US3703244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trailer chassis
Assignee: Individual
•
Filing: 1969-10-31
•
Granted: 1972-11-21
•
Expires: 1989-10-31
Abstract
Abstract A multiple functional land trailer is provided which is adapted to receive, center and immovably hold material-receiving containers such as, shipping containers for bulk material, transporting means for animals, coach-type living or camping structures, or a plurality of material-receiving modular units and the like.
Inventors
- 👤 David P Walsh
- 👤 Joanne M Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:46
CPC Classifications
B; B62; B62D; B62D63/00; B62D63/06; B60; B60P; B60P1/00; B60P1/64; B60P1/6418; B60P1/6427; B62D53/00; B62D53/04; B62D53/06; B62D53/067
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
144 words
A multiple functional land trailer comprising: A. a main trailer chassis frame; B. a rigid, self-supporting trailer body supporting frame removably mounted on said main chassis frame; C. said main trailer chassis frame including: i. upstanding front and side walls defining an upwardly open trailer body supporting frame receiving bed; D. said trailer body supporting frame and said receiving bed of said main trailer chassis frame respectively having shapes and dimensions to interengage in mating nested relationship and with said receiving bed engaging and supporting said trailer body supporting frame in co-extensive intimate frame-to-frame supporting engagement therewith; and E. engaging and centering means on said chassis frame and said trailer body supporting frame for interengaging and securing said trailer body supporting frame to said receiving bed in an integrated and interlocked relationship as a substantially unitized composite structure of combined structural support and rigidity.
Claim 2
Dependent Claim
144 words
A multiple functional land trailer comprising: A. a main trailer chassis frame; B. a rigid, self-supporting trailer body supporting frame removably mounted on said main chassis frame; C. said main trailer chassis frame including: i. upstanding front and side walls defining an upwardly open trailer body supporting frame receiving bed; D. said trailer body supporting frame and said receiving bed of said main trailer chassis frame respectively having shapes and dimensions to interengage in mating nested relationship and with said receiving bed engaging and supporting said trailer body supporting frame in co-extensive intimate frame-to-frame supporting engagement therewith; and E. engaging and centering means on said chassis frame and said trailer body supporting frame for interengaging and securing said trailer body supporting frame to said receiving bed in an integrated and interlocked relationship as a substantially unitized composite structure of combined structural support and rigidity.
Claim 3
Dependent Claim
144 words
A multiple functional land trailer comprising: A. a main trailer chassis frame; B. a rigid, self-supporting trailer body supporting frame removably mounted on said main chassis frame; C. said main trailer chassis frame including: i. upstanding front and side walls defining an upwardly open trailer body supporting frame receiving bed; D. said trailer body supporting frame and said receiving bed of said main trailer chassis frame respectively having shapes and dimensions to interengage in mating nested relationship and with said receiving bed engaging and supporting said trailer body supporting frame in co-extensive intimate frame-to-frame supporting engagement therewith; and E. engaging and centering means on said chassis frame and said trailer body supporting frame for interengaging and securing said trailer body supporting frame to said receiving bed in an integrated and interlocked relationship as a substantially unitized composite structure of combined structural support and rigidity.
Claim 4
Dependent Claim
144 words
A multiple functional land trailer comprising: A. a main trailer chassis frame; B. a rigid, self-supporting trailer body supporting frame removably mounted on said main chassis frame; C. said main trailer chassis frame including: i. upstanding front and side walls defining an upwardly open trailer body supporting frame receiving bed; D. said trailer body supporting frame and said receiving bed of said main trailer chassis frame respectively having shapes and dimensions to interengage in mating nested relationship and with said receiving bed engaging and supporting said trailer body supporting frame in co-extensive intimate frame-to-frame supporting engagement therewith; and E. engaging and centering means on said chassis frame and said trailer body supporting frame for interengaging and securing said trailer body supporting frame to said receiving bed in an integrated and interlocked relationship as a substantially unitized composite structure of combined structural support and rigidity.
Claim 5
Dependent Claim
57 words
The invention defined in claim 1 including a telescopic boom carried by the main frame and adapted to extend rearwardly of the rear end of said trailer, winch means secured to the forward end of said trailer and flexible draft means cooperating with the removable container and said boom for urging the container from the trailer chassis.
Claim 6
Dependent Claim
17 words
The invention defined in claim 2 including a pulley mounted at the rearward end of said boom.
Claim 7
Dependent Claim
36 words
The invention defined in claim 1 including container removal facilitating means operatively carried by the main frame and selectively attachable to the removable container, said means being operable for urging the container from the trailer chassis.
Claim 8
Dependent Claim
52 words
A multiple functional land trailer as claimed in claim 1, including support legs pivotally connected to each trailer body frame, said support legs being retractable and extensible, said support legs being retractable and securable within the confines of said trailer body frame in a manner to prevent interference between the respective frames.
Claim 9
Dependent Claim
144 words
A multiple functional land trailer comprising: A. a wheeled chassis; B. a trailer body; C. said chassis including a generally quadrangular main frame and upstanding front and side walls defining a trailer body receiving bed to receive a rigid removable trailer body; D. said trailer body having a frame of size and shape corresponding to said trailer body receiving bed and removably nested and mating therein; E. said trailer body frame having apertures in at least one end wall thereof; F. engaging and centering cam members secured to an end wall of said trailer body receiving bed and engageable in said apertures, said cam members and said apertures coacting for securing said trailer body in said trailer body receiving bed and interengaging and securing said frames in an integrated and interlocked relationship as a substantially unitized composite structure of combined structural support and rigidity.
Claim 10
Dependent Claim
144 words
A multiple functional land trailer comprising: A. a wheeled chassis; B. a trailer body; C. said chassis including a generally quadrangular main frame and upstanding front and side walls defining a trailer body receiving bed to receive a rigid removable trailer body; D. said trailer body having a frame of size and shape corresponding to said trailer body receiving bed and removably nested and mating therein; E. said trailer body frame having apertures in at least one end wall thereof; F. engaging and centering cam members secured to an end wall of said trailer body receiving bed and engageable in said apertures, said cam members and said apertures coacting for securing said trailer body in said trailer body receiving bed and interengaging and securing said frames in an integrated and interlocked relationship as a substantially unitized composite structure of combined structural support and rigidity.
Claim 11
Dependent Claim
84 words
A multiple functional land trailer as claimed in claim 6, wherein the securing means include at least one trailer body engaging and centering cam member secured to said front wall and projecting generally rearwardly, a rearwardly foldable upstanding rear wall on said chassis, at least one cam member carried by said rear wall, said trailer body having a mating rear opening in the frame thereof, said latter cam member being engageable in said latter opening when said rear wall is in an upstanding position.
Claim 12
Dependent Claim
35 words
The trailer defined in claim 7 wherein said rear wall is hinged to the main frame along its lateral rear edge and lock means securing said rear wall to each of said upstanding side walls.
Claim 13
Dependent Claim
47 words
The invention defined in claim 8 wherein said lock means includes a pair of arm members hinge-connected to the lateral edges of said rear wall and adapted to lie in parallel abutting engagement with the side walls when the rear wall is in the upstanding latched position.
Claim 14
Dependent Claim
23 words
The invention defined in claim 7 wherein the front wall and the rear wall each include a pair of said container-centering cam members.
References Cited (Backward Citations)
US495658A
Cited
US1521156A
Cited
US2846264A
Cited
US3119503A
Cited
US3266836A
Cited
US3332601A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-21 | 1976-05-22 | 1976-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-21 | 1980-05-22 | 1980-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-21 | 1984-05-22 | 1984-11-21 | $7700.00 | Window Closed / Lapsed |