Test tube holder insert
US5985219A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 5, 1997 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Dec 5, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L9/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A unitary test tube holder insert adapted for receiving test tubes. The insert has a first ring to be secured in a hole of a test tube rack. A plurality of spring members extend at one end from the first ring towards a center axis of the ring to resiliently engage the outside of a test tube inserted into the insert. The spring members are connected at their other end to a second ring which is arranged coaxially with the first ring along the center access, and each spring member is curved towards the center axis to exhibit a straight section which extends parallel to the center axis and which resiliently engages the outside of a test tube inserted into the insert.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.