发明名称 SPLIT COMPRESSION PISTON
摘要 In a spring piston airgun, a compression piston is provided for longitudinal translation within a compression tube in response to a motive force. The compression piston includes a main piston body and a piston head, wherein the piston body and piston head are coupled for partial independent translation along a longitudinal axis. A resilient compressible bushing is longitudinally intermediate a portion of the piston body and the piston head, such that upon a deceleration of the piston head, the piston body is not immediately acted upon by the deceleration, rather the bushing absorbs a portion of the deceleration and radially expands to contact the compression tube.
申请公布号 US2014331855(A1) 申请公布日期 2014.11.13
申请号 US201414148409 申请日期 2014.01.06
申请人 Crosman Corporation 发明人 Hanson, P.E. Jeffrey
分类号 F16J1/00 主分类号 F16J1/00
代理机构 代理人
主权项 1. An apparatus comprising: (a) a barrel; (b) a compression tube having transfer port fluidly connected to the barrel; (c) a compression piston at partially disposed within the compression tube and moveable within the compression tube between a first position and a second position, the compression piston having piston body and a piston head; (d) a seal connected to the piston head and forming a sealed interface with an inside surface of the compression tube; and (e) a radially expandable bushing connected to the piston body, the bushing radially expanding in response to a longitudinal compressive force on the bushing, the radial expansion sufficient to contact the inside surface of the compression tube.
地址 Bloomfield NY US