaces on the other of said tip and body, said pairs of arcuate surfaces each defining a detent lug receiving groove for receiving one of said detent lugs and retaining said tip and body in sealing engagement with said annular sealing member, and one of said arcuate surfaces of each said pair being defined by a flexible wall adapted to permit passage of said detent lugs and the other of said arcuate surfaces of each pair being relatively rigid and adapted for preventing passage of said detent lugs.

A quick disconnect nozzle assembly comprising

• a nozzle body member,
• a removable spray tip member,
• said body and tip members being formed with bores for the passage of fluid therethrough,
• one of said members being formed with an internal chamber and the other of said members having an end portion positioned into said chamber,
• a first annular sealing member disposed within said chamber in interposed relation between said tip and body members for establishing a first seal therebetween,
• a second annular sealing member disposed about said end portion for effecting a second seal between said tip and body members,
• said first and second seals creating a sealed chamber area between said members isolated from fluid passing through said fluid passageway bores,
• said tip and body members having cooperating camming means in said sealed chamber area for causing said tip and body members to be drawn axially together in response to rotational movement of said tip member relative to said body member for pressing said tip and body members into predetermined sealing engagement with said first annular sealing member, and
• said tip member being formed with an annular outer peripheral flange upon which said second sealing member is mounted in a stretched condition, said body member having a forward annular end positioned about an upstream end portion of said tip member portion, and said flange having an outwardly and forwardly tapered ramp upon which said second sealing member is mounted for causing said second sealing member to be drawn into sealing engagement with said forward annular end of said body under the stretching force of said second annular sealing member.