Lid closure system
Assignee3L Filters Ltd.
InventorsGeorge T. Foss, Frank E. Heywood, William M. Maser
Life of this patent
Estimating the term…
Abstract
A pressurized vessel having a quick release lid closure system for clamping a vessel lid to a vessel container comprises an open hoop with spaced apart ends. The hoop carries a plurality of spaced apart clamped blocks which having wedge-shaped channels for mating engagement with opposing lugs on the lid and container. The spaced apart hoop ends are pulled towards one another to reduce the circumference of the hoop to move the clamp blocks onto the corresponding lugs and draw the lugs together to seal the lid to the container.
Claims27
A pressurized vessel having a quick release lid closure system for clamping a vessel lid to a vessel container,
- i) said lid having about its perimeter a plurality of circumferentially spaced apart lid lugs, said container having about its opening perimeter a corresponding number of opposing circumferentially spaced apart container lugs, said lid lugs and container lugs defining sets of opposing lugs, said opposing lugs having sloped faces which define a truncated wedge narrowing outwardly from said vessel, said wedge having a gap defined between said opposing lid lugs and container lugs, a compression seal provided between said lid and container for sealing said vessel when said lid is closed,
- ii) said closure system comprising an open hoop with spaced apart ends, said hoop carrying a plurality of spaced apart clamp blocks corresponding in number to said plurality of lug sets, each said clamp block having a truncated wedge shaped channel for mating engagement with said truncated wedge of a corresponding lug set,
- iii) means for pulling said spaced apart hoop ends towards one another to reduce the circumference of the hoop to move said clamp blocks onto corresponding said wedges and by virtue of said mating engagement of said clamp blocks with said wedges, drawing said opposing lugs together to close said gap and to seal said lid to said container by compressing said compression seal.
A method for opening said closure system including said quick connect/disconnect mechanism of claim 23 comprising:
- i) moving said safety mechanism from the closed position to the open position;
- ii) operating said pulling means in an opening direction until said hoop tension has been relieved
- iii) disconnecting said quick connect/disconnect mechanism.
A pressurized vessel having a quick release lid closure system for clamping a vessel lid to a vessel container,
- i) said vessel lid and/or said vessel container having a plurality of spaced apart first components of said lid closure system,
- ii) a hoop positioned about said vessel and located opposite said first components of said lid closure system, said hoop carrying a corresponding plurality of a second component of said lid closure system, said plurality of said second components being aligned with said first components, said hoop having spaced apart ends,
- iii) means for pulling said hoop spaced apart ends towards one another to move said second components onto said first components to an extent which clamps said lid to said container, said pulling of said hoop ends towards one another exerting an inwardly radially directed force of said second components on said first components;
- and
- wherein said first component is a lug provided on said lid and said second component is a swing lug pivotally mounted on said vessel, said hoop carrying said swing lugs to pivot them towards and move said lid lugs to draw said lid closed on said container when said means pulls said hoop ends towards one another.
Dependencies are inferred from the claim text.