Patents Assigned to Thomas Hunter Limited
  • Container closure
    Patent number: 4448325
    Abstract: The closure includes a pressure equalization element which can be manipulated to expose an aperture (17) in the closure (10) and thereby allow pressure in the headspace of the container to adjust to ambient pressure. The element has an upper member (21a) which overlies the aperture and a lower member (21b) adhered to the underside of the closure so as to lie beneath the aperture and which is connected by a connecting member (27) to the upper member.
    Type: Grant
    Filed: July 12, 1982
    Date of Patent: May 15, 1984
    Assignee: Thomas Hunter Limited
    Inventors: Cyril K. Edwards, Edward H. Webb
  • Closure caps
    Patent number: 4119233
    Abstract: In convention lug caps or pre-threaded caps to be screwed onto a threaded neck ring of a bottle or jar, it sometimes happens that the lugs or threads become hooked under the threads during application of the cap. This can lead to damage to the lugs or threads and failure of the closure. According to the invention, a lug cap or pre-threaded cap is provided with a formation such as a wall to prevent the cap being applied to the neck of the bottle when such hooking is threatened.
    Type: Grant
    Filed: February 15, 1977
    Date of Patent: October 10, 1978
    Assignee: Thomas Hunter Limited
    Inventors: Cyril Kenneth Edwards, Edward Harry Webb