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US4505449A Expired / Lapsed US ⏱️ 0.0 years remaining

Lightweight concrete cladded heavy equipment base

Assignee: Diversitech Corp
•
Filing: 1980-02-22
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Granted: 1985-03-19
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Expires: 2000-02-22
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Abstract

Abstract An expanded foam core such as a polystyrene foam board is covered on only its sides and top with a fiberglass reinforced cementitious material to form a solid base. Heavy steel coils can be embedded in the composite for receiving steel posts which serve to mount air conditioners or the like. Alternatively, a recess can be formed in the composition for use as a transformer pad.

Inventors

  • 👤 George S. Turner
  • 👤 Donald B. Mitchell

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 08:32
CPC Classifications
F; F16; F16M; F16M5/00

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 62 words
A base for the support of equipment, said base comprising: a foam core having a top, a bottom and a plurality of side surfaces; and a coating attached to at least said top and all of said side surfaces of said foam core, said coating comprising a cementitious material, said cementitious material covering the top and sides only of said foam core.
Claim 2
Dependent Claim 62 words
A base for the support of equipment, said base comprising: a foam core having a top, a bottom and a plurality of side surfaces; and a coating attached to at least said top and all of said side surfaces of said foam core, said coating comprising a cementitious material, said cementitious material covering the top and sides only of said foam core.
Claim 3
Dependent Claim 16 words
The base as defined in claim 1 wherein said foam core comprises a polystyrene foam board.
Claim 4
Dependent Claim 18 words
The base as defined in claim 1 wherein said cementitious material comprises an alkali resistant fiberglass cement composite.
Claim 5
Dependent Claim 22 words
The base as defined in claim 1 and further including cementitious threaded casements embedded in said core for receiving threaded support rods.
Claim 6
Dependent Claim 19 words
The base as defined in claim 4 wherein said threaded casements are formed in one piece with said coating.
Claim 7
Dependent Claim 17 words
The base as defined in claim 5 and further including heavy steel coils embedded in said casements.
Claim 8
Dependent Claim 170 words
A base for the support of equipment, said base comprising: a lightweight foam core having a top surface, a bottom surface capable of performing as a cushion when stacking and a plurality of side surfaces; and a coating attached to only said top surface and all of said side surfaces of said foam core, said coating comprising a cementitious material including alkali resistant fiberglass strands in a cement composite, the coating of said top surface intermediate said plurality of side surfaces having a plurality of depending bosses, a steel coil embedded in each of said bosses for forming internally threaded inserts, a threaded support post adjustably threaded into each insert, said lightweight foam core having bevelled upper corner edges formed between said top surface and said plurality of side surfaces, said coating being thicker adjacent said bevelled upper corner edges relative to the thickness of said coating attached to said top surface, each of said threaded posts having a surmounting bearing plate attached on one end thereto above said base.
Claim 9
Dependent Claim 170 words
A base for the support of equipment, said base comprising: a lightweight foam core having a top surface, a bottom surface capable of performing as a cushion when stacking and a plurality of side surfaces; and a coating attached to only said top surface and all of said side surfaces of said foam core, said coating comprising a cementitious material including alkali resistant fiberglass strands in a cement composite, the coating of said top surface intermediate said plurality of side surfaces having a plurality of depending bosses, a steel coil embedded in each of said bosses for forming internally threaded inserts, a threaded support post adjustably threaded into each insert, said lightweight foam core having bevelled upper corner edges formed between said top surface and said plurality of side surfaces, said coating being thicker adjacent said bevelled upper corner edges relative to the thickness of said coating attached to said top surface, each of said threaded posts having a surmounting bearing plate attached on one end thereto above said base.

References Cited (Backward Citations)

US3004777A Cited
US3424413A Cited
US3653341A Cited
US4056251A Cited
US4212446A Cited
US4044520A Cited
US4067164A Cited
US4084362A Cited
US4229497A Cited
US4186536A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-03-18 1988-09-17 1989-03-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-03-18 1992-09-17 1993-03-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-03-18 1996-09-17 1997-03-19 $7700.00 Window Closed / Lapsed

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