IP Library › Granted Patent US 12,365,550
Granted Patent B2
US 12,365,550 · App. 18/813,933 · Granted Jul 22, 2025

Conveyor transfer guards

Inventor: Mark Steven Pettinga (Grandville, MI)
Assignee: Flexible Steel Lacing Company
B65G47/66B65G2047/685
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Quick Facts
Patent No.
US 12,365,550
App. No.
18/813,933
Granted
Jul 22, 2025
Kind
B2
Abstract

In one aspect, a transfer guard member having a body for being positioned in a gap intermediate conveying surfaces, an upper portion of the body for spanning the gap and outer portions of the upper body for slidingly engaging the conveying surfaces, and a pair of spaced, resilient legs having distal end portions for resiliently and slidingly engaging the conveying surfaces. In another aspect, a transfer guard member having a body and at least one attachment member of the body configured for being detachably fixed to a mounting bar. The body has at least one recess adjacent the attachment member for receiving at least one attachment member of another transfer guard member fixed to the mounting bar so that upper transfer surfaces of the attachment members are adjacent one another.

Claims (63)

1. An apparatus for a conveyor system having curved, upstream and downstream conveying surfaces operable to convey an object in a downstream longitudinal direction across a gap between the upstream and downstream conveying surfaces, the apparatus comprising:

a body configured to be supported in the gap by the upstream and downstream conveying surfaces;

an upper portion of the body having an upstream contact portion for slidingly contacting the upstream conveying surface and a downstream contact portion for slidingly contacting the downstream conveying surface;

an upstream lower member depending from the upper portion and having an upstream lower free end portion to be positioned below a narrowest portion of the gap;

an upstream intermediate portion of the upstream lower member configured to extend in the narrowest portion of the gap spaced longitudinally from the upstream conveying surface to limit contact between the upstream lower member and the upstream conveying surface;

a downstream lower member depending from the upper portion and having a downstream lower free end portion to be positioned below the narrowest portion of the gap;

a downstream intermediate portion of the downstream lower member configured to extend in the narrowest portion of the gap spaced longitudinally from the upstream intermediate portion; and

the downstream intermediate portion configured to extend in the narrowest portion of the gap spaced longitudinally from the downstream conveying surface to limit contact between the downstream lower member and the downstream conveying surface.

2. The apparatus of claim 1 wherein the upstream lower member is operably connected to the upper portion at a first connection;

wherein the downstream lower member is operably connected the upper portion at a second connection; and

wherein the first and second connections are configured to be above the narrowest portion of the gap with the body supported in the gap on the upstream and downstream conveying surfaces.

3. The apparatus of claim 2 wherein the second connection is longitudinally spaced from the first connection along the upper portion of the body.

4. The apparatus of claim 2 wherein the upstream lower member includes an upstream transition portion and an upstream leg portion below the upstream transition portion;

wherein the first connection includes a direct connection between the upstream transition portion and the upper portion of the body;

wherein the downstream lower member includes a downstream transition portion and a downstream leg portion below the downstream transition portion; and

wherein the second connection includes a direct connection between the downstream transition portion and the upper portion of the body.

5. The apparatus of claim 1 wherein the upstream and downstream lower members are connected to the upper portion at longitudinally spaced apart locations so that the upstream and downstream members have a longitudinally extending gap therebetween.

6. The apparatus of claim 1 wherein the body includes a gap that extends longitudinally from the upstream lower member to the downstream lower member and that extends continuously perpendicular to the downstream longitudinal direction from the upper portion to the upstream and downstream lower free end portions.

7. The apparatus of claim 1 wherein the upstream lower member includes an upstream resilient portion and the downstream lower member includes a downstream resilient portion;

wherein the upstream and downstream resilient portions have an initial configuration wherein the upstream and downstream free end portions have a first longitudinal distance therebetween and a deflected configuration wherein the upstream and downstream free end portions have a second longitudinal distance therebetween that is narrower than the first longitudinal distance.

8. The apparatus of claim 7 wherein the upstream intermediate portion includes an upstream clearance surface for facing and being longitudinally spaced from the upstream conveying surface;

wherein the downstream intermediate portion includes a downstream clearance surface for facing and being longitudinally spaced from the downstream conveying surface; and

wherein the upstream and downstream clearance surfaces have a third longitudinal distance therebetween that is less than the first longitudinal distance.

9. The apparatus of claim 1 wherein the downstream lower member includes a downstream resilient portion including the downstream lower free end portion, the downstream resilient portion configured to permit movement of the downstream lower free end portion relative to the upper portion of the body;

wherein the downstream lower member includes a downstream transition portion directly connecting the downstream resilient portion to the upper portion.

10. The apparatus of claim 1 wherein the upstream lower member comprises an upstream resilient leg portion including the upstream lower free end portion; and

wherein the downstream lower member comprises a downstream resilient leg portion including the downstream lower free end portion.

11. The apparatus of claim 1 wherein the body has a unitary, one-piece construction.

12. An apparatus for a conveyor system having curved, upstream and downstream conveying surfaces operable to convey an object in a downstream longitudinal direction across a gap between the upstream and downstream conveying surfaces, the apparatus comprising:

a body configured to be supported in the gap by the upstream and downstream conveying surfaces;

an upper portion of the body having upstream and downstream contact portions for slidingly contacting the upstream and downstream conveying surfaces above a narrowest portion of the gap;

a lower portion of the body configured to be positioned below the narrowest portion of the gap to keep the body in the gap;

an intermediate portion of the body connecting the upper and lower portions of the body, the intermediate portion configured to extend in the narrowest portion of the gap spaced from the upstream and downstream conveying surfaces;

an upstream recessed portion of the body below the upstream contact portion and above the intermediate portion of the body, the upstream recessed portion of the body offset downstream of the upstream contact portion, the upstream recessed portion being at a first longitudinal offset distance from the upstream conveying surface with the body in the gap that is greater than a second longitudinal distance between the intermediate portion and the upstream conveying surface with the body in the gap;

a downstream recessed portion of the body below the downstream contact portion and above the intermediate portion of the body, the downstream recessed portion of the body offset upstream of the downstream contact portion, the downstream recessed portion being at a third longitudinal distance from the downstream conveying surface with the body in the gap that is greater than a fourth longitudinal distance between the intermediate portion and the downstream conveying surface with the body in the gap.

13. The apparatus of claim 12 wherein the body has opposite lateral sides and a width extending therebetween; and

wherein the upstream and downstream recessed portions of the body extend across the body for the entire width thereof.

14. The apparatus of claim 12 wherein the body includes an upstream lower member depending from the upper portion and a downstream lower member depending from the upper portion; and

wherein the intermediate portion of the body comprises intermediate portions of the upstream and lower members extending in the narrowest portion of the gap and spaced longitudinally from one another.

15. The apparatus of claim 12 wherein the body includes upstream and downstream lower members connected to the upper portion at longitudinally spaced apart locations; and

wherein the upstream and downstream lower members include the upstream and downstream recessed portions.

16. The apparatus of claim 12 wherein the body includes upstream and downstream lower members depending from the upper portion;

wherein the upstream lower member includes an upstream leg portion and an upstream transition portion connecting the upstream leg portion to the upper portion, the upstream transition portion including the upstream recessed portion; and

wherein the downstream lower member includes a downstream leg portion and a downstream transition portion connecting the downstream leg portion to the upper portion, the downstream transition portion including the downstream recessed portion.

17. The apparatus of claim 12 wherein the upper portion includes a central portion, an upstream outboard portion extending upstream longitudinally from the central portion and including the upstream contact portion, and a downstream outboard portion extending downstream longitudinally from the central portion and including the downstream contact portion;

wherein the upstream recessed portion is immediately adjacent and below the upstream outboard portion; and

wherein the downstream recessed portion is immediately adjacent and below the downstream outboard portion.

18. The apparatus of claim 12 wherein the upper portion includes a central portion, an upstream outboard portion including the upstream contact portion, and a downstream outboard portion including the downstream contact portion; and

wherein the upstream outboard portion is cantilevered from the central portion above the upstream recessed portion; and

wherein the downstream outboard portion is cantilevered from the central portion above the downstream recessed portion.

19. The apparatus of claim 12 wherein the body includes upstream and downstream lower members depending from the upper portion and spaced longitudinally from one another;

wherein the upstream member has upstream and downstream surface portions adjacent the upper portion and a thickness therebetween that is less than the first longitudinal distance.

20. The apparatus of claim 19 wherein the downstream member has upstream and downstream surface portions adjacent the upper portion and a thickness therebetween that is less than the third longitudinal distance.

21. The apparatus of claim 12 wherein the body upper portion includes an upstream lower flat surface below the upstream contact portion and extending longitudinally above the upstream recessed portion; and

wherein the body upper portion includes a downstream lower flat surface below the downstream contact portion and extending longitudinally above the downstream recessed portion.

22. The apparatus of claim 12 wherein the upper portion of the body has opposite lateral sides and a lateral width extending therebetween;

wherein the body includes an upstream lower member and a downstream lower member depending from the upper portion and spaced longitudinally from one another;

wherein the lower portion of the body includes upstream and downstream free end portions of the upstream and downstream lower members; and

wherein at least one of the upstream and downstream lower free end portions includes opposite lateral lower side surfaces and a lateral lower width extending therebetween that is shorter than the lateral width of the body.

23. The apparatus of claim 12 wherein the body includes an upstream lower member and a downstream lower member depending from the upper portion and spaced longitudinally from one another;

wherein the lower portion of the body includes upstream and downstream free end portions of the upstream and downstream lower members; and

wherein the body includes a gap that extends longitudinally from the upstream lower member to the downstream lower member and that extends continuously perpendicular to the longitudinal direction from the upper portion to the upstream and downstream lower free end portions.

24. The apparatus of claim 12 wherein the body has a unitary, one-piece construction.

Assignments (2)
SECURITY INTEREST Recorded Mar 6, 2026
From: FLEXIBLE STEEL LACING COMPANY
To: BANK OF AMERICA, N.A., AS LENDER
Reel/Frame 074003/0692 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 23, 2024
From: PETTINGA, MARK STEVEN
To: FLEXIBLE STEEL LACING COMPANY
Reel/Frame 068387/0787 →
Continuity (9)
Continuation 18213678 · Jun 23, 2023
Continuation 17537140 · Nov 29, 2021
Continuation 17170450 · Feb 8, 2021
Continuation 16782719 · Feb 5, 2020
Continuation 16356650 · Mar 18, 2019
Continuation 15483588 · Apr 10, 2017
Continuation In Part 14684304 · Apr 10, 2015
Provisional Application 61977866 · Apr 10, 2014
Related Publication 20250058978A1 · Feb 20, 2025
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