Patent · US Expired

Cylindrical mounting with clearance-free fit

US4738512A · kind A · utility

7Cited by

3References

6Claims

0Family size

Assignee

Ernst Leitz Wetzlar, GmbH · DE

Inventors

Rudi Faatz · Heuchelheim, DE
Friedrich Kolb · Wetzlar, DE
Joachim Kuehn · Aßlar, DE
Walter Mehl · Aßlar, DE
Siegfried Moeller · Rottweil, DE
Klaus Rannow · Solms, DE
Andreas Reich · Buxheim, DE
Adolf Steuernagel · Wetzlar, DE

Key dates

Filing date	Sep 4, 1986
Grant date	Apr 19, 1988
Priority date	—
Expiry date	Sep 4, 2006

Classification

Technology area (CPC G)Physics
CPC primaryG03B17/14
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The clearance-free fit for cylindrical mountings, in particular photographic lenses, is produced by recesses in the inner wall of a main mounting and projections in the outer wall of an individual mounting, to be fastened in the main mounting by inserting and by a relative rotary movement between the two mountings. The recesses and the projections are of such a configuration that a sufficiently large clearance s is present when the individual mounting is inserted, and this clearance is removed by turning to produce a frictional connection.

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