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A convertible wagon adaptable from an extending use position to a collapsed storage position. The wagon has a telescopically extensible center portion that slidably secures and separates oppositely disposed end enclosure portions. A telescopically extensible handle is provided for deployment when in

A convertible wagon adaptable from an extending use position to a collapsed storage position. The wagon has a telescopically extensible center portion that slidably secures and separates oppositely disposed end enclosure portions. A telescopically extensible handle is provided for deployment when in use configuration allowing for directional mobility of the wagon by the user.

대표청구항 ▼

A convertible wagon adaptable from an extending use position to a collapsed storage position. The wagon has a telescopically extensible center portion that slidably secures and separates oppositely disposed end enclosure portions. A telescopically extensible handle is provided for deployment when in

A convertible wagon adaptable from an extending use position to a collapsed storage position. The wagon has a telescopically extensible center portion that slidably secures and separates oppositely disposed end enclosure portions. A telescopically extensible handle is provided for deployment when in use configuration allowing for directional mobility of the wagon by the user. second seal comprising an annular seal surface extending in the plane passing through the shaft, wherein the second seal is connected to and coaxial with the shaft, wherein the annular seal surface of the second seal sealingly abuts the annular seal surface of the first seal, the second seal further comprising a circumferential surface that extends in an annular coaxial recess of the shaft wherein the shaft recess is delimited by an inner circumferential surface of the shaft such that an annular gap is formed between the shaft and the circumferential surface of the second seal; a holding member comprising a circumferential surface, wherein the holding member is attached to the second seal so as to form a joint, the holding member further comprising an outer circumferential groove; and an elastic sealing ring arranged in and operable to seal the annular gap, wherein the sealing ring extends over the circumferential surface of the holding member and covers the joint, the sealing ring further comprising a radially inwardly extending portion arranged in the groove. 7. The seal according to claim 6, wherein the sealing ring has a P-shaped cross-section comprising a head and a leg, wherein the head of the P is arranged in the circumferential groove. 8. The seal according to claim 6, wherein the circumferential surface of the second seal axially extends to the circumferential surface of the holding member. 9. The seal according to claim 6, wherein the holding member further comprises a portion that surrounds a portion of the second seal and axially extends a distance along the second seal, wherein the second seal is attached to the surrounding portion of the holding member. 10. The seal according to claim 6, wherein the second seal is attached to the holding member by shrinking, hard soldering or gluing the holding member onto the second seal. 11. A seal operable to seal between a shaft and a passage through a wall, the seal comprising: an annular radially symmetrical first seal comprising an annular seal surface extending in a plane passing through the shaft, wherein the first seal is coaxial with and surrounds the shaft, wherein the first seal is connected to the wall; an annular radially symmetrical second seal comprising an annular seal surface extending in a plane passing through the shaft, wherein the second seal is connected to and coaxial with the shaft, wherein the annular seal surface of the second seal sealingly abuts the annular seal surface of the first seal, the second seal further comprising a circumferential surface that extends in an annular coaxial recess of the shaft wherein the shaft recess is delimited by an inner circumferential surface of the shaft such that an annular gap is formed between the shaft and the circumferential surface of the second seal, the second seal further comprising an L-shaped cross-section comprising a first axially extending leg and a second radially extending leg; a holding member comprising a circumferential surface, wherein the holding member is attached to the second seal so as to form a joint, the holding member further comprising a portion that surrounds a portion of the second seal and axially extends a distance along the second seal, wherein the surrounding portion of the holding member is complementary to the L-shaped cross-section and extends inwardly on an upper side of the second leg, and wherein the second seal is attached to the surrounding portion of the holding member; an elastic sealing ring arranged in and operable to seal the annular gap, wherein the sealing ring extends over the circumferential surface of the holding member and covers the joint. 12. A pump, comprising: a housing including a wall that forms a chamber, the housing also including a hole in the wall; at least one rotary pump shaft that extends through the hole in the wall of the housing; a pump element fixedly connected to the pump shaft; and a seal according to claim 1 arranged between