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US 2003/0228918 A1Published application
One-way damper
AssigneeIllinois Tool Works Inc.
InventorDavid A. Doornbos
Life of this patent
Estimating the term…
Abstract
A damper includes a housing and a rotor. A portion of the rotor extends outwardly of the housing and has a gear rotatably disposed thereon. A coil spring encircles the portion of the rotor, and has an end segment secured to the gear. Rotation of the gear in one direction tightens the grip of the spring on the rotor, and rotation of the gear in the opposite direction loosens the grip of the spring on the rotor.
Claims28
A damper comprising:
- a housing;
- a rotor rotatably disposed in said housing, said rotor having a portion extending outwardly of said housing;
- a gear disposed on said portion of said rotor;
- and
- a mechanical link between said gear and said portion of said rotor, said mechanical link providing selective driving engagement between said gear and said portion when said gear is rotated in one direction.
2 more elements
A one-way gear damper comprising:
- a housing defining a chamber;
- a rotor having a first portion rotationally disposed in said chamber and a second portion extending outwardly of said housing;
- a gear rotatably disposed on said second portion of said rotor;
- a spring providing selective driving engagement between said gear and said second portion of said rotor;
- and
- a seal on said rotor between said housing and said spring.
3 more elements
A one-way gear damper comprising:
- a damper housing defining a chamber;
- a rotor having a first portion rotatably disposed in said chamber and a second portion extending outwardly of said housing;
- a fluid seal on said rotor between said chamber and said second portion of said rotor;
- a damper gear rotatably disposed on said second portion of said rotor, said damper gear including an aperture receiving said second portion and allowing relative rotation between said damper gear and said rotor;
- a link selectively interconnecting said damper gear and said rotor;
- and
- a device gear for operating a device, said device gear being drivingly engaged with said damper gear.
4 more elements
Dependencies are inferred from the claim text.