×

Drug pump including pressure plate and tube

  • US 5,658,252 A
  • Filed: 01/12/1996
  • Issued: 08/19/1997
  • Est. Priority Date: 11/22/1993
  • Status: Expired due to Term
First Claim
Patent Images

1. A pressure plate for a pump comprising:

  • (a) a base having a main surface; and

    (b) a plurality of ribs having a top surface, a bottom surface and an angled surface between the top surface and bottom surface forming an angle between the bottom surface and angled surface, the bottom surface of each rib being attached to the main surface of the base such that the angled surface of each rib is oppositely disposed from the angled surface of another rib so that a truncated V-shaped channel is formed between each pair of oppositely disposed ribs.

View all claims
  • 6 Assignments
Timeline View
Assignment View
    ×
    ×