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US 8,893,853 B2Granted
Stair system for oilfield tank
AssigneeWichita Tank Manufacturing, Ltd.
InventorTheron J. Kennedy
Life of this patent
Estimating the term…
Abstract
A mobile storage tank includes a wall, a platform secured to the wall, and a structure that provides ascending access to the platform. The structure is configured to transition between a retracted position and an extended position.
Claims18
A mobile storage tank, comprising:
- a wall;
- a conduit passing through the wall;
- a platform secured to the wall and positioned above the conduit, the platform forming a continuous platform for use as a walkway;
- a retractable platform extension operably associated with the platform, the retractable platform extension being configured to extend the continuous platform in a direction transverse to the wall such that the retractable platform extension provides walking access to a second platform of an adjacent second mobile storage tank;
- wherein the retractable platform extension is removably secured to the second platform;
- and
- an articulated structure operably associated with the platform;
- wherein the articulated structure provides ascending access to the platform;
- and
- wherein the articulated structure transitions between a retracted position and an extended position.
7 more elements
A mobile storage tank, comprising:
- a wall;
- a platform secured to the wall, the platform forming a continuous platform for use as a walkway;
- a retractable platform extension operably associated with the platform, the retractable platform extension being configured to extend the continuous platform in a direction transverse to the wall such that the retractable platform extension provides walking access to a second platform of an adjacent second mobile storage tank;
- wherein the retractable platform extension is removably secured to the second platform;
- an articulated staircase, having:
- a first section pivotally attached to the platform;
- and
- a second section movably secured to the first section;
- and
- a railing operably associated with the articulated staircase;
- wherein the articulated staircase provides ascending access to the platform;
- and
- wherein the articulated staircase transitions between a retracted position and an extended position.
10 more elements
A mobile storage tank, comprising:
- a wall;
- a conduit passing through the wall;
- a platform secured to the wall and positioned above the conduit;
- a retractable platform extension operably associated with the platform, the retractable platform extension being configured to extend the continuous platform in a direction transverse to the wall such that the retractable platform extension provides walking access to a second platform of an adjacent second mobile storage tank;
- wherein the retractable platform extension is removably secured to the second platform;
- an articulated structure, having:
- a first section movably secured to the platform;
- and
- a second section movably secured to the first section;
- and
- a movable railing;
- wherein the structure provides ascending access to the platform;
- and
- wherein the structure and the railing are both manipulated between a retracted position and an extended position.
11 more elements
Dependencies are inferred from the claim text.