Patent DE374657C successfully refreshed from Google Patents.
Patent US4524841A successfully refreshed from Google Patents.
US4524841A
Expired / Lapsed
US
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Auxiliary axle apparatus
Assignee: Individual
•
Filing: 1983-11-21
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Granted: 1985-06-25
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Expires: 2003-11-21
Abstract
Abstract Auxiliary trailer axle apparatus including a frame portion, a carriage portion, a hitch portion, a bearing portion, a support portion and a lifting portion; the frame portion including a substantially horizontal section, supporting members extending downwardly from the horizontal section adjacent the ends thereof, the supporting members being pivotally connected to the horizontal section; the carriage portion including an axle housing section secured between the supporting members adjacent the lower ends thereof, an axle member carried by the axle housing section, wheels disposed on the ends of the axle member, expandable members disposed between the horizontal section and the axle housing section; the hitch portion including a tongue section extending from the frame portion substantially perpendicular to the axle section, connecting mechanism disposed on a free end of the tongue section; the bearing portion including at least one pair of low friction pad members, one of the pad members being disposed adjacent each end of a top surface of the frame portion; the support portion including an upper support member disposed above the frame portion and closely adjacent thereto, the upper support member including a bottom surface in contact with the pad members of the bearing portion, mechanism for affixing the support portion to a frame section of a trailer; the lifting portion including mechanism connected to the axle housing section for raising the wheels off the ground.
Inventors
- 👤 Wayne Waggoner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:55
CPC Classifications
B; B62; B62D; B62D63/00; B62D63/06; B62D63/08; B60; B60G; B60G9/00; B62D61/00; B62D61/12
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
228 words
Auxiliary trailer axle apparatus including a frame portion, a carriage portion, a hitch portion, a bearing portion, a support portion and a lifting portion; said frame portion including a substantially horizontal section, supporting members extending downwardly from said horizontal section adjacent the ends thereof, said supporting members being pivotally connected to said horizontal section; said carriage portion including an axle housing section secured between said supporting members adjacent the lower ends thereof, an axle member carried by said axle housing section, wheels disposed on the ends of said axle member, expandable members disposed between said horizontal section and said axle housing section; said hitch portion including a tongue section extending from said frame portion substantially perpendicular to said axle section, connecting means disposed on a free end of said tongue section; said bearing portion including at least one pair of low friction pad members, one of said pad members being disposed adjacent each end of a top surface of said frame portion; said support portion including an upper support member disposed above said frame portion and closely adjacent thereto, said upper support member including a bottom surface in contact with said pad members of said bearing portion, means for affixing said support portion to a frame section of a trailer; said lifting portion including means connected to said axle housing section for raising said wheels off the ground.
Claim 2
Dependent Claim
228 words
Auxiliary trailer axle apparatus including a frame portion, a carriage portion, a hitch portion, a bearing portion, a support portion and a lifting portion; said frame portion including a substantially horizontal section, supporting members extending downwardly from said horizontal section adjacent the ends thereof, said supporting members being pivotally connected to said horizontal section; said carriage portion including an axle housing section secured between said supporting members adjacent the lower ends thereof, an axle member carried by said axle housing section, wheels disposed on the ends of said axle member, expandable members disposed between said horizontal section and said axle housing section; said hitch portion including a tongue section extending from said frame portion substantially perpendicular to said axle section, connecting means disposed on a free end of said tongue section; said bearing portion including at least one pair of low friction pad members, one of said pad members being disposed adjacent each end of a top surface of said frame portion; said support portion including an upper support member disposed above said frame portion and closely adjacent thereto, said upper support member including a bottom surface in contact with said pad members of said bearing portion, means for affixing said support portion to a frame section of a trailer; said lifting portion including means connected to said axle housing section for raising said wheels off the ground.
Claim 3
Dependent Claim
17 words
Auxiliary axle apparatus according to claim 1 wherein said horizontal section has a generally box channel configuration.
Claim 4
Dependent Claim
19 words
Auxiliary axle apparatus according to claim 1 wherein said supporting members of said frame portion include radius rod sections.
Claim 5
Dependent Claim
18 words
Auxiliary axle apparatus according to claim 1 wherein said supporting members of said frame sections include shock absorbers.
Claim 6
Dependent Claim
17 words
Auxiliary axle apparatus according to claim 1 wherein said supporting members are pivotable on generally horizontal shafts.
Claim 7
Dependent Claim
20 words
Auxiliary axle apparatus according to claim 1 wherein said axle housing section is disposed substantially parallel to said horizontal section.
Claim 8
Dependent Claim
14 words
Auxiliary axle apparatus according to claim 1 wherein said expandable members include inflatable sections.
Claim 9
Dependent Claim
15 words
Auxiliary axle apparatus according to claim 7 wherein said inflatable sections include expandable bag members.
Claim 10
Dependent Claim
21 words
Auxiliary axle apparatus according to claim 1 wherein said tongue section is aligned with a longitudinal center line of said apparatus.
Claim 11
Dependent Claim
24 words
Auxiliary axle apparatus according to claim 1 wherein said bearing portion includes resilient sections between said low friction pad members and said frame portion.
Claim 12
Dependent Claim
15 words
Auxiliary axle apparatus according to claim 1 wherein said pad members are formed of nylon.
Claim 13
Dependent Claim
20 words
Auxiliary axle apparatus according to claim 1 wherein said bottom surface of said upper support member includes a continuous surface.
Claim 14
Dependent Claim
16 words
Auxiliary axle apparatus according to claim 12 wherein said upper support member includes an arcuate surface.
Claim 15
Dependent Claim
16 words
Auxiliary axle apparatus according to claim 1 wherein said lifting portion includes pulley and cable means.
Claim 16
Dependent Claim
19 words
Auxiliary axle apparatus according to claim 1 including a plurality of auxiliary axle apparatus disposed close to one another.
Claim 17
Dependent Claim
20 words
Auxiliary axle apparatus according to claim 1 wherein said auxiliary axle apparatus is located intermediate the length of a trailer.
Claim 18
Dependent Claim
26 words
Auxiliary axle apparatus according to claim 1 wherein the movement of said apparatus is limited by stop sections selectively engageable with a frame of said trailer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-24 | 1988-12-24 | 1989-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-24 | 1992-12-24 | 1993-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-24 | 1996-12-24 | 1997-06-25 | $7700.00 | Window Closed / Lapsed |