Spiral chute

- The Post Office
Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a front perspective view of a spiral chute showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevation view thereof; and

FIG. 4 is a front elevation view thereof.

The brake lines shown in FIGS. 1, 3 and 4 indicate indeterminate length of the spiral chute.

Referenced Cited
U.S. Patent Documents
803119 October 1905 Logan
973921 October 1910 Dodge
1784272 December 1930 Constable
1959736 May 1934 Rademacher
3565226 February 1971 Winchester
3755878 September 1973 Henning
3976176 August 24, 1976 Kurtz et al.
Foreign Patent Documents
54248 April 1985 CAX
1370043 June 1963 FRX
Patent History
Patent number: D296489
Type: Grant
Filed: Jul 23, 1987
Date of Patent: Jun 28, 1988
Assignee: The Post Office (London)
Inventor: Moolamkuzhiel R. V. Nair (Witham)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Kay H. Chin
Law Firm: Larson & Taylor
Application Number: 7/78,019
Classifications
Current U.S. Class: Conveying, Lifting, Or Transferring Article (D34/28)