Patents Assigned to McAlpine & Co Limited
  • Non-return device
    Patent number: 9567737
    Abstract: A non-return device (10) for use with a waste trap is described. The non-return device comprises a sealing portion (12) having first and second sheet members (14, 16), a device inlet (18), a device outlet (20) and a transition portion (22) providing fluid communication between the device inlet and the sealing portion. The transition portion has a convex section of wall (24).
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: February 14, 2017
    Assignee: MCALPINE & CO LIMITED
    Inventors: James Edward McAlpine, James Kenneth McAlpine
  • Outlet for a Sanitary Unit
    Publication number: 20140130899
    Abstract: A fitting (10) for a sanitary unit outlet (5) has a tubular housing (12) having an inlet (14) and an outlet (16), a grid (18) associated with the housing inlet (14) and a one-way valve (20) associated with the housing outlet (16). The housing (12), grid (18) and one-way valve (20) are configured so as to be removable from the sanitary unit outlet (5) as a single entity to permit, for example, the one-way valve (20) to be replaced.
    Type: Application
    Filed: March 1, 2012
    Publication date: May 15, 2014
    Applicant: MCALPINE & CO LIMITED
    Inventor: James Edward McAlpine
  • NON-RETURN DEVICE
    Publication number: 20130000766
    Abstract: A non-return device (10) for use with a waste trap is described. The non-return device comprises a sealing portion (12) having first and second sheet members (14, 16), a device inlet (18), a device outlet (20) and a transition portion (22) providing fluid communication between the device inlet and the sealing portion. The transition portion has a convex section of wall (24).
    Type: Application
    Filed: November 23, 2010
    Publication date: January 3, 2013
    Applicant: MCALPINE & CO LIMITED
    Inventors: James Edward McAlpine, James Kenneth McAlpine
  • Air gap cover
    Patent number: D620584
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: July 27, 2010
    Assignee: McAlpine & Co Limited
    Inventor: James Kenneth McAlpine