US3555980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing inserts for joints in concrete
Assignee: Individual
•
Filing: 1968-07-26
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Granted: 1971-01-19
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Expires: 1988-07-26
Abstract
Abstract An elastomeric insert for sealing a variant joint space in concrete pavement, extruded with the operative ordinates upset in such manner as to cause deflection when compressed in the joint space with the top surfaces aligned horizontally and converging into the vertical plane of symmetry, the inboard portions thereof together with a supporting stem being motionable vertically as the joint space diminishes or enlarges ambiently, the stem being load-supported by an opposing substructure. Also disclosed are means for controlling the described vertical motion relative to changes in joint width, for reinforcing portions of inserts of this general type including X-metal strip, and for overlaying the exposable surfaces of such inserts.
Inventors
- 👤 Donald F Dreher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:52
CPC Classifications
E; E01; E01C; E01C11/00; E01C11/02; E01C11/04; E01C11/12; E01C11/126
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
190 words
A compressible insert for sealing a variant joint space such as that which occurs between sections of concrete paving said insert comprising, and in combination: a. two flexural upper sections opposed in symmetry, having a central junction and extending upward and outward from said junction to define corner extremities; b. a central stem conjoint with and extending downward from said junction, said stem having lateral extensions upon opposite sides to form a T-section; c. opposed guiding means to engage the respective edges of said extensions, said guiding means having undersurfaces which incline downward and outward symmetrically to provide diagonally slanted guide faces for said edges when the insert is installed in the joint space, thereby to position the relative depth of said stem ambiently as a function of deviation in width of the variant joint space; d. resilient means to exert an upward force against said stem to maintain operative engagement of said edges with said guide faces; and e. supporting means upon either side to maintain a fixed relationship between said corner extremities and said guiding means respectively, and to secure the combination when installed in the joint space.
Claim 2
Dependent Claim
190 words
A compressible insert for sealing a variant joint space such as that which occurs between sections of concrete paving said insert comprising, and in combination: a. two flexural upper sections opposed in symmetry, having a central junction and extending upward and outward from said junction to define corner extremities; b. a central stem conjoint with and extending downward from said junction, said stem having lateral extensions upon opposite sides to form a T-section; c. opposed guiding means to engage the respective edges of said extensions, said guiding means having undersurfaces which incline downward and outward symmetrically to provide diagonally slanted guide faces for said edges when the insert is installed in the joint space, thereby to position the relative depth of said stem ambiently as a function of deviation in width of the variant joint space; d. resilient means to exert an upward force against said stem to maintain operative engagement of said edges with said guide faces; and e. supporting means upon either side to maintain a fixed relationship between said corner extremities and said guiding means respectively, and to secure the combination when installed in the joint space.
Claim 3
Dependent Claim
23 words
The combination as claimed in claim 1, wherein said supporting means are of rigid composition and contoured to provide said opposed guiding means.
Claim 4
Dependent Claim
24 words
The sealing insert as claimed in claim 1, wherein said stem comprises a strip of metal consisting of a connected series of X-shaped segments.
Claim 5
Dependent Claim
20 words
The sealing insert as claimed in claim 1 including, and in combination, a reinforcing strip positioned proximate said central junction.
Claim 6
Dependent Claim
108 words
In a compressible insert for sealing a variant joint space having opposed vertical faces such as occur between sections of concrete paving, wherein said insert is of the type adapted to be subjected to deformation comprising a resilient extrusion having a patterned cross-sectional structure including upper and lower pairs of lateral sections opposed in symmetry and extended outward to engage said faces, and connecting means oriented vertically conjoint with intermediate portions of said pairs, the improvement wherein said connecting means comprises an embedded strip of expanded metal forming a conjoint series of X-shaped segments adapted to stabilize said structure when the compressible insert is in said joint space.
Claim 7
Dependent Claim
108 words
In a compressible insert for sealing a variant joint space having opposed vertical faces such as occur between sections of concrete paving, wherein said insert is of the type adapted to be subjected to deformation comprising a resilient extrusion having a patterned cross-sectional structure including upper and lower pairs of lateral sections opposed in symmetry and extended outward to engage said faces, and connecting means oriented vertically conjoint with intermediate portions of said pairs, the improvement wherein said connecting means comprises an embedded strip of expanded metal forming a conjoint series of X-shaped segments adapted to stabilize said structure when the compressible insert is in said joint space.
Claim 8
Dependent Claim
91 words
In a compressible insert for sealing a variant joint space having opposed vertical spaces such as occur between sections of concrete paving, wherein said insert is of the type which comprises an elastomeric extrusion having a patterned cross-sectional structure including upper and lower pairs of lateral sections opposed in symmetry and extended outward to engage said faces, and means to conjoin said pairs in spaced relationship, the improvement wherein said lower pair of lateral sections comprises an embedded metal element cleaved and expanded to form a connected series of X-shaped segments.
Claim 9
Dependent Claim
91 words
In a compressible insert for sealing a variant joint space having opposed vertical spaces such as occur between sections of concrete paving, wherein said insert is of the type which comprises an elastomeric extrusion having a patterned cross-sectional structure including upper and lower pairs of lateral sections opposed in symmetry and extended outward to engage said faces, and means to conjoin said pairs in spaced relationship, the improvement wherein said lower pair of lateral sections comprises an embedded metal element cleaved and expanded to form a connected series of X-shaped segments.
Claim 10
Dependent Claim
55 words
A compressible insert as claimed in claim 6, wherein said element consists of spring metal and the legs of each said X-shaped segments increase in width toward the medial portion thereof to provide a gradingly flexural lower pair of lateral sections with its medial portion the more rigid and its peripheral portions the more flexible.
Claim 11
Dependent Claim
138 words
In a compressible insert for sealing a variant joint space having opposed vertical faces such as occur between sections of concrete paving, wherein said insert is of the type comprising a resilient extrusion having a patterned cross-sectional structure including upper and lower pairs of lateral sections opposed in symmetry and extended outward to engage said faces, connecting means oriented vertically conjoint with said pairs, said upper pair of lateral sections having an exposed central junction, and in which such an extrusion is adapted to be inserted forcibly into a prepared joint space by a relatively narrow edged installation tool, the improvement wherein said insert includes, and in combination, a reinforcing member positioned proximate said central junction and having a composition disparate from that of said upper sections to prevent damage to the extrusion by said tool during installation.
Claim 12
Dependent Claim
138 words
In a compressible insert for sealing a variant joint space having opposed vertical faces such as occur between sections of concrete paving, wherein said insert is of the type comprising a resilient extrusion having a patterned cross-sectional structure including upper and lower pairs of lateral sections opposed in symmetry and extended outward to engage said faces, connecting means oriented vertically conjoint with said pairs, said upper pair of lateral sections having an exposed central junction, and in which such an extrusion is adapted to be inserted forcibly into a prepared joint space by a relatively narrow edged installation tool, the improvement wherein said insert includes, and in combination, a reinforcing member positioned proximate said central junction and having a composition disparate from that of said upper sections to prevent damage to the extrusion by said tool during installation.
Claim 13
Dependent Claim
53 words
The combination as claimed in claim 8, wherein said reinforcing member extends downward from said central junction and comprises a connected series of X-shaped segments, the upper edge of said member which is proximate said central junction having formed crotches at intervals to transmit the force of said tool distributively into said insert.
Claim 14
Dependent Claim
64 words
The combination as claimed in claim 8, wherein said member overlays all of the exposable surface of said upper sections and includes means for securing the edges of said member to said extrusion, whereby, when said combination is installed in the joint space, the overlaid member will comprise a protective sheath conforming essentially to the surface contours of the upper portion of the extrusion.
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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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |