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US4745720A Expired / Lapsed US ⏱️ 0.0 years remaining

Insulated cinderblock

Assignee: Individual
•
Filing: 1987-03-24
•
Granted: 1988-05-24
•
Expires: 2007-03-24
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Abstract

Abstract A structural cinderblock which has been split into two pieces which are held together by special initial channels which limit heat transmission; with insulating material centered in the block cavities and laid over grating to prevent heat loss due to convection.

Inventors

  • 👤 Lawrence H. Taylor

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 10:49
CPC Classifications
E; E04; E04C; E04C1/00; E04C1/40; E04C1/41

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 173 words
A cinderblock having parallel interior and exterior faces with a cavity space between the faces so structured as to retain its conventional shape and basic structural strength, but simultaneously to provide a much higher level of insulative effectiveness through its physical construction, said cinderblock including disparate front and back half portions of a block vertically split on a longitudinal plane parallel to the block exterior face of the block held both rigidly apart, and together in a fixed relationship by a multiplicity of vertical metal channels between the opposing halves of the assembled block, a vertical full height panel of non-porous semi-rigid insulating material placed within the cavity space dividing the cavity space, into two separate dead air spaces to abut the front and back block sections respectively, with said vertical metal channel connecting elements being provided with a multiplicity of vertical lines of slits of not more than 15,000 ths of an inch to, provide a discontinuity for purpose of restructuring heat flow through the center portion of the vertical structural channel.
Claim 2
Dependent Claim 173 words
A cinderblock having parallel interior and exterior faces with a cavity space between the faces so structured as to retain its conventional shape and basic structural strength, but simultaneously to provide a much higher level of insulative effectiveness through its physical construction, said cinderblock including disparate front and back half portions of a block vertically split on a longitudinal plane parallel to the block exterior face of the block held both rigidly apart, and together in a fixed relationship by a multiplicity of vertical metal channels between the opposing halves of the assembled block, a vertical full height panel of non-porous semi-rigid insulating material placed within the cavity space dividing the cavity space, into two separate dead air spaces to abut the front and back block sections respectively, with said vertical metal channel connecting elements being provided with a multiplicity of vertical lines of slits of not more than 15,000 ths of an inch to, provide a discontinuity for purpose of restructuring heat flow through the center portion of the vertical structural channel.
Claim 3
Dependent Claim 34 words
A cinderblock as defined in claim 1 including a sheet of sealing material buttered with mortar laid horizontally over the cinderblock to thus prevent vertical vertical air convection between the respective dead air cavity.
Claim 4
Dependent Claim 30 words
A cinderblock as defined in claim 1 in which the vertical slits do not compose linerally more than 80% or less than 50% of the length of the line slits.
Claim 5
Dependent Claim 27 words
A cinderblock as defined in claim 1 including a further insulation bat at the end of each block to form an insulative connector between an adjacent cinderblock.

References Cited (Backward Citations)

CA640752A Cited
US1962906A Cited
US2194047A Cited
US2212184A Cited
US2252155A Cited
FR1075695A Cited
US4263765A Cited
US4619098A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-05-24 1991-11-23 1992-05-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-05-24 1995-11-23 1996-05-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-05-24 1999-11-23 2000-05-24 $7700.00 Window Closed / Lapsed

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