초록 ▼

A pump assembly is described for use in the field of workstation design. The pump assembly is described for use in combination with a chair back having an expandable fluid bladder for lumbar support. The pump assembly allows a person, while seated, to more easily inflate or deflate an expandable flu

A pump assembly is described for use in the field of workstation design. The pump assembly is described for use in combination with a chair back having an expandable fluid bladder for lumbar support. The pump assembly allows a person, while seated, to more easily inflate or deflate an expandable fluid bladder. An actuator for inflating and deflating the expandable fluid bladder is also described.

대표청구항 ▼

[ What is claimed is:] [1.]1. A pump assembly in combination with a chair back having an expandable fluid bladder for lumbar support, said expandable fluid bladder being inflatable and deflatable by a person seated in a chair which includes as one component said chair back, comprising:pump means in

[ What is claimed is:] [1.]1. A pump assembly in combination with a chair back having an expandable fluid bladder for lumbar support, said expandable fluid bladder being inflatable and deflatable by a person seated in a chair which includes as one component said chair back, comprising:pump means in fluid communication with the expandable fluid bladder for transferring fluid into the expandable fluid bladder, said expandable fluid bladder being located in the chair back;an actuator being located substantially adjacent the pump means, the actuator in intermittent contact with the pump means to engage the pump means to transfer fluid into said expandable fluid bladder;valve means being located substantially adjacent the actuator, the valve means functionally adapted to release fluid from said expandable fluid bladder based on contact with said actuator, the valve means having a first end, a second end, and a fluid release, the first end of the valve means connected to the pump means;tubing, the second end of the valve means connected to the expandable fluid bladder by the tubing, the actuator contacting the fluid release to release fluid from said expandable fluid bladder;a biasing means adapted to resist the actuator's contacting the fluid release, the biasing means having a clip, the clip having a top side and a bottom side, the clip having a first end and a second end, the biasing means having a first post connected to the chair back, said first post contacting the top side of the first end of the clip the biasing means having a second post connected to the chair back, the second post contacting the bottom side of the clip at a location on the clip between the first end and the second end of the clip, and the biasing means having a third post located on the actuator, the third post contacting the top side of the second end of the clip, the clip being connected to each post to bias the actuator in a direction away from the valve means.