| D313298 |
Spiral chute
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| Patent Drawings: | |
| Inventor: |
Elmas, et al. |
| Date Issued: |
December 25, 1990 |
| Application: |
07/165,896 |
| Filed: |
March 9, 1988 |
| Inventors: |
Elmas; Cetin B. (Swindon, GB)
Tolond; David (Pewsey, GB)
|
| Assignee: |
The Post Office (London, GB) |
| Primary Examiner: |
Chin; Kay H. |
| Assistant Examiner: |
|
| Attorney Or Agent: |
Merchant & Gould |
| U.S. Class: |
D34/28; D34/29 |
| Field Of Search: |
D34/29; D34/28; 193/12; 198/778; 272/56.5R |
| International Class: |
|
| U.S Patent Documents: |
D296489; 803119; 973921; 1256724; 1784272; 1802089; 1928459; 1959736; 3565226; 3755878; 3976176; 4726456 |
| Foreign Patent Documents: |
54248; 1370043; 59-227613 |
| Other References: |
"Conveyors and Related Equipment", A. Spivakovsky and V. Dyachkov, pp. 408-413.. |
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| Abstract: |
|
| Claim: |
The ornamental design for spiral chute, as shown and described. |
| Description: |
FIG. 1 is a front elevational view of a spiral chute showing our new design;
FIG. 2 is a side elevational view thereof; and
FIG. 3 is a top plan view thereof.
A portion of the spiral chute is shown broken away to indicate indeterminate length.
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