Protective rebar cover

• US 7,716,898 B1
• Filed: 05/12/2000
• Issued: 05/18/2010
• Est. Priority Date: 05/12/2000
• Status: Active Grant

• Current Assignee: Edmund M. Dunn
• Original Assignee: Edmund M. Dunn
• Inventors: Dunn, Edmund M.
• Primary Examiner(s): A, PHI DIEU TRAN
• Application Number:
  US09/569,826
• Time in Patent Office: 3,658 Days
• Field of Search: 523/01, 523/00, 522/891, 526/89, 526/77, 526/79, 526/87, 404/135, 404/136, 248/68.1, 248/49, 248/62
• US Class Current: 52/689
• CPC Class Codes: E04C 5/161 Protective caps for the ends of reinforcing bars
• CPC Class Codes: E04G 21/32 Safety or protective measures for persons during the construction of buildings relating to scaffolds E04G5/00; climbing tools, e.g. climbing irons for masts A63B27/00; ropes or belts for life saving A62B1/16, A62B35/00
• CPC Class Codes: E04G 21/3252 Protections, e.g. cover, caps, against impaling on starter reinforcement bars

Abstract

A rebar safety protective cover for use on the projecting free end of concrete reinforcing bar to prevent impact injuries comprising:

• • (a) a hollow cylindrical body closed at one end and open at the other,
  • (b) a flat overhanging impact head of substantial extent projecting laterally outwardly beyond said closed end of the body,
  • said body and impact head being of a thickness and integrally formed of a plastic material to provide a protective cover which passes the Cal OSHA drop test when the rebar is positioned within said protective cover at an angle such that the free end of the rebar abuts the inside lateral extremity of said closed end.

Claims

1. A rebar safety protective cover for use on the projecting free end of concrete reinforcing bar to prevent impact injuries consisting of:

(a) a hollow cylindrical body closed at one end and open at the other,

(b) an overhanging impact head of substantial extent projecting laterally outwardly beyond said closed end of the body,

said body and impact head being of a thickness and integrally formed of a plastic material to provide a protective cover which passes the Cal OSHA drop test when the rebar is positioned within said protective cover in direct contact with said plastic material and at an angle such that the free end of the rebar abuts the inside diametrical lateral extremity of said closed end.

2. A rebar safety protective cover for use on the projecting free end of concrete reinforcing bar to prevent impact injuries consisting essentially of:

(a) a hollow cylindrical body closed at one end and open at the other,

(b) an overhanging impact head of substantial extent projecting laterally outwardly beyond said closed end of the body,

said body and impact head being of a thickness and integrally formed of a high density plastic material to provide a protective cover which passes the Cal OSHA drop test when the rebar is positioned within said protective cover in direct contact with said plastic material and at an angle such that the free end of the rebar abuts the inside diametrical lateral extremity of said dosed end and wherein the plastic material is a mixture of polyethylenes, one having molecular weight in the range from about 2.5×

10⁵ to about 15×

10⁵ and another a molecular weight in the range above about 15×

10⁵, said rebar safety protective cover being free of a metal seat.

3. A rebar safety protective cover for use on the projecting free end of concrete reinforcing bar to prevent impact injuries consisting essentially of:

(a) a hollow cylindrical body closed at one end and open at the other,

(b) an overhanging impact head of substantial extent projecting laterally outwardly beyond said closed end of the body,

said body and impact head being of a thickness and integrally formed of a high density plastic material to provide a protective cover which passes the Cal OSHA drop test when the rebar is positioned within said protective cover in direct contact with said plastic material and at an angle such that the free end of the rebar abuts the inside diametrical lateral extremity of said closed end, said cylindrical body having an exterior wall with a radially extending annular ring surrounding and thickening said wall at said closed end, said rebar safety protective cover being free of a metal seat.

4. The rebar safety protective caps of claim 3 wherein the plastic material is a mixture of polyethylenes, one having a molecular weight in the range from about 2.5×

10⁵ to about 15×

10⁵, and another a molecular weight in the range above about 15×

10⁵.

5. The rebar safety protective cover of claim 4 wherein polyethylene has a density of about 0.945 and the other polyethylene a density of about 0.97.

6. The rebar safety protective cover of claim 3 wherein the first mentioned polyethylene is present in a weight amount of about 95% and the second mentioned in a weight of about 5%.

7. A rebar safety protective cover for use on the projecting free end of concrete reinforcing bar to prevent impact injuries consisting essentially of:

(a) a hollow cylindrical body closed at one end and open at the other,

(b) an overhanging impact head of substantial extent projecting laterally outwardly beyond said closed end of the body,

said body and impact head being of a thickness and integrally formed of a high density plastic material to provide a protective cover which passes the Cal OSHA drop test when the rebar is positioned within said protective cover in direct, contact with said plastic material and at an angle such that the free end of the rebar abuts the inside diametrical lateral extremity of said closed end, said rebar safety protective cover being free of a metal seat.

8. The rebar safety protective caps of claim 7 wherein the plastic material is a mixture of polyethylenes, one having a density of about 0.945 and another of about 0.97.

9. The rebar safety protective caps of claim 8 wherein the first mentioned polyethylene is present at about 95 weight percentage and the other at about 5 weigh percent.

10. The rebar safety protective cover of claim 7 wherein said cylindrical body has a cylindrical wall with a radially extending annular ring surrounding and thickening said wall at said closed end.

11. The rebar safety protective cover of claim 7 wherein said impact head has a flat outer surface for receiving impact.

12. The combination of a rebar used to reinforce concrete wherein the rebar has an exposed free end and a safety protective cover is present on said exposed free end, said protective cover consisting essentially of:

(a) a hollow cylindrical body closed at one end and open at the other,

(b) an overhanging impact head of substantial extent projecting laterally outwardly beyond said closed end of the body,

said body and impact head being of a thickness and integrally formed of a high density plastic material to provide a protective cover which passes the Cal OSHA drop test when the rebar is positioned within said protective cover in direct contact with said plastic material and at an angle such that the free end of the rebar abuts the inside diametrical lateral extremity of said closed end, said rebar safety protective cover being free of a metal seat.