05137693 is referenced by 72 patents and cites 14 patents.

The test tube holder includes an elongated tubular member which supports a pivot member and receives a removable adapter member. The adapter member accommodates a test tube and can be interchanged with another adapter member that accommodates a different size test tube. Biasing springs are provided in the adapter member to hold the test tube therein. The biasing force of the biasing springs against the test tube is predetermined to permit easy insertion and removal of the test tube from the adapter member. The test tube holder which includes the adapter member can be joined to other similar test tube holders in a manner which permits relative pivoting and tilting of one test tube holder with respect to another test tube holder. The test tube holder further includes a detent arrangement for inseparably detenting the adapter member in the tubular member when a test tube is present in the tubular member. Removal of the test tube from the test tube holder enables the adapter member to be separated from the tubular member.

Title
Spring biased test tube holder
Application Number
7/559366
Publication Number
5137693
Application Date
July 30, 1990
Publication Date
August 11, 1992
Inventor
James A Mawhirt
Brooklyn
NY, US
Agent
Rodman & Rodman
Assignee
Miles
IN, US
IPC
B01L 9/06
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