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Vacuum pipette for gripping electrical components by suction
   
Document Number
US Patent 7000311
Issued Date
February 21, 2006
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Abstract
A vacuum pipette has a filter grid that is shifted into its extended interior and whose cross section is considerably greater than the cross section of an end-side suction opening. The gaps formed in the filter grid can be so narrow that even very small components are reliably retained. Nevertheless, the entire passage cross section available is considerably greater than in the case of a filter grid arranged at the end side. As a result, favorable suction forces are generated under constant suction conditions.
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Number of Claims:
4
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Published
February 21, 2006
Application Number
10/129,803
Filed
November 6, 2000
US Classification
29/743   29/740 29/741 29/742 294/64.1
Int'l Classification
B23P   19/00   (20060101)  
Assistant Examiner
Attorney/Law Firm
Priority Data
Nov 09, 1999 [DE] 199 53 881
USPTO Field of Search
29/739   29/740   29/741   29/742   29/743   901/40   414/737   414/752   294/2   294/64.1  
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