US4749302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spacing pad
Assignee: Individual
•
Filing: 1983-05-16
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Granted: 1988-06-07
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Expires: 2003-05-16
Abstract
Abstract The invention provides in the upper portion of the spacer pad spacer ribs 7. These ribs are notched in such a manner that they will lock with alignment ribs 10 that are provided in the bottom portion of each spacer pad. When the pads are stacked, lateral movement or shifting is prevented because alignment ribs 10 fit snugly into the notches 12 of spacer ribs 7 and provide a very stable support. This alignment and interlocking of alignment ribs 10 with spacer ribs 7 is a critical feature of this invention.
Inventors
- 👤 Robert G. DeClute
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:20
CPC Classifications
E; E01; E01C; E01C3/00; E01C3/006
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
156 words
A spacing pad comprising a four breakaway quadrant structure, spacing ribs positioned intermediate each of said quadrants, and alignment ribs integral therewith, said quadrants connected by frangible means positioned adjacent each of said spacing ribs, each of said quadrants adapted to contain at least two spacing ribs after being separated one from each other, each of said quadrants comprising a quadrant floor with a grid structure extending upwardly therefrom, said floor containing drain apertures adjacent at least some of said upwardly extending grid structures, said apertures adapted to accomodate the flow of liquids therethrough, said floor having a raised channel extending diagonally from the center of said spacing pad to the opposite corner of each of said quadrants positioned immediately below said spacing ribs are said alignment ribs adapted to interlock and mate with said spacer ribs when at least a portion of said spacing pad is stacked with additional spacing pads having the identical configuration.
Claim 2
Dependent Claim
156 words
A spacing pad comprising a four breakaway quadrant structure, spacing ribs positioned intermediate each of said quadrants, and alignment ribs integral therewith, said quadrants connected by frangible means positioned adjacent each of said spacing ribs, each of said quadrants adapted to contain at least two spacing ribs after being separated one from each other, each of said quadrants comprising a quadrant floor with a grid structure extending upwardly therefrom, said floor containing drain apertures adjacent at least some of said upwardly extending grid structures, said apertures adapted to accomodate the flow of liquids therethrough, said floor having a raised channel extending diagonally from the center of said spacing pad to the opposite corner of each of said quadrants positioned immediately below said spacing ribs are said alignment ribs adapted to interlock and mate with said spacer ribs when at least a portion of said spacing pad is stacked with additional spacing pads having the identical configuration.
Claim 3
Dependent Claim
34 words
The spacing pad of claim 1 wherein said spacing ribs have a vertically ridged configuration comprising abutting portions and recessed portions, said alignment ribs adapted to fit into and mate with said recessed portions.
Claim 4
Dependent Claim
46 words
The spacing pad of claim 1 wherein each quadrant is separated one from the other by two spacing ribs, each spacing rib connected to the outer walls of two adjacent quadrants, one connection being by a frangible member, the other connection by a permanent non-frangible member.
Claim 5
Dependent Claim
36 words
The spacing pad of claim 1 wherein adjacent spacing ribs are connected to each other by a frangible member, and are connected to the outer wall of each quadrant by one frangible and one non-frangible member.
Claim 6
Dependent Claim
56 words
The spacing pad of claim 1 wherein said alignment ribs are substantially triangular shaped portions extending diagonally downwardly from approximately the middle of the bottom of the outer wall of said quadrants, each of said alignment ribs adapted to fit and lock into recesses located in each of the upwardly extending portions of said spacing ribs.
Claim 7
Dependent Claim
18 words
The spacing pad of claim 1 wherein each of said spacer ribs have at least two recessed portions.
Claim 8
Dependent Claim
125 words
A spacing pad comprising four quadrants, spacing ribs, alignment ribs, and a raised surface channel, each of said quadrants comprising a quadrant floor having upwardly extending walls forming a grid structure, said floor having apertures uniformly positioned therein to accommodate the flow of liquids therethrough, said spacing ribs located between each quadrant and at least one of said spacing ribs adapted to be frangibly separated from one of said quadrants, said alignment ribs extending downwardly from the base of said spacing ribs and connected at its lowest portion to a wall of said quadrant, said alignment ribs extending from approximately the midpoint of the base of said spacing ribs, said channel located in an elevated portion of said floor and extending diagonally across said floor.
Claim 9
Dependent Claim
125 words
A spacing pad comprising four quadrants, spacing ribs, alignment ribs, and a raised surface channel, each of said quadrants comprising a quadrant floor having upwardly extending walls forming a grid structure, said floor having apertures uniformly positioned therein to accommodate the flow of liquids therethrough, said spacing ribs located between each quadrant and at least one of said spacing ribs adapted to be frangibly separated from one of said quadrants, said alignment ribs extending downwardly from the base of said spacing ribs and connected at its lowest portion to a wall of said quadrant, said alignment ribs extending from approximately the midpoint of the base of said spacing ribs, said channel located in an elevated portion of said floor and extending diagonally across said floor.
Claim 10
Dependent Claim
19 words
The spacing pad of claim 7 wherein said quadrants are adapted to be easily separated one from the other.
Claim 11
Dependent Claim
34 words
The spacing pad of claim 7 wherein said spacing ribs have a vertically ridged configuration comprising abutting portions and recessed portions, said alignment ribs adapted to fit into and mate with said recessed portions.
Claim 12
Dependent Claim
46 words
The spacing pad of claim 7 wherein each quadrant is separated one from the other by two spacing ribs, each spacing rib connected to the outer walls of two adjacent quadrants, one connection being by a frangible member, the other connection by a permanent non-frangible member.
Claim 13
Dependent Claim
36 words
The spacing pad of claim 7 wherein adjacent spacing ribs are connected to each other by a frangible member, and are connected to the outer wall of each quadrant by one frangible and one non-frangible member.
Claim 14
Dependent Claim
60 words
The spacing pad of claim 7 wherein said alignment ribs are triangular shaped portions extending downwardly from approximately the middle of the bottom portion of said spacing ribs to the bottom of the outer wall of said quadrants, each of said alignment ribs adapted to fit into recesses located in each of the upwardly extending portions of said spacing ribs.
Claim 15
Dependent Claim
18 words
The spacing pad of claim 7 wherein each of said spacer ribs have at least two recessed portions.
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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) | 1991-06-07 | 1991-12-07 | 1992-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-07 | 1995-12-07 | 1996-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-07 | 1999-12-07 | 2000-06-07 | $7700.00 | Window Closed / Lapsed |