Patent · US Expired

Apparatus and method for determining the concentration of a component of a sample

US6635167B1 · kind B1 · utility

348Cited by
27References
57Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 21, 2000
Grant dateOct 21, 2003
Priority date
Expiry dateNov 21, 2020

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E60/10
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

An instrument (20) has a well (28a-b) for receiving a dry cell (75), an opening (78) through which a first connector (74) is exposed to the well (28a-b), and a boss (76) adjacent the opening (78). The boss (76) precludes the wrong terminal of the dry cell (75) from engaging the first connector (74) when the dry cell (75) is inserted into the well (28a-b) in incorrect orientation. A second connector (80) includes a base (81), a first leg (82) resiliently connected to and extending away from the base portion, a second leg (84) resiliently connected to and extending away from the first leg (82), and a third leg (86) resiliently connected to and extending away from the second leg (84) and toward the first leg (82). A display (42) for the instrument (20) has a lens (90) having a substantially transparent substrate with a polyurethane coating. The instrument housing has first and second portions. At least one locator pin (30) extends from one (24) of the housing portions and at least one complementary socket (32) extends from the other (22) of the housing portions for receiving the pin (30) to maintain the first (22) and second (24) portions in assembled orientation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.