US3729212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double flanged support leg
Assignee: WESTARN CORP
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Filing: 1970-12-21
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Granted: 1973-04-24
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Expires: 1990-12-21
Abstract
Abstract A landing gear support wherein the same leg may be used as either the right or left leg of the support. The leg includes a pair of flanges, one on each side of the upper end of the leg such that the leg may be secured with the flanges to either side of the trailer and may be used on trailers having either outside mounting plates or inside mounting plates. Gear boxes for individually moving the legs between their extended and retracted positions may be mounted to the flanges opposite those being used to mount the leg to the trailer. Alternatively, one gear box may be secured to one of the legs with a shaft extending between the two legs such that the legs may be simultaneously raised or lowered.
Inventors
- 👤 H Claflin
- 👤 J Belke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:55
CPC Classifications
B; B60; B60S; B60S9/00; B60S9/02; B60S9/04
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
163 words
In combination with a trailer body having a pair of landing gear mounting plates secured to opposite sides thereof, a landing gear for supporting one end of said trailer body, said landing gear comprising: a pair of substantially identical landing gear legs, said legs being interchangeable between the left and right side of said trailer and each of said legs being substantially symmetrical about a plane through the vertical axis thereof and including a pair of elongated flange plates secured to its upper end on opposite sides thereof for securing said leg to one of said mounting plates and each of said flange plates being substantially symmetrical about a second plane through said axis and perpendicular to said first plane; a gear box selectively detachably mounted to either one of the legs on the flange plate opposite from said mounting plate; and means connecting said gear box to both of said legs for manually moving said legs between their extended and retracted positions.
Claim 2
Dependent Claim
163 words
In combination with a trailer body having a pair of landing gear mounting plates secured to opposite sides thereof, a landing gear for supporting one end of said trailer body, said landing gear comprising: a pair of substantially identical landing gear legs, said legs being interchangeable between the left and right side of said trailer and each of said legs being substantially symmetrical about a plane through the vertical axis thereof and including a pair of elongated flange plates secured to its upper end on opposite sides thereof for securing said leg to one of said mounting plates and each of said flange plates being substantially symmetrical about a second plane through said axis and perpendicular to said first plane; a gear box selectively detachably mounted to either one of the legs on the flange plate opposite from said mounting plate; and means connecting said gear box to both of said legs for manually moving said legs between their extended and retracted positions.
Claim 3
Dependent Claim
32 words
The combination as defined in claim 1, wherein each of said flange plates includes vertically spaced apertures formed along opposite sides thereof for securing said leg to one of said mounting plates.
Claim 4
Dependent Claim
26 words
The combination as defined in claim 2, wherein said gear box is mounted on one of said flange plates by means of said vertically spaced apertures.
Claim 5
Dependent Claim
16 words
The combination as defined in claim 1, wherein said connecting means includes a rotatably mounted shaft.
Claim 6
Dependent Claim
56 words
The combination as defined in claim 1, and including a second gear box detachably mounted on the other of said legs on the flange plate opposite from said mounting plate, said connecting means including a clutching means for disengaging said connecting means such that said legs may be individually moved between their extended and retracted positions.
Claim 7
Dependent Claim
28 words
The combination as defined in claim 1, wherein said trailer body includes outside mounting plates and said legs are secured to the inner side of said mounting plates.
Claim 8
Dependent Claim
72 words
The combination as defined in claim 6, wherein each of said outside mounting plates includes a vertically disposed flange member secured to the inner edge of said plate, each of said flange members having two rows of vertically spaced apertures Formed therein, and each of said flange plates including vertically spaced apertures formed along opposite sides thereof for aligning with said apertures formed in said flange members to secure said leg thereto.
Claim 9
Dependent Claim
28 words
The combination as defined in claim 1, wherein said trailer body includes inside mounting plates and said legs are secured to the outer side of said mounting plates.
Claim 10
Dependent Claim
72 words
The combination as defined in claim 8, wherein each of said inside mounting plates includes a vertically disposed flange member secured to the outer edge of said plate, each of said flange members having two rows of vertically spaced apertures formed therein, and each of said flange plates including vertically spaced apertures formed along opposite sides thereof for aligning with said apertures formed in said flange members to secure said leg thereto.
Claim 11
Dependent Claim
146 words
In combination with a trailer body having a pair of landing gear mounting plates secured to opposite sides thereof, a landing gear for supporting an end of said body, said landing gear comprising: a pair of landing gear legs, said legs being interchangeable between the right and left side of said trailer and each of said legs being substantially symmetrical about a plane through the vertical axis thereof and including a pair of elongated flange plates secured to its upper end on opposite sides thereof for securing said leg to one of said mounting plates, and each of said flange plates being substantially symmetrical about a second plane through said axis perpendicular to said first plane; a gear box detachably mounted on each of said legs on the flange plate opposite from said mounting plate for manually moving said legs between their extended and retracted positions.
Claim 12
Dependent Claim
146 words
In combination with a trailer body having a pair of landing gear mounting plates secured to opposite sides thereof, a landing gear for supporting an end of said body, said landing gear comprising: a pair of landing gear legs, said legs being interchangeable between the right and left side of said trailer and each of said legs being substantially symmetrical about a plane through the vertical axis thereof and including a pair of elongated flange plates secured to its upper end on opposite sides thereof for securing said leg to one of said mounting plates, and each of said flange plates being substantially symmetrical about a second plane through said axis perpendicular to said first plane; a gear box detachably mounted on each of said legs on the flange plate opposite from said mounting plate for manually moving said legs between their extended and retracted positions.
Claim 13
Dependent Claim
44 words
The combination as defined in claim 10 wherein each of said flange plates includes vertically spaced apertures formed along opposite sides thereof for securing said leg to one of said mounting plates and securing said gear box to the opposite side of said leg.
Claim 14
Dependent Claim
28 words
The combination as defined in claim 10 wherein said trailer body includes outside mounting plates and said legs are secured to the inner side of said mounting plates.
Claim 15
Dependent Claim
28 words
The combination as defined in claim 10, wherein said trailer body includes inside mounting plates and said legs are secured to the outer side of said mounting plates.
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) | 1976-04-23 | 1976-10-23 | 1977-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-23 | 1980-10-23 | 1981-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-23 | 1984-10-23 | 1985-04-24 | $7700.00 | Window Closed / Lapsed |