Section of a shaftless spiral conveyor
Bruke * June 9, 1
U.S. patent number D326,944 [Application Number 07/418,454] was granted by the patent office on 1992-06-09 for section of a shaftless spiral conveyor. This patent grant is currently assigned to Spirac Engineering AB. Invention is credited to Richard L. Bruke.
| United States Patent | D326,944 |
| Bruke | * June 9, 1992 |
Section of a shaftless spiral conveyor
Claims
The new design for a section of a shaftless spiral conveyor, as shown and described.
| Inventors: | Bruke; Richard L. (Bunkeflostrand, SE) |
|---|---|
| Assignee: | Spirac Engineering AB (Malmo,
SE) |
| [*] Notice: | The portion of the term of this patent subsequent to January 21, 2006 has been disclaimed. |
| Appl. No.: | 07/418,454 |
| Filed: | October 10, 1989 |
Foreign Application Priority Data
| Sep 1, 1989 [SE] | 89-1968 | |||
| Current U.S. Class: | D34/29 |
| Field of Search: | ;D34/28,29 ;198/778 ;193/12 |
References Cited [Referenced By]
U.S. Patent Documents
| D292938 | November 1987 | Tarlton et al. |
| D296489 | June 1988 | Nair |
| 705365 | July 1902 | Law |
| 961340 | June 1910 | Cormack |
| 973921 | October 1910 | Dodge |
| 3565226 | February 1971 | Winchester |
| 3976176 | August 1976 | Kurtz et al. |
| 4269302 | May 1981 | Garvey |
| 294187 | Apr 1965 | NL | |||
Assistant Examiner: Baynham; H.
Attorney, Agent or Firm: Ladas & Parry
Description
The sole FIGURE is a perspective view of a section of a shaftless spiral conveyor showing my new design, it being understood that the conveyor is of indeterminate length.
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