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US 2014/0174851 A1Published application
Stair System for Oilfield Tank
AssigneeWichita Tank Manufacturing, Ltd.
InventorTheron Jim Kennedy
Life of this patent
Estimating the term…
Abstract
A mobile oilfield storage tank includes a wall and a stair system securely coupled to the wall. The stair system a platform suitable for use as a walkway and a platform extension pivotally engaged with the platform. The platform extension pivots from a folded position to an extended position and creates a continuous walkway between the platform and a platform of an adjacent mobile oilfield storage tank.
Claims20
A mobile oilfield storage tank, comprising:
- a wall;
- and
- a stair system securely coupled to the wall, the stair system having:
- a platform suitable for use as a walkway;
- and
- a platform extension pivotally engaged with the platform;
- wherein the platform extension pivots from a folded position to an extended position;
- and
- wherein the platform extension creates a continuous walkway between the platform and a platform of an adjacent mobile oilfield storage tank.
6 more elements
A mobile oilfield storage tank, comprising:
- a wall;
- and
- a stair system securely coupled to the wall, the stair system having:
- a platform suitable for use as a walkway;
- and
- a platform extension attached to the platform about a joint that allows the platform extension to swivel relative to platform from a stored position to an extended position;
- and
- wherein the platform extension creates a continuous walkway between the platform and a platform of an adjacent mobile oilfield storage tank.
5 more elements
A mobile oilfield storage tank, comprising:
- a wall;
- and
- a stair system securely coupled to the wall, the stair system having:
- a platform suitable for use as a walkway;
- and
- a first platform extension slidingly secured to the platform;
- a second platform extension slidingly secured to the first platform extension;
- wherein the first platform extension and the second platform extension creates a continuous walkway between the platform and a platform of an adjacent mobile oilfield storage tank.
5 more elements
Dependencies are inferred from the claim text.