Brakes – Internal-resistance motion retarder – Including seal or guide
Reexamination Certificate
2007-05-29
2007-05-29
Nguyen, Xuan Lan (Department: 3683)
Brakes
Internal-resistance motion retarder
Including seal or guide
C267S137000, C267S064120
Reexamination Certificate
active
10473829
ABSTRACT:
A gas spring (7) comprises a cylinder main body (20); a rod member (21) slidable to cylinder main body; a gas filled chamber (23) filled with compressed gas and urging the rod member in a first direction; a rod inserting hole (32) inserting the rod member (21); an annular collar (24) slidable on the rod member at a position apart from the rod inserting hole in the second direction opposite to the first direction; an annular groove (24a) on the annular collar which is open toward the second direction; and a lock ring (26) engaging with an annular ring mounting groove (25) on the rod member (21). In assembling, the lock ring (26) is moved in the first direction together with the rod member, to thus engage with the annular groove (24a) on the annular collar, so that the annular collar for stopping the rod member and the lock ring is stopped by an end wall of the cylinder main body.
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Microfilm of the specification and drawings annexed to the request of Japanese Utility Model Application No. 92791/1973 (Laid-open No. 36992/1975) (Hiroaki Hideyoshi) Apr. 17, 1975, (Family: None).
Microfilm of the specification and drawings annexed to the request of Japanese Utility Model Application No. 107478/1981 (Laid-open No. 12741/1983) (Tokico Ltd.), Jan. 26, 1983, (Family: None).
Microfilm of the specification and drawings annexed to the request of Japanese Utility Model Application No. 62643/1972 (Laid-open No. 19171/1974) (Nissin Electric Co., Ltd.), Feb. 18, 1974, (Family: None).
Jordan and Hamburg LLP
Nguyen Xuan Lan
Pascal Engineering Corporation
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