IP Library Granted Patent US 6,948,291
Granted Patent B2
US 6,948,291 · App. 10/726,051 · Granted Sep 27, 2005

Plastic slab bolster upper

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Quick Facts
Patent No.
US 6,948,291
App. No.
10/726,051
Granted
Sep 27, 2005
Kind
B2
Abstract

A slab bolster upper for supporting rebar in a reinforced concrete structure while the concrete is poured and thereafter cures, is of molded plastic construction and is formed with horizontal and vertical voids that facilitate concrete placement and break up potential shear planes. Opposite ends of each unit are provided with complementary buckles to interconnect with like units to form a continuous support of desired length.

Claims (6)

1. A slab bolster upper for supporting rebar in a reinforced concrete structure comprising:

a substantially planar elongated base having upper and lower surfaces; elongated ribs projecting upwardly from opposite edges of said base;

a substantially planar elongated web projecting substantially perpendicularly from said upper surface of said base substantially medially thereof;

voids formed through said base and said web with said voids comprising a major portion of said base and said web and sized to facilitate free flow of concrete therethrough, whereby concrete, during placement thereof, may flow freely through and around said base and said web;

a rebar-engaging cap mounted on an outer edge of said planar web and extending in substantially parallel relationship to said base; and

complementary buckles formed on opposite ends of said base and said cap for interconnecting said slab bolster upper with like units.

Assignments (26)
RELEASE OF SECURITY INTEREST Recorded Jul 5, 2023
From: PNC BANK, NATIONAL ASSOCIATION
To: DAYTON SUPERIOR CORPORATION
Reel/Frame 064150/0118 →
RELEASE OF SECURITY INTEREST Recorded Jul 5, 2023
From: CANTOR FITZGERALD SECURITIES
To: DAYTON SUPERIOR CORPORATION
Reel/Frame 064150/0901 →
SECURITY INTEREST Recorded Dec 29, 2020
From: DAYTON SUPERIOR CORPORATION
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 054767/0078 →
RELEASE OF SECURITY INTEREST Recorded Dec 29, 2020
From: PATHLIGHT CAPITAL FUND I LP
To: DAYTON SUPERIOR CORPORATION
Reel/Frame 054767/0601 →
RELEASE OF SECURITY INTEREST (REEL/FRAME 047525/0143) Recorded Dec 6, 2019
From: THE BANK OF NEW YORK MELLON, AS COLLATERAL AGENT
To: DAYTON SUPERIOR CORPORATION
Reel/Frame 051210/0608 →
SECURITY INTEREST Recorded Dec 6, 2019
From: DAYTON SUPERIOR CORPORATION
To: CANTOR FITZGERALD SECURITIES, AS COLLATERAL AGENT
Reel/Frame 051198/0248 →
RELEASE OF SECURITY INTEREST RECORDED AT REEL/FRAME - : 23449-0223 Recorded Mar 19, 2019
From: BANK OF AMERICA, N.A.
To: DAYTON SUPERIOR CORPORATION
Reel/Frame 049911/0382 →
SECURITY INTEREST Recorded Mar 13, 2019
From: DAYTON SUPERIOR CORPORATION
To: PATHLIGHT CAPITAL FUND I LP
Reel/Frame 048585/0417 →
ASSIGNMENT OF SECURITY INTEREST Recorded Sep 12, 2018
From: DEUTSCHE BANK AG NEW YORK BRANCH
To: THE BANK OF NEW YORK MELLON
Reel/Frame 047525/0143 →
SECURITY INTEREST Recorded Feb 13, 2017
From: DAYTON SUPERIOR CORPORATION
To: DEUTSCHE BANK AG NEW YORK BRANCH
Reel/Frame 041242/0518 →
RELEASE OF SECURITY INTEREST Recorded Nov 21, 2016
From: GUGGENHEIM CORPORATE FUNDING, LLC (AS SUCCESSOR IN INTEREST TO SILVER POINT FINANCE, LLC)
To: DAYTON SUPERIOR CORPORATION
Reel/Frame 040846/0915 →
NOTICE OF SUBSTITUTION OF COLLATERAL AGENT IN PATENTS Recorded Jun 29, 2012
From: SILVER POINT FINANCE, LLC
To: GUGGENHEIM CORPORATE FUNDING, LLC, AS COLLATERAL AGENT
Reel/Frame 028486/0908 →
SECURITY AGREEMENT Recorded Oct 30, 2009
From: DAYTON SUPERIOR CORPORATION
To: BANK OF AMERICA, N.A.
Reel/Frame 023449/0223 →
PATENT SECURITY AGREEMENT Recorded Oct 26, 2009
From: DAYTON SUPERIOR CORPORATION
To: SILVER POINT FINANCE, LLC
Reel/Frame 023419/0459 →
RELEASE OF SECURITY INTEREST RECORDED AT REEL 020593 FRAME 0629 Recorded Oct 26, 2009
From: GENERAL ELECTRIC CAPITAL CORPORATION
To: DAYTON SUPERIOR CORPORATION
Reel/Frame 023419/0548 →
RELEASE OF SECURITY INTEREST RECORDED AT REEL 020593, FRAME 0617 AND REEL 022354, FRAME 0313 Recorded Oct 26, 2009
From: GENERAL ELECTRIC CAPITAL CORPORATION
To: DAYTON SUPERIOR CORPORATION
Reel/Frame 023419/0560 →
RELEASE OF DEBTOR-IN-POSSESSION SECURITY INTEREST RECORDED AT REEL 022757, FRAME 0465 Recorded Oct 26, 2009
From: GENERAL ELECTRIC CAPITAL CORPORATION
To: DAYTON SUPERIOR CORPORATION
Reel/Frame 023419/0989 →
DEBTOR-IN-POSSESSION SECURITY AGREEMENT Recorded Jun 1, 2009
From: DAYTON SUPERIOR CORPORATION
To: GENERAL ELECTRIC CAPITAL CORPORATION
Reel/Frame 022757/0465 →
RELEASE OF SECURITY INTEREST AT REEL/FRAME NO. 18934/0578 Recorded Mar 6, 2008
From: GENERAL ELECTRIC CAPITAL CORPORATION
To: DAYTON SUPERIOR CORPORATION
Reel/Frame 020613/0240 →
SECURITY INTEREST PURSUANT TO THE REVOLVING CREDIT AGREEMENT Recorded Mar 4, 2008
From: DAYTON SUPERIOR CORPORATION
To: GENERAL ELECTRIC CAPITAL CORPORATION, AS ADMINISTRATIVE AGENT
Reel/Frame 020593/0617 →
SECURITY INTEREST PURSUANT TO THE TERM LOAN CREDIT AGREEMENT Recorded Mar 4, 2008
From: DAYTON SUPERIOR CORPORATION
To: GENERAL ELECTRIC CAPITAL CORPORATION, AS ADMINISTRATIVE AGENT AND COLLATERAL AGENT
Reel/Frame 020593/0629 →
CHANGE OF NAME Recorded Feb 18, 2008
From: DAYTON SUPERIOR DELAWARE CORPORATION
To: DAYTON SUPERIOR CORPORATION (A DELAWARE CORPORATION)
Reel/Frame 020518/0453 →
SECURITY AGREEMENT Recorded Feb 27, 2007
From: DAYTON SUPERIOR CORPORATION (A DELAWARE CORPORATION)
To: GENERAL ELECTRIC CAPITAL CORPORATION
Reel/Frame 018934/0578 →
MERGER Recorded Jan 4, 2007
From: DAYTON SUPERIOR CORPORATION
To: DAYTON SUPERIOR DELAWARE CORPORATION (D/B/A DAYTON SUPERIOR CORPORATION)
Reel/Frame 018700/0913 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 27, 2006
From: HASLEM, DALE; LEE, KEN
To: AZTEC CONCRETE ACCESSORIES, INC.
Reel/Frame 018668/0952 →
MERGER Recorded Dec 27, 2006
From: AZTEC CONCRETE ACCESSORIES, INC.
To: DAYTON SUPERIOR CORPORATION
Reel/Frame 018668/0978 →