Spring Devices Patents (Class 267)
- Composite springs of diverse material, e.g., metal and non-metal (Class 267/81)
- Multistage springs (Class 267/85)
- Diverse types of superposed metallic springs (Class 267/86)
- With means to vary preliminary tension of spring (Class 267/89)
- With means to dampen vibration of springs, e.g., sound deadening (Class 267/90)
- Spring panel comprises vertically oriented compressible coil springs (Class 267/91)
- With cantilevered surface extension, i.e., "soft edge" (Class 267/102)
- Spring means spacing loading surface vertically from plane of supporting frame (Class 267/103)
- Panel secured peripherally to supporting frame (Class 267/110)
- Railway (Class 267/3)
- Perambulator (Class 267/5)
- Bolster (Class 267/6)
- Parallel depression (e.g., having stabilizer bar) (Class 267/183)
- Mechanical spring and nonresilient retarder (e.g., shock absorber) (Class 267/195)
- Lever and nontorsion spring (Class 267/228)
- Compound (Class 267/259)
- Leaf (Class 267/36.1)
- Flat spiral (Class 267/272)
- Torsion (Class 267/273)
- Coil (Class 267/286)
- Elastomeric (Class 267/292)
- Comprising compressible fluid (Class 267/64.11)
- Braces (Class 267/66)
- Tool movement dampening (Class 267/137)
- Draft gear (Class 267/138)
- Bumper (Class 267/139)
- Including energy absorbing means or feature (e.g., supplemental vehicle equipment, such as motor mount, seat, etc., including additional fluid or friction energy absorber) (Class 267/140.11)
- Variably preloaded (Class 267/140.2)
- Having diverse resilient element (Class 267/140.3)
- Diverse resistance to vibration along different axes (Class 267/140.5)
- Nonmetallic, resilient element (Class 267/141)
