Removable grate

• US 20080014022A1
• Filed: 04/24/2007
• Published: 01/17/2008
• Est. Priority Date: 04/24/2006
• Status: Active Grant

• Current Assignee: ZURN Water LLC (Zurn Elkay Water Solutions Corp.)
• Original Assignee: Zurn Industries Incorporated (Rexnord Corporation)
• Inventors: Ecklund, David, Dalton, Douglas, Wroblewski, Doug, Himes, Kevin, Slater, Patrick, Sanfilippo, Joseph
• Granted Patent: US 7,588,392 B2
• Time in Patent Office: Days
• US Class Current: 405/119
• CPC Class Codes: E03F 2005/063 with slidable or rotatable locking elements
• CPC Class Codes: E03F 2005/065 with elastic locking elements
• CPC Class Codes: E03F 5/06 Gully gratings

Abstract

A two-part grate assembly for a channeled drain trough. The grate assembly has a grate frame that receives a removable grate section. The grate frame has lugs with vertical projections extending therefrom that define securing recesses that assist in aligning and securing the grate frame atop a drain trough. Additionally, the present invention is directed to the use of an alignment bar that prevents the grate section from sliding out of operating position within the grate frame by restricting lateral movement of the grate section. Further, the present invention is directed to a method of providing a grate assembly for a channeled drain trough having a grate frame that is adapted to receive a removable grate section.

Claims

1. A removable grate assembly for a channeled drain trough comprising:

a grate frame having a first section defining a first section interior endwall and a first section exterior endwall and a second section defining a second section interior endwall and a second section exterior endwall, said first section interior endwall and said second section interior endwall connected by two opposing sidewalls, said first section extending inwardly toward said first section interior endwall to form an internal projection defining a receiving recess on a side of said first interior endwall, said second section extending inwardly toward said second section interior endwall to form an internal projection defining a receiving recess on said second interior endwall, and

a removable grate section having a first interior endwall, a first exterior endwall, a second interior endwall, and a second exterior endwall, said first interior endwall and said second interior endwall connected by two opposing sidewalls, said first exterior endwall having an external projection extending therefrom on a side of said first exterior endwall, said second exterior endwall having an external projection extending therefrom on a side of said second exterior endwall, said removable grate section removably received by said grate frame, wherein said external projection of said first exterior endwall is received within its corresponding receiving recess of said first interior endwall and said external projection of said second exterior endwall is received within its corresponding receiving recess of said second interior endwall.

2. The removable grate assembly of claim 1, wherein said receiving recess of said first section interior endwall of said grate frame being substantially rectangular in shape and said receiving recess of said second section interior endwall of said grate frame extending in a horizontal direction, said external projection of said first exterior endwall of said grate section being substantially rectangular in shape and said external projection of said second exterior endwall of said grate section extending in a horizontal direction.

3. The removable grate assembly of claim 1, wherein said grate frame has a lug extending from an exterior surface of an opposing sidewall.

4. The removable grate assembly of claim 3, wherein said lug has a projection depending therefrom, said lug and said projection defining a securing recess.

5. The removable grate assembly of claim 1, wherein said grate frame defines a slot on a first of said two opposing sidewalls that extends from an inner surface of an interior surface of said first opposing sidewall toward a respective outer surface of an exterior surface of said first opposing sidewall, wherein said grate frame defines a slot on a second of said two opposing sidewalls that extends from an inner surface of an interior surface of said second opposing sidewall toward a respective outer surface of an exterior surface of said second opposing sidewall.

6. The removable grate assembly of claim 5, further comprising an alignment bar that extends throughout the width of said grate frame, wherein said alignment bar engages said grate frame and said grate section to prevent lateral movement of said grate section secured within said grate frame when said alignment bar is removably received into said slots.

7. The removable grate assembly of claim 5, wherein said removable grate section has at least two interior ribwalls contained between said two opposing interior sidewalls, wherein said interior ribwalls have extending portions that protrude below a bottom surface of said grate section, wherein a hole spaced between said extending portions of said interior ribwalls extends from a top surface through said bottom surface of said grate section, said hole allowing access to manipulate said alignment bar.

8. The removable grate assembly of claim 7, wherein said alignment bar engages a clip attached to each respective extending portion of said interior ribwalls, said clip having first and second leg portions for releasably attaching said alignment bar thereto.

9. The removable grate assembly of claim 8, further comprising a tool having a hook end attached to an elongated portion, wherein said hook end of said tool captures a portion of said alignment bar to releasably engage said alignment bar with said clip upon lifting said alignment bar upwardly.

10. The removable grate assembly of claim 9, wherein said alignment bar has an intermediate portion positioned between a plurality of elastically deformable fins at opposing ends of said alignment bar, wherein upon releasable engagement of said alignment bar with said clip, said fins initially deform inwardly.

11. The removable grate assembly of claim 10, wherein after engagement of said alignment bar into said clip, said fins regain their original shape and become frictionally engaged with said clip.

12. The removable grate assembly of claim 10, wherein said center portion of said alignment bar is manufactured out of cast iron, ductile iron, stainless steel, or combinations thereof.

13. The removable grate assembly of claim 10, wherein said fins of said alignment bar are manufactured out of an elastomeric material.

14. A removable grate assembly comprising:

a grate frame having a body, said body defining an external surface and an internal surface, said internal surface defining a grate receiving recess, said body having a horizontally extending lug extending from said external surface and a projection depending from said lug defining a securing recess between a portion of said external surface, at least a portion of said lug and at least a portion of said projection; and

a grate received by said grate receiving recess.

20. The removable grate assembly of claim 14, wherein said lug has a free end and a connected end, said projection position between said lug free end and said lug connected end.

15. A removable grate assembly comprising:

a grate frame having a first section defining a first section interior endwall and a first section exterior endwall and a second section defining a second section interior endwall and a second section exterior endwall, said first section interior endwall and said second section interior endwall connected by two opposing sidewalls, said first section extending inwardly toward said first section interior endwall to form an internal projection defining a receiving recess on a side of said first interior endwall, said second section extending inwardly toward said second section interior endwall to form an internal projection defining a receiving recess on said second interior endwall,

a removable grate section having a first interior endwall, a first exterior endwall, a second interior endwall, and a second exterior endwall, said first interior endwall and said second interior endwall connected by two opposing sidewalls, said first exterior endwall having an external projection extending therefrom on a side of said first exterior endwall, said second exterior endwall having an external projection extending therefrom on a side of said second exterior endwall, said removable grate section removably received by said grate frame, wherein said external projection of said first exterior endwall mates with its corresponding receiving recess of said first interior endwall and said external projection of said second exterior endwall mates with its corresponding receiving recess of said second interior endwall, and

a drain trough that is substantially U-shaped having a hollow body portion and a ledge, said grate frame placed atop said ledge of said drain trough.

16. The removable grate assembly of claim 15, wherein said grate frame has a lug extending from an exterior surface of an opposing sidewall, said lug having a projection depending therefrom, said lug and said projection defining a securing recess, wherein said securing recess stabilizes and aligns said grate frame on said drain trough upon attachment of said grate frame upon said ledge of said drain trough.

17. A method for providing a removable grate assembly for a channeled drain trough, said method comprising the steps of:

a) providing;

i) a grate frame having a first section defining a first section interior endwall and a first section exterior endwall and a second section defining a second section interior endwall and a second section exterior endwall, said first section interior endwall and said second section interior endwall connected by two opposing sidewalls, said first section extending inwardly toward said first section interior endwall to form an internal projection defining a receiving recess on a side of said first interior endwall, said second section extending inwardly toward said second section interior endwall to form an internal projection defining a receiving recess on said second interior endwall, and

ii) a removable grate section having a first interior endwall, a first exterior endwall, a second interior endwall, and a second exterior endwall, said first interior endwall and said second interior endwall connected by two opposing sidewalls, said first exterior endwall having an external projection extending therefrom on a side of said first exterior endwall, said second exterior endwall having an external projection extending therefrom on a side of said second exterior endwall, said removable grate section removably received by said grate frame, wherein said external projection of said first exterior endwall is received within its corresponding receiving recess of said first interior endwall and said external projection of said second exterior endwall is received within its corresponding receiving recess of said second interior endwall, and

iii) an alignment bar,

b) aligning and placing said grate frame over a channeled drain trough;

c) inserting said grate section into said grate frame; and

d) inserting said alignment bar into a slot on a first of said two opposing sidewalls of said grate frame and into a slot on a second of said two opposing sidewalls of said grate frame;

thereby locking said grate section to said grate frame.

18. The method for providing a removable grate assembly of claim 17, wherein said alignment bar has a center portion positioned between a plurality of elastically deformable fins at opposing ends of said alignment bar, wherein upon releasable engagement of said alignment bar with said clip, said fins initially deform inwardly.

19. The method for providing a removable grate assembly of claim 18, further comprising a tool having a hook end attached to an elongated portion, wherein said hook end of said tool captures a portion of said alignment bar to releasably engage said alignment bar with said clip upon lifting said alignment bar upwardly, wherein disengagement of said alignment bar is achieved upon placement of said elongated portion of said tool through a hole extending from a top surface through a bottom surface of said grate section that is spaced between at least two interior ribwalls of said grate section having extending portions, pushing said alignment bar downwardly.