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US 8,499,415 B2Granted
Floor spring and assembly method thereof
AssigneeGuangdong Kin Long Hardware Products Co., Ltd.
InventorBaokun Bai
Life of this patent
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Abstract
A floor spring includes a case, a damper assembly received in the case, and mixed powder filling a space inside the case covering the damper assembly. The damper assembly includes a spindle extending outwardly from the case. The mixed powder can prevent water, dust, or insects enter the case, such that the damper assembly is not tend to rust or fail.
Claims8
A floor spring, comprising:
- a case;
- a damper assembly received in the case, comprising a spindle extending outwardly from the case;
- and
- mixed powder filling a space inside the case covering the damper assembly, wherein the mixed powder is insoluble and non-flammable powder.
1 more element
Dependencies are inferred from the claim text.