Patent · US Expired

Retaining device for a block or suction element

US6855042B1 · kind B1 · utility

4Cited by

4References

4Claims

0Family size

Assignee

Wernicke LLC · DE

Inventors

Ralf Werner · Hilden, DE
Fritz Kotting · Dormagen, DE

Key dates

Filing date	Oct 30, 2000
Grant date	Feb 15, 2005
Priority date	—
Expiry date	Oct 7, 2021

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB24B13/005
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

Retaining device (1) for a block or suction element (10) in a centering device for spectacle lenses, having a support, which has a longitudinal axis (2), having a spherically dome-shaped bearing surface (3) on the support, having a spherical dome (5), which is mounted cardanically on the support and is complementary to the bearing surface, having a holding element (6) in the spherical dome for the block or suction element with a contact surface (11) for the spectacle lens, and having a radius (R) of the bearing surface and of the spherical dome, the mid-point (M) of which is located on the longitudinal axis of the support (1) on the contact surface for the spectacle lens.

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