SIDE LOAD CARRIER AND BALANCE SYSTEM FOR WINDOW SASHES
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United States of America Patent
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Issued Date -
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app pub date -
Oct 19, 2010
filing date -
Oct 1, 2008
priority date (Note) -
Abandoned
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Abstract
The carrier is securable to the end of a window balance, including, but not limited to, spiral rod, extension spring, and block and tackle balances. The weight of the sash is borne by a sash assembly coupling portion of the carrier. The upward force exerted by the balance on the carrier during opening or closing of the sash is translated into a force urging the carrier toward the sash, until contact is made between the carrier assembly and the side of the sash. The translation of the upward force into a side-directed force eliminates or substantially reduces the friction that might otherwise have been created between the carrier and a carrier channel in the jamb. The side-directed force preferably removes the carrier from any contact with a carrier channel, thereby eliminating friction from the carrier rubbing against the carrier channel and even eliminating the need for a carrier channel.
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