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US 5,671,500 AGranted
Overhead door spring shield system
OwnerBrett Balkinventor
Life of this patent
Estimating the term…
Abstract
The invention relates to a design for covering and protecting an overhead door spring assembly from the coercive and deteriorating effects caused by the environment that overhead spring assembley's operate in. This includes preventing rust accumulation and deterioration of the spring assembly. The invention includes a tubular telescopic cover and bearing for a spring assembly that is water resistant and prevents rust from accumulating and dripping on vehicles below the door.
Claims11
An overhead door spring shield system comprising:
- a spring assembly including an elongated coiled spring having a fixedly held first end and a second end attached to an adjustable lock;
- a rod extending through a center bore of the coiled spring and pivotally attached on each end to a door frame mount, the adjustable lock being fixedly attached to the rod at a point so that the second end of the spring rotates with the rod when the door is opened or closed;
- a tubularly shaped spring protection cover having opposing first and second ends extending the substantial length of the spring assembly shielding it from exposure to airborne moisture, the length of the spring protection cover between the first and second ends being adjustable without requiring the removal of the protection cover from about the coiled spring;
- an anchor cap having an opening sized to fit over the first end of the spring protection cover;
- an access cap having an opening sized to fit over the second end of the spring protection cover;
- and
- bearing means attached to the access cap and defining a second opening in the access cap through which the rod passes to permit rotation of the rod relative to the access cap.
4 more elements
An overhead door spring shield system, comprising:
- a spring assembly including an elongated coiled spring having a fixedly held first end and a second end attached to an adjustable lock;
- a rod extending through a center bore of the coiled spring and pivotally attached on each end to a door frame mount, the adjustable lock being fixedly attached to the rod at a point so that the second end of the spring rotates with the rod when the door is opened or closed;
- a tubularly shaped spring protection cover having opposing first and second ends extending the substantial length of the spring assembly shielding it from exposure to airborne moisture;
- an anchor cap having an opening sized to fit over the first end of the spring protection cover;
- an access cap having an opening sized to fit over the second end of the spring protection cover;
- and
- bearing means attached to the access cap and defining a second opening in the access cap through which the rod passes to permit rotation of the rod relative to the access cap;
- where said spring protection cover includes a plurality of frictionally interlocking pieces of plastic.
5 more elements
An overhead door spring shield system, comprising:
- an elongated coiled spring having a first end attached to a first anchoring means for fixedly holding the first end of the spring stationary and a second end connected to an adjustable lock means, the spring being of suitable size and strength to function as part of an inner spring assembly serving as a counterbalance for opening and closing an overhead door;
- a rod extending through a center bore of the coiled spring and pivotally attached on each end to a door frame mount, the adjustable lock means being connected to the rod at a point between the two ends of the to secure the second end of the spring to the rod in a manner such that the rod is able to axially rotate in alternate directions at different times stretching when the door is opened and contracting when the door is closed;
- a tubularly shaped spring protection cover having opposing ends extending the substantial length of the spring and of sufficient size to house the coiled spring to thereby shield it from exposure to airborne moisture;
- an anchor cap sized to fit over one end of the spring protection tube and attached to the first anchoring means, the cap including an opening with diameter wide enough to permit passage of the rod through it;
- an access cap sized to fit over the opposing end of the spring protection tube, the cap including an opening with diameter wide enough to permit passage of the rod through it;
- and
- bearing means attached to the access cap and located at the opening in the access cap through which the rod passes to permit rotation of the rod relative to the access cap;
- where said spring protection cover includes a plurality of frictionally interlocking pieces of plastic.
5 more elements
Dependencies are inferred from the claim text.