公开(公告)号：US3861304A

公开(公告)日：1975-01-21

申请号：US37445373

申请日：1973-06-28

Applicant: BERNSTEIN DANIEL A

Inventor： MERRILL ROBERT E

IPC: B30B1/00 ,  B30B1/32

CPC classification number: B30B1/003

Abstract: A pressure actuator is provided having a stationary plate and a floating plate for holding an element under compression and a base plate separated from said floating plate by a flexible conduit which defines an inner chamber intermediate said floating and base plates. The conduit is comprised of at least one solid member or track, usually two, which defines an enclosure or ring. Depending on the number of tracks one or two elastomeric bands are employed. The edges of the elastomeric band(s) fit into grooves in the tracks to form a continuous conduit, which has a port for pressurizing. With the continuous conduit intermediate the floating and base plates, a significant portion of the surface of the elastomeric sheet or sheets is in contact with the plates. When a work product is introduced between the stationary and floating plates, the conduit is pressurized with a fluid, defining an hermetically sealed chamber which is also pressurized, at a pressure lower than the pressure in the conduit, to provide a uniform work force against the work product. The pressure actuator finds particular use in pressure applications which require high, uniform force to be applied to the work. When the element is to be released, the pressure in the chamber and conduit is released, lowering the element out of engagement with the upper restraining plate.

Abstract translation: 压力致动器设置有固定板和用于保持压缩元件的浮动板和通过限定在所述浮动板和底板之间的内室的柔性导管与所述浮动板分离的底板。 导管由至少一个实心构件或轨道组成，通常为两个，其限定外壳或环。 取决于轨道的数量使用一个或两个弹性带。 弹性体带的边缘装配在轨道中的凹槽中以形成连续导管，其具有用于加压的端口。