Patent US4807894A successfully refreshed from Google Patents.
US4807894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trailerable structure and components for use therewith
Assignee: Individual
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Filing: 1987-11-30
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Granted: 1989-02-28
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Expires: 2007-11-30
Abstract
Abstract A simple trailer frame is provided which may be included within a structure, and which allows the frame or the structure to be easily and quickly converted into a mobile trailer on detachable wheel assemblies, without the need for tools. The components and assemblies are also quickly and easily removed from the structure without the need for tools. When the frame is used within a structure, once the structure is at its use site it need show very little evidence that it was a trailer. Also included in the frame is a towing member receiving member for quick and easy attachment and detachment of a towing member to the frame without the need for tools. A mechanical linkage may be provided in the frame in combination with wheel receiving members so that proper connection of the towing member to the frame locks the wheel assemblies in place on the frame. As a safety precaution, the design may also include a provision so that the towing member cannot be secured to the structure unless the wheel assemblies are fully and properly locked to the frame. Details of wheel assemblies, light assemblies and other trailer components which are quickly and easily removably attached to the trailer system or frame by a single individual without the need for tools are provided. Self-contained lifting and lowering components, such as jacks, may also be included as an integral part of the frame or the structure.
Inventors
- 👤 Douglas W. Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:25
CPC Classifications
B; B62; B62D; B62D63/00; B62D63/06; B62D63/061; B63; B63C; B63C13/00
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
234 words
A structure which can rest upon a surface and which avoids the appearance of being a trailer, but which is never-the-less capable of having wheels, a towing bar and other trailer components removably attached to it, without the need for tools, to allow it to be towed like a trailer, comprising in combination: a frame; wheel assembly receiving means carried by said frame for detachably receiving one or more wheel assemblies, which wheel assembly receiving means further includes means for quickly and easily attaching and detaching a wheel assembly to said receiving means without the need for tools; wheel locking means for locking a wheel assembly to each said wheel assembly receiving means which is carried by said frame; towing member receiving means carried by said frame for detachably receiving a towing member; and actuation means carried by said frame for actuation of said wheel locking means, said actuation means being linked to said towing member receiving means; whereby, insertion of a towing member into said towing member receiving means received within said wheel assembly receiving means, automatically actuates said wheel locking means, and removal of a towing member from said towing member receiving means automatically deactivates said wheel locking means, and whereby further said frame can be towed when one or more wheel assemblies and a towing member is attached thereto, or rest upon a surface when all wheel assemblies are detached therefrom.
Claim 2
Dependent Claim
234 words
A structure which can rest upon a surface and which avoids the appearance of being a trailer, but which is never-the-less capable of having wheels, a towing bar and other trailer components removably attached to it, without the need for tools, to allow it to be towed like a trailer, comprising in combination: a frame; wheel assembly receiving means carried by said frame for detachably receiving one or more wheel assemblies, which wheel assembly receiving means further includes means for quickly and easily attaching and detaching a wheel assembly to said receiving means without the need for tools; wheel locking means for locking a wheel assembly to each said wheel assembly receiving means which is carried by said frame; towing member receiving means carried by said frame for detachably receiving a towing member; and actuation means carried by said frame for actuation of said wheel locking means, said actuation means being linked to said towing member receiving means; whereby, insertion of a towing member into said towing member receiving means received within said wheel assembly receiving means, automatically actuates said wheel locking means, and removal of a towing member from said towing member receiving means automatically deactivates said wheel locking means, and whereby further said frame can be towed when one or more wheel assemblies and a towing member is attached thereto, or rest upon a surface when all wheel assemblies are detached therefrom.
Claim 3
Dependent Claim
54 words
The structure of claim 1, wherein a towing member is connected to said towing member receiving means, and wherein further one or more wheel assemblies is connected to said wheel assembly receiving means, whereby said locking means is actuated and said one or more wheel assembly is locked to said wheel assembly receiving means.
Claim 4
Dependent Claim
33 words
The structure of claim 2 wherein said towing member receiving means includes a receptacle, and wherein further said towing member is sized and designed to enter said receptacle and make detachable connection therewith.
Claim 5
Dependent Claim
20 words
The structure of claim 3 wherein means are provided for detachably locking said towing member to said towing member receptacle.
Claim 6
Dependent Claim
33 words
The structure of claim 3 wherein said wheel locking means is activated and deactivated by insertion and removal of said towing member into and from said towing member receiving receptacle in said frame.
Claim 7
Dependent Claim
31 words
The structure of claim 3 wherein said towing member is disabled from being locked to said receptacle when said wheel assemblies are not properly connected to said wheel assembly receiving means.
Claim 8
Dependent Claim
21 words
The structure of claim 6 wherein receiving means for manually attaching and detaching a road light is included in said structure.
Claim 9
Dependent Claim
50 words
The structure of claim 6 wherein said means for receiving a road light includes receiving means for attaching and detaching said light to said structure, means for resisting displacement of said light from said receiving means; and means for providing electrical connection to a light placed into said receiving means.
Claim 10
Dependent Claim
23 words
The structure of claim 8 wherein said light receiving means includes a socket which is substantially flush with the surface of the structure.
Claim 11
Dependent Claim
18 words
The structure of claim 1 wherein there are two transversely spaced apart means for receiving a wheel assembly.
Claim 12
Dependent Claim
23 words
The structure of claim 10 wherein a wheel assembly is connected to said frame at each of said two wheel assembly receiving means.
Claim 13
Dependent Claim
21 words
The structure of claim 1 wherein a wheel assembly is connected to said frame at each said means wheel assembly receiving.
Claim 14
Dependent Claim
48 words
The structure of claim 12 wherein said structure further includes means independent of said wheel assemblies for lowering and raising said structure to allow it to rest upon a surface or to be raised from a surface to allow the manual removal or attachment of said wheel assemblies.
Claim 15
Dependent Claim
20 words
The structure of claim 13 wherein said means for lowering and raising said structure includes one or more jack mechanism.
Claim 16
Dependent Claim
16 words
The structure of claim 1 wherein a towing member is connected to said towing member receiving.
Claim 17
Dependent Claim
42 words
The structure of claim 15 wherein said towing member includes means for vertically articulating said towing member, whereby said towing member can be utilized to lift one end of said frame to allow the manual removal and attachment of said wheel assemblies.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-28 | 1992-08-29 | 1993-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-28 | 1996-08-29 | 1997-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-28 | 2000-08-29 | 2001-02-28 | $7700.00 | Window Closed / Lapsed |