The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 01, 1994
Filed:
Dec. 30, 1992
Bengt I Baversten, Simsbury, CT (US);
Rolf Petersson, Vaster.ang.s, SE;
Combustion Engineering, Inc., Windsor, CT (US);
Abstract
An auxiliary platform has a one-ton hoist which may be used in conjunction with a rigid pole handling system. The positioning of the one-ton hoist, as well as the positioning of a trolley on which the hoist is mounted and the positioning of the platform, is centrally controlled at a control panel. In one embodiment, a new set of tracks are provided on either side of a refueling pool. A pair of cavity platforms are installed over the edges of the reactor cavity to receive the new set of tracks and to thereby allow the auxiliary platform to travel over the reactor cavity. In another embodiment, the existing tracks are extended and a single new track is provided between the equipment pool and the reactor pressure vessel head pedestal and spent fuel cask washdown area. The auxiliary platform is made extendable so that it can travel over the width of the existing tracks and also over width defined by the new track and one of the existing tracks. The auxiliary platform can work independently of the refueling platform on a separate task or can aid the refueling platform in performing a single task. The auxiliary platform can both shorten the critical path time and reduce the exposure of radiation to workers.