Anti-reversible power spring apparatus and method

In a shade system with a bracket supporting a shade storage roll, an anti-reversible power spring apparatus comprising:

• a storage roll with a hollow interior and at least one longitudinal feature in the interior of the storage roll;
• a housing with at least one feature on the outside of the housing conformed to engage the longitudinal feature in the interior of the storage roll the feature connecting the housing with the storage roll such that the housing is free to move along the longitudinal feature but the connection of the feature and the longitudinal feature causes the housing to move with the storage roll as the storage roll rotates and wherein the housing is comprised of two halves such that the housing may be opened up and biasing members added or removed from the inside of the housing and then the two halves reconnected and the housing closed;
• at least one biasing member within the housing wherein the biasing member includes a first end and a second end wherein the second end is connected with the housing and moves with the housing as the storage roll rotates and wherein the first end is held stationary with reference to the storage roll when the storage roll rotates in one direction but not when the storage roll rotates in a second direction;
• and
• a support for the at least one biasing member and the housing wherein the support is connected with the bracket and does not move when the storage roll moves and wherein the support includes a protrusion that holds the first end of the biasing member against movement when the storage roll is rotated in the one direction but which allows passage of the first end over and past the protrusion when the storage roll is rotated in the second direction.

In a shade system with a bracket supporting a shade storage roll, an anti-reversible power spring method comprising:

• providing a storage roll with a hollow interior and at least one longitudinal feature in the interior;
• a housing with at least one feature on the outside of the housing conformed to engage the longitudinal feature in the interior of the storage roll the feature connecting the housing with the storage roll such that the housing is free to move along a length of the longitudinal feature but the connection of the feature and the longitudinal feature causes the housing to move with the storage roll and wherein the housing is comprised of two halves such that the housing may be opened up and biasing members added or removed from the inside of the housing and then the two halves reconnected and the housing closed;
• at least one biasing member within the housing wherein the biasing member includes a first end and a second end wherein the second end is connected with the housing and moves with the housing as the storage roll rotates and wherein the first end is held stationary with reference to the storage roll when the storage roll rotates in one direction but not when the storage roll rotates in a second direction;
• and a support for the at least one biasing member and the housing wherein the support is connected with the bracket and does not move when the storage roll moves and wherein the support includes a protrusion that holds the first end of the biasing member against movement when the storage roll is rotated in the one direction but which allows passage of the first end over and past the protrusion when the storage roll is rotated in the second direction;
• and
• moving the storage roll.