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US3898873A Expired / Lapsed US ⏱️ 0.0 years remaining

Testing device and method for testing containers

Assignee: Pullman Inc
•
Filing: 1973-07-16
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Granted: 1975-08-12
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Expires: 1993-07-16
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Abstract

Abstract Intermodal cargo containers are bottom lift tested by means of a test fixture including adjustable supports which are connected to the lower corner fittings to maintain the container in a raised position free of a supporting surface. The upper corner fittings are first connected to a suitable hoisting device and upon lifting are placed in tension. The lower corner fitting lifting capability of the container is then tested by releasing the tension in the cables, the said bottom lift test fixtures being placed in compression. The text fixtures are readily adaptable for accommodating different lengths of containers.

Inventors

  • 👤 John J Glassmeyer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 10:52
CPC Classifications
G; G01; G01N; G01N3/00; G01N3/08

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 274 words
A testing device for a container having upper and lower connector elements located at the upper and lower corners of said container, each connector element including at least one horizontal extending recess, a lifting device connected to the upper connector elements for lifting the container and for effecting exertion of an upward reactive force on said upper connector elements, said testing device comprising a horizontal support surface and a plurality of supports located on said surface, each of said supports including a base, a support pedestal on said base extending upwardly relative thereto, said pedestal of each support including an arm and strut means connected to said arm, said arm and said strut means being hingedly connected to said base in opposed and spaced relation to each other such that said strut means extends diagonally upwardly from said base, said arm having an opening alignable with the recess of a lower connector element of the container, the opening being disposed above said support surface, said strut means including longitudinally adjustable means for effecting hinged movement of said arm relative to said base and alignment of the opening of said arm with the recess of a lower connector element, and removable connecting means receivable in the opening of each arm and the aligned recess of each lower connector element for connecting the arms to the lower connector elements of the container in order that the lower connector elements of the container support the container above and in spaced relation to said surface so that testing of the lower connector elements of the container is effected as the lifting device is lowered relative to the container.
Claim 2
Dependent Claim 274 words
A testing device for a container having upper and lower connector elements located at the upper and lower corners of said container, each connector element including at least one horizontal extending recess, a lifting device connected to the upper connector elements for lifting the container and for effecting exertion of an upward reactive force on said upper connector elements, said testing device comprising a horizontal support surface and a plurality of supports located on said surface, each of said supports including a base, a support pedestal on said base extending upwardly relative thereto, said pedestal of each support including an arm and strut means connected to said arm, said arm and said strut means being hingedly connected to said base in opposed and spaced relation to each other such that said strut means extends diagonally upwardly from said base, said arm having an opening alignable with the recess of a lower connector element of the container, the opening being disposed above said support surface, said strut means including longitudinally adjustable means for effecting hinged movement of said arm relative to said base and alignment of the opening of said arm with the recess of a lower connector element, and removable connecting means receivable in the opening of each arm and the aligned recess of each lower connector element for connecting the arms to the lower connector elements of the container in order that the lower connector elements of the container support the container above and in spaced relation to said surface so that testing of the lower connector elements of the container is effected as the lifting device is lowered relative to the container.
Claim 3
Dependent Claim 26 words
The invention in accordance with claim 1 wherein said removable connecting means is comprised of removable plug means; and said plug means including stop collar means.
Claim 4
Dependent Claim 18 words
The invention in accordance with claim 1 wherein said longitudinally adjustable means comprises a pair of telescoping members.
Claim 5
Dependent Claim 32 words
The invention in accordance with claim 3 wherein the pair of telescoping members have alignable openingS, and pin means receivable in the alignable openings for locking the pair of telescoping members together.
Claim 6
Dependent Claim 62 words
The invention in accordance with claim 1 wherein said base includes openings, said surface includes tubular elements alignable with the openings in said base, and pin means receivable in an opening and a tubular element aligned relative to the opening, the pin means in the opening and the aligned tubular element for securing said base against displacement relative to said support surface.
Claim 7
Dependent Claim 28 words
The invention in accordance with claim 1 wherein said plurality of supports include a pair of supports; and beam means interconnecting the bases of said pair of supports.
Claim 8
Dependent Claim 16 words
The invention in accordance with claim 1 wherein said arm extends diagonially upwardly from said base.
Claim 9
Independent Claim 228 words
A method of testing the lifting capability of a container carrying a test load and having connector elements located at the upper and lower corners of the container, each connector element including a horizontally extending recess, a plurality of supports on a support surface, each one of the supports having a base and an arm hingedly connected to and disposed above the base, each arm having an opening alignable with the recess of a lower connector element, a lifting device connected to the recess of each one of the upper connector elements, said method comprising the steps of: aligning the recesses of the lower connector elements with the openings of the arms of said supports as the lifting device is connected to the recesses of the upper connector elements and suspends the container above the support surface, inserting removable connecting elements in the aligned openings and recesses of the arms and lower connector elements for connecting the container to the supports, and lowering the lifting device along with the container in order that the container is supported by said removable connecting elements at the lower connector elements of the container such that the container is disposed above and spaced from the support surface and such that each one of said removable connecting elements exerts a diagonally upwardly extending reactive force against a lower connector element of the container.
Claim 10
Independent Claim 228 words
A method of testing the lifting capability of a container carrying a test load and having connector elements located at the upper and lower corners of the container, each connector element including a horizontally extending recess, a plurality of supports on a support surface, each one of the supports having a base and an arm hingedly connected to and disposed above the base, each arm having an opening alignable with the recess of a lower connector element, a lifting device connected to the recess of each one of the upper connector elements, said method comprising the steps of: aligning the recesses of the lower connector elements with the openings of the arms of said supports as the lifting device is connected to the recesses of the upper connector elements and suspends the container above the support surface, inserting removable connecting elements in the aligned openings and recesses of the arms and lower connector elements for connecting the container to the supports, and lowering the lifting device along with the container in order that the container is supported by said removable connecting elements at the lower connector elements of the container such that the container is disposed above and spaced from the support surface and such that each one of said removable connecting elements exerts a diagonally upwardly extending reactive force against a lower connector element of the container.
Claim 11
Dependent Claim 55 words
A method in accordance with claim 8 wherein said method includes the additional step of exerting an upward reactive force on said upper connector elements of the container as the lifting device together with the container is lifted relative to the surface without the lower connector elements of the container being connected to the supports.

References Cited (Backward Citations)

US3480174A Cited
US3691595A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-08-11 1979-02-10 1979-08-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-08-11 1983-02-10 1983-08-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-08-11 1987-02-10 1987-08-12 $7700.00 Window Closed / Lapsed

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