IP Library Granted Patent US 8,695,222
Granted Patent B2
US 8,695,222 · App. 13/189,905 · Granted Apr 15, 2014

Power operated rotary knife

Inventors: Jeffrey A. Whited (Amherst, OH); Nicholas A. Mascari (Wellington, OH)
Assignee: Bettcher Industries, Inc.
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Quick Facts
Patent No.
US 8,695,222
App. No.
13/189,905
Granted
Apr 15, 2014
Kind
B2
Abstract

A power operated rotary knife ( 100 ) including: an annular rotary knife blade ( 300 ) including a knife blade bearing surface ( 319 ); a blade housing ( 400 ) defining a blade housing bearing surface ( 459 ); and a blade-blade housing bearing structure ( 500 ) disposed between the knife blade bearing surface ( 319 ) and the blade housing bearing surface ( 459 ). The rolling bearing strip ( 502 ) traverses through an annular passageway ( 504 ) defined between the knife blade bearing surface ( 319 ) and the blade housing bearing surface ( 459 ) to secure the knife blade ( 300 ) to the blade housing ( 400 ) and support the knife blade for rotation about a central axis (R) with respect to the blade housing ( 400 ). The blade housing further includes a cleaning port including an entry opening and an exit opening, the exit opening being in the inner wall and in fluid communication with the blade housing bearing surface.

Claims (28)

1. An annular blade housing for a power operated rotary knife, the blade housing comprising an inner wall and an outer wall, the inner wall defining a blade housing bearing surface, the blade housing further including a cleaning port including an entry opening and an exit opening, the exit opening being in the inner wall and in fluid communication with the blade housing bearing surface.

2. The annular blade housing of claim 1 wherein the blade housing is a one-piece, continuous annular blade housing.

3. The annular blade housing of claim 1 wherein the blade housing bearing surface comprises a bearing race that extends into the inner wall and the exit opening intersects and opens into the blade housing bearing race.

4. The annular blade housing of claim 1 wherein the cleaning port extends radially between an entry opening in outer wall and the exit opening in the inner wall.

5. The annular blade housing of claim 4 wherein the blade housing includes a mounting section and a blade support section, the entry opening of the cleaning port being disposed on an outer wall of the mounting section and the exit opening being disposed on an inner wall of the mounting section.

6. A tower operated rotary knife comprising:

an annular rotary knife blade including a wall defining a knife blade bearing surface;

an annular blade housing comprising an inner wall and an outer wall, the inner wall defining a blade housing bearing surface on the inner wall;

a blade-blade housing bearing structure disposed between the knife blade bearing surface and the blade housing bearing surface, the blade-blade housing bearing structure supporting the knife blade for rotation with respect to the blade housing about a knife blade central axis; and

the blade housing further including a cleaning port extending radially between the inner wall and the outer wall, cleaning port including an entry opening and an exit opening, the exit opening being in the inner wall and in fluid communication with the blade housing bearing surface.

7. The power operated rotary knife of claim 6 wherein the blade housing is a one-piece, continuous annular blade housing.

8. The power operated rotary knife of claim 6 wherein the blade housing bearing surface comprises a bearing race that extends into the inner wall and the exit opening intersects and opens into the blade housing bearing race.

9. The power operated rotary knife of claim 6 wherein the cleaning port extends radially between an entry opening in outer wall and the exit opening in the inner wall.

10. The power operated rotary knife of claim 9 wherein the blade housing includes a mounting section and a blade support section, the entry opening of the cleaning port being disposed on an Outer wall of the mounting section and the exit opening being disposed on an inner wall of the mounting section.

11. An annular blade housing for a power operated rotary knife, the blade housing comprising an inner wail and an outer wall, the inner wall defining a blade housing bearing surface, the blade housing further including a blade housing plug opening extending between and through the inner wall and the outer wall, an end of the blade housing plug opening at the inner wall intersecting the blade housing bearing surface to provide access to the blade housing bearing surface through the blade housing plug opening, and a blade housing plug configured to be releasably secured within the blade housing plug opening.

12. The annular blade housing of claim 11 wherein the blade housing is a one-piece, continuous annular blade housing.

13. The annular blade housing of claim 11 wherein the blade housing bearing surface comprises a bearing race that extends into the inner wall and the end of the blade housing plug opening at the inner wall intersecting the blade housing bearing race.

14. The annular blade housing of claim 11 wherein the blade housing includes a mounting section and a blade support section, the blade housing plug opening extending between and through an inner wall and an outer wall of the mounting section.

15. The annular blade housing of claim 14 wherein the blade housing plug is pivotally coupled to the blade housing mounting section.

16. A power operated rotary knife comprising:

an annular rotary knife blade including a wall defining a knife blade bearing surface;

an annular blade housing comprising an inner wall and an outer wall, the inner wall defining a blade housing bearing surface;

a blade-blade housing bearing structure disposed between the knife blade bearing surface and the blade housing bearing surface, the blade-blade housing bearing structure supporting the knife blade for rotation with respect to the blade housing about a knife blade central axis; and

wherein the blade housing further includes a blade housing plug opening extending between and through the inner wall and the outer wall, an end of the blade housing plug opening at the inner wall intersecting the blade housing bearing surface to provide access to the blade housing bearing surface through the blade housing plug opening, and a blade housing plug configured to be releasably secured within the blade housing plug opening.

17. The power operated rotary knife of claim 16 wherein the blade housing is a one-piece, continuous annular blade housing.

18. The power operated rotary knife of claim 16 wherein the blade housing bearing surface comprises a bearing race that extends into the inner wall and the end of the blade housing plug opening at the inner wall intersecting the blade housing bearing race.

19. The power operated rotary knife of claim 16 wherein the blade housing includes a mounting section and a blade support section, the blade housing plug opening extending between and through an inner wall and an outer wall of the mounting section.

20. The power operated rotary knife of claim 19 wherein the blade housing plug is pivotally coupled to the blade housing mounting section.

Assignments (6)
TERMINATION AND RELEASE OF SECOND LIEN SECURITY INTEREST IN PATENT RIGHTS Recorded Dec 9, 2025
From: UBS AG, STAMFORD BRANCH
To: BETTCHER INDUSTRIES, INC.; CANTRELL GAINCO GROUP INC.; EXSURCO MEDICAL, INC.; ICB, L.L.C.
Reel/Frame 073917/0220 →
SECURITY INTEREST IN PATENT RIGHTS - FIRST LIEN Recorded Dec 27, 2021
From: BETTCHER INDUSTRIES, INC.; CANTRELL GAINCO GROUP INC.; EXSURCO MEDICAL, INC.; ICB, L.L.C.
To: UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT
Reel/Frame 058592/0717 →
SECURITY INTEREST IN PATENT RIGHTS - SECOND LIEN Recorded Dec 27, 2021
From: BETTCHER INDUSTRIES, INC.; CANTRELL GAINCO GROUP INC.; EXSURCO MEDICAL, INC.; ICB, L.L.C.
To: UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT
Reel/Frame 058592/0759 →
RELEASE OF SECURITY INTEREST Recorded Dec 17, 2021
From: ANTARES CAPITAL LP
To: BETTCHER INDUSTRIES, INC.
Reel/Frame 058558/0299 →
SECURITY INTEREST Recorded Oct 3, 2017
From: BETTCHER INDUSTRIES, INC.
To: ANTARES CAPITAL LP, AS AGENT
Reel/Frame 044103/0664 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 25, 2011
From: WHITED, JEFFREY A., MR.; MASCARI, NICHOLAS A., MR.
To: BETTCHER INDUSTRIES, INC.
Reel/Frame 026642/0856 →
Continuity (1)
Related Publication 20130025136A1 · Jan 31, 2013