Class 109/87 - Floor bridges

Subclass of Class 109 - Safes, bank protection, or a related device
Definition: Devices comprising movable or removable floor sections for
No. of patents: 4
Last issue date: 07/11/2006

Number	Title	Issue Date
7073584	Processes for incorporating inert gas in a cement composition containing spherical beads The present invention provides a process for forming cement in a well bore. In this process, a cement composition is formed that comprises a cement and one or more beads mixed with the cement. The cement composition containing the beads is displaced into the well bo...	07/11/2006
5615622	Security module A security system including a security module positioned so that personnel traveling from a first zone to a second zone pass through the module for identification and verification of access. The module includes a card reader on one wall for reading an ide...	04/01/1997
5400722	Security module A security system including a security module positioned so that personnel traveling from a first zone to a second zone pass through the module for identification and verification of access. The module includes a card reader on one wall for reading an ide...	03/28/1995
4826264	Security closure A domestic security closure in a form of a cabinet having a front opening (9) defined at the top of a framework (2) partially embedded in the floor and providing a guide for a pair of rigid steel doors (10,12) which can be lifted by use of a counter-weigh...	05/02/1989

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