Class 267: SPRING DEVICES ( Manual of U.S. Patent Classification )

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Manual of U.S. Patent Classification
as of June 30, 2000


Class
267
SPRING DEVICES


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Subclass Title
ClassTitle ===> SPRING DEVICES
1.5[Patents]PACKING EXPANDER OR CONSTRICTOR
80[Patents]SPRING PANEL
81[Patents] . Composite springs of diverse material, e.g., metal and non-metal
82[Patents] . . Vented fluid chamber modifies action of metallic spring
83[Patents] . . Superposed layers; metal and non-metal
84[Patents] . . . Metal layer is compressible coil spring
85[Patents] . Multistage springs
86[Patents] . Diverse types of superposed metallic springs
87[Patents] . . Sinuous spring loading surface supported by other spring
88[Patents] . . Compressible coil spring loading surface supported by other spring
89[Patents] . With means to vary preliminary tension of spring
90[Patents] . With means to dampen vibration of springs, e.g., sound deadening
91[Patents] . Spring panel comprises vertically oriented compressible coil springs
92[Patents] . . Plural superposed coils
93[Patents] . . Panel comprises spring of varying capacities
94[Patents] . . With padding protector on spring end
95[Patents] . . Loading surface includes component other than coil spring
96[Patents] . . With resilient side or end, e.g., edge roll
97[Patents] . . With reinforcement or extension for border wire
98[Patents] . . With diagonal surface-to-frame brace
99[Patents] . . Resiliently mounted on frame by tensile springs
100[Patents] . . Mounted on frame spanning strips
101[Patents] . . Spring rows supported by row separating stringers
102[Patents] . With cantilevered surface extension, i.e., "soft edge"
103[Patents] . Spring means spacing loading surface vertically from plane of supporting frame
104[Patents] . . With supplementary spacing means intermediate ends of surface
105[Patents] . . Stiffener or bracer for loading surface
106[Patents] . . Multiple sections span frame
107[Patents] . . By inwardly bowed portion, i.e., "fishmouth" type
108[Patents] . . . With coiled apex, i.e., "safety pin" type
109[Patents] . . By outwardly bowed portion
110[Patents] . Panel secured peripherally to supporting frame
111[Patents] . . Panel secured to tension frame inwardly
112[Patents] . . . Secured by resilient connectors
2[Patents]VEHICLE
3[Patents] . Railway
4[Patents] . . Coil
5[Patents] . Perambulator
6[Patents] . Bolster
7[Patents] . . Leaf
183[Patents] . Parallel depression (e.g., having stabilizer bar)
184[Patents] . . Duplex
185[Patents] . . . Single pivot
186[Patents] . . Fluid stabilizer
187[Patents] . . . Including torque bar or pump
188[Patents] . . Torque bar or tube stabilizer
189[Patents] . . . And elastomeric member
190[Patents] . . . And coil spring
191[Patents] . . . And retarder
192[Patents] . . Leaf spring stabilizer
193[Patents] . . . Leaf spring acting between pivoted links
194[Patents] . . Plural nontorsion coil springs
195[Patents] . Mechanical spring and nonresilient retarder (e.g., shock absorber)
196[Patents] . . Friction (e.g., "snubber")
197[Patents] . . . Including flexible strap connector
198[Patents] . . . . Strap forms friction element
199[Patents] . . . . Flat spiral spring
200[Patents] . . . Having lubricating feature
201[Patents] . . . Elastomeric spring or friction element
202[Patents] . . . . And helical coil spring
203[Patents] . . . . . Plural coil springs
204[Patents] . . . Friction surface on helical spring
205[Patents] . . . Including cam or wedge friction element or actuator therefor
206[Patents] . . . . Helical cam surface
207[Patents] . . . . Plural axially spaced expandable friction rings
208[Patents] . . . . Including relatively rotating friction surfaces (e.g., drum type)
209[Patents] . . . . Including helical coil spring
210[Patents] . . . . . Transversely oriented coil for biasing friction surfaces
211[Patents] . . . . . Plural laterally spaced coils (e.g., spring group)
212[Patents] . . . . . Nested coil springs
213[Patents] . . . . . . Inside friction shell
214[Patents] . . . Friction surface formed on or biased by additional spring
215[Patents] . . . . Relatively rotating friction surfaces (e.g., drum type)
216[Patents] . . . Coil spring for biasing vehicle parts and friction surfaces
217[Patents] . . Fluid retarder
218[Patents] . . . With separate pump or adjustment for spring loading
219[Patents] . . . Elastomeric spring
220[Patents] . . . . Mounted at end of retarder
221[Patents] . . . Helical coil spring
222[Patents] . . . . Quadrilateral suspension
223[Patents] . . . . And rocking actuator arm or rotary fluid displacement member
224[Patents] . . . . . Plural mechanical springs for biasing vehicle parts
225[Patents] . . . . Plural mechanical springs for biasing vehicle parts
226[Patents] . . . . Spring within coaxial fluid chamber
227[Patents] . . . Leaf spring
228[Patents] . Lever and nontorsion spring
229[Patents] . . Leaf spring
230[Patents] . . . Quadrilateral suspension
231[Patents] . . . And coil spring
232[Patents] . . . . And roller
233[Patents] . . . . And "overload" bumper
234[Patents] . . . . Including adjustment for spring loading
235[Patents] . . . . . Adjusting screw coaxial with coil spring
236[Patents] . . . . Plural coils between vertically spaced leaf springs
237[Patents] . . . . Plural coaxial coils
238[Patents] . . . . . Nested coils
239[Patents] . . . . Having leaf-end-connecting lever
240[Patents] . . . . . Coil spring between lever and vehicle part
241[Patents] . . . And fluid pressure spring
242[Patents] . . . Including adjustment for spring loading
243[Patents] . . . And roller or bearing to accommodate deflection of spring
244[Patents] . . . Vertically spaced leaf springs (e.g., elliptic)
245[Patents] . . . Having serially pivoted levers at end of spring
246[Patents] . . . Transverse leaf spring
247[Patents] . . . Center acting or resiliently biased lever
248[Patents] . . Coil spring
249[Patents] . . . Enclosed spring
250[Patents] . . . . Plural coaxial coils in enclosure
251[Patents] . . . Plural nontorsion coil springs
252[Patents] . . . . Coaxial
253[Patents] . . . . Differentially deflected by lever
254[Patents] . . . Quadrilateral suspension
255[Patents] . . . Including adjustment for spring loading
256[Patents] . . Fluid spring
257[Patents] . . Elastomeric spring
258[Patents] . . . Annular or spherical
259[Patents] . Compound
23[Patents] . . Leaf, coil, and fluid pressure
24[Patents] . . Leaf, fluid pressure and liquid
25[Patents] . . Leaf and torsion
26[Patents] . . . Torsion coil
27[Patents] . . . . Leaf-end-connecting
28[Patents] . . Leaf and coil
29[Patents] . . . Leaf-end-connecting
30[Patents] . . Leaf and rubber type
31[Patents] . . Leaf and fluid pressure
32[Patents] . . . Leaf-end-connecting
33[Patents] . . Coil and rubber type
34[Patents] . . Coil and fluid pressure
35[Patents] . . Rubber type and fluid pressure
36.1[Patents] . Leaf
37.1[Patents] . . And covering
37.2[Patents] . . . Spiral or elastic covering
37.3[Patents] . . . Three serially arranged metallic segments
37.4[Patents] . . . Having lubricant reservoir or pad
38[Patents] . . Twin, axle interposed
39[Patents] . . Side bar
40[Patents] . . Longitudinal
41[Patents] . . Cantilever
42[Patents] . . Elliptic
43[Patents] . . Elliptic and leaf
44[Patents] . . Semielliptic
45[Patents] . . Semielliptic and leaf
46[Patents] . . . End-to-end connected
47[Patents] . . Structure
48[Patents] . . . Auxiliary tensioning elements
49[Patents] . . . Antifriction
50[Patents] . . . Lubrication
51[Patents] . . Broken-spring supports
52[Patents] . . Intermediate supports
53[Patents] . . Clips
260[Patents] . . Having specific end connection
261[Patents] . . . For elliptic spring
262[Patents] . . . Sliding
263[Patents] . . . Including spring for biasing pivotal connection
264[Patents] . . . Including threaded or grooved bearing surface
265[Patents] . . . Including spring position adjustment or geared connection
266[Patents] . . . Universal joint
267[Patents] . . . Having rolling antifriction elements (e.g., ball bearing)
268[Patents] . . . Having lubrication feature
269[Patents] . . . Including elastomeric material
270[Patents] . . . . Including tapered bushing or inner and outer sleeve for cylindrical bushing
271[Patents] . . . Including shackle pivoted to spring and to vehicle
272[Patents] . Flat spiral
273[Patents] . Torsion
274[Patents] . . Quadrilateral suspension
275[Patents] . . Helical torsion coil
276[Patents] . . And separate elastomeric member (e.g., bushing)
277[Patents] . . And adjustment for varying spring loading
278[Patents] . . . Screw threaded adjustment
279[Patents] . . Elastomeric torsion spring
280[Patents] . . . Plural axially spaced elastomeric elements
281[Patents] . . . And attached inner and outer metallic sleeves
282[Patents] . . . . Plural concentric elastomeric rings
283[Patents] . . Multilayer leaf
284[Patents] . . And housing enclosing spring
285[Patents] . . Plural torsion spring
286[Patents] . Coil
287[Patents] . . Having stiffener
288[Patents] . . Conical
289[Patents] . . Plural coils
290[Patents] . . . Nested
291[Patents] . . . Having guide rods extending through coils
292[Patents] . Elastomeric
293[Patents] . . Including central guide rod or tube through spring
294[Patents] . . Having rigid spacer plate between plural elastomeric segments
64.11[Patents] . Comprising compressible fluid
64.12[Patents] . . Having lockable strut
64.13[Patents] . . Including compressible liquid
64.14[Patents] . . Including chamber at sub-atmospheric pressure
64.15[Patents] . . With retarder
64.16[Patents] . . . Leveling device
64.17[Patents] . . . . Self-pumping
64.18[Patents] . . . . Having metering pin for varying spring rate
64.19[Patents] . . . . Having flexible wall
64.21[Patents] . . . . . Including rolling lobe between telescoping members
64.22[Patents] . . . Having metering pin for varying spring rate
64.23[Patents] . . . Having flexible wall
64.24[Patents] . . . . Including rolling lobe between telescoping members
64.25[Patents] . . . Having plural compressible fluid springs
64.26[Patents] . . . Having telescoping cylinders
64.27[Patents] . . Having flexible wall
64.28[Patents] . . Including means for charging or discharging spring
66[Patents] . Braces
67[Patents] . . Yielding
68[Patents] . . Sliding
69[Patents]ELASTIC EXTENSION DEVICES
70[Patents] . Compression spring
71[Patents] . . Single
72[Patents] . . . Drawbars inclosed
73[Patents] . Tension spring
74[Patents] . . Single
75[Patents]RECIPROCATING-BED-CUSHIONING DEVICES
113[Patents]FLUID
114[Patents] . Time delay
115[Patents] . Draft gear
116[Patents] . Bumper
117[Patents] . Cushion for person
118[Patents] . Expansible-contractible chamber device
119[Patents] . . Press cushion
120[Patents] . . Vehicle; for non-support or accessory support cushioning
121[Patents] . . Compound
122[Patents] . . Diaphragm or bellows
123[Patents] . . . For valve or throttle control
124[Patents] . . Piston
125[Patents] . . . For use in well drilling or operating
126[Patents] . . . System
127[Patents] . . . . Trans-piston passage
128[Patents] . . . Rigid-material-spring impelled
129[Patents] . . . Seal
130[Patents]PRESS CUSHION
131[Patents]SEAT SUPPORT
132[Patents] . Velocipede or motorcycle
133[Patents] . Flexural
134[Patents]FRICTION SNUBBER
135[Patents] . Snubbed coil spring or ring pack
136[Patents]RESILIENT SHOCK OR VIBRATION ABSORBER
137[Patents] . Tool movement dampening
138[Patents] . Draft gear
139[Patents] . Bumper
140[Patents] . . Rubber
140.11[Patents] . Including energy absorbing means or feature (e.g., supplemental vehicle equipment, such as motor mount, seat, etc., including additional fluid or friction energy absorber)
140.12[Patents] . . Having concentric coaxial spring between plural confining means for radial force
140.13[Patents] . . Axial
140.14[Patents] . . . With electronic or magnetic control
140.15[Patents] . . With electronic or magnetic control
140.2[Patents] . Variably preloaded
140.3[Patents] . Having diverse resilient element
140.4[Patents] . . Metallic and nonmetallic
140.5[Patents] . Diverse resistance to vibration along different axes
141[Patents] . Nonmetallic, resilient element
141.1[Patents] . . Plural resilient elements with rigid spacer
141.2[Patents] . . Confined between coaxial, vibrating annular members
141.3[Patents] . . . Including radial contact surface, e.g., tapered or shouldered member
141.4[Patents] . . . . Annular flange or collar embedded in resilient element
141.5[Patents] . . . . . Flanged or collared innermost member
141.6[Patents] . . . . Collapsible wall
141.7[Patents] . . . . Arcuate or tapered contact surface
142[Patents]CUSHION FOR HUMAN COMFORT
143[Patents] . Compound
144[Patents] . Zigzag
145[Patents] . Rubber
146[Patents] . Fibrous pad
147[Patents]COMPRESSED WIRE MESH
148[Patents]FIBROUS
149[Patents] . Glass fiber
150[Patents]CENTERING DEVICE
151[Patents]COMPOUND
152[Patents] . Rubber
153[Patents]RUBBER
154[Patents]TORSION
155[Patents] . Coil
156[Patents] . . Volute
157[Patents] . . Also compressible or expansible
158[Patents]BENDABLE ALONG FLAT SURFACE (E.G., LEAF SPRING)
159[Patents] . Snap spring
160[Patents] . Flexural support
161[Patents] . Ring or annular spider
162[Patents] . . Pair or pack
163[Patents] . Including tang or spider
164[Patents] . Bow spring or superposed spring elements
165[Patents] . . Zigzag or plural
166[Patents]COIL
166.1[Patents] . Conical
167[Patents] . Circular
168[Patents] . Plural, one within another
169[Patents] . Including internal brace
170[Patents] . Including end thrust member
171[Patents] . . Equilibrium or over-center
172[Patents] . . Including cam
173[Patents] . . Including lever
174[Patents] . . For dynamic or work environment
175[Patents] . . . Adjustable
176[Patents] . . . Reset
177[Patents] . . Adjustable
178[Patents] . . Support type
179[Patents] . . Particular end connection
180[Patents] . Irregular
181[Patents]FORAMINATED
182[Patents]MISCELLANEOUS
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DIGESTS
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DIG 1[Patents]Constant height
DIG 2[Patents]Constant height, self-pumping
DIG 3[Patents]Spring buckle


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Last Modified: 6 October 2000