Hinged waterbox cover

US11635265B2 · kind B2 · utility

Assignee

• TRANE INTERNATIONAL INC. · US

Inventors

• Steven E. Wolfgram · La Crosse, US
• Daoud A. Jandal · Kewaunee, US
• Bradley S. Wickersham · La Crosse, US
• Fred Eickstaedt · La Crosse, US
• James M. McCool · La Crescent, US
• Raymond S. Schafer · Holmen, US
• Ronald E. Schlicht · La Crosse, US
• Robert A. Harris · Akron, US
• Steven E. Meloling · La Crosse, US
• Raghu Kumar · Kanchinakote, IN
• Kishore Prabakaran · Kanchinakote, IN

Key dates

• Filing date: Feb 4, 2019
• Grant date: Apr 25, 2023
• Expiry date: Nov 28, 2041

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49963
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

A bolted hinge assembly is provided for a waterbox cover (a “waterbox hinge assembly”). The waterbox hinge assembly generally does not require welding on the waterbox cover or the heat exchanger in an HVAC system (“HVAC unit” hereinafter). Further, the waterbox hinge assembly may be installable to the HVAC unit without removing the heat exchange fluids (e.g., water, refrigerant, etc.) from the HVAC unit. In some cases, the waterbox hinge assembly can be installed on an HVAC unit without removing any bolts from the waterbox cover. Once installed, the waterbox hinge assembly can be left in place so that it can be reused anytime the HVAC unit is serviced.