Patent · US Active

Electromagnetic Opening Device for safe deposit box

US10287802B2 · kind B2 · utility

0Cited by

6References

7Claims

0Family size

Assignee

SUZHOU JINLIN METAL CO., LTD · CN

Inventors

Andrew Liu · San Carlos, US
Smith Chen · Suzhou, CN

Key dates

Filing date	Dec 5, 2014
Grant date	May 14, 2019
Priority date	—
Expiry date	Jan 11, 2036

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE05B2047/0093
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

An electromagnetic opening device comprises a housing, a fixed iron core, a movable iron core having a bottom end engaging with the fixed iron core, a shaft sleeve that sleeves a top end of the movable iron core and extends outside of the housing, and an electromagnetic coil, and a vibration sensing mechanism comprising a sensing block having a rotation shaft, a stopping end and a balancing end located on two sides of the movable iron core. A bottom of the stopping end is rotationally connected onto the housing through the rotation shaft. When the sensing block compresses a balance spring disposed between the balancing end and the housing through the rotation of the rotation shaft, the stopping end abuts against the shaft sleeve. The vibration sensing mechanism effectively prevents a mistaken shrinkage of the shaft sleeve of the movable iron core and abnormally opening of a safe deposit box.

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