Single sheave lifting block
Latest Mannesmann Demag AG Patents:
- Method and apparatus for thermal longitudinal parting of rectangular metal plate bars, in particular of cut-to-length continuous-casting plate slabs
- Method and apparatus for recovery and recycling of heat from hot gases
- Apparatus for thermal longitudinal parting of rectangular metal plate bars, in particular of cut-to-length continuous-casting plate slabs
- Method for recovery and recycling of heat from hot gases in metallurigical processing
- Double sheave lifting block
Description
FIG. 1 is a front perspective view of a single sheave lifting block showing my new design;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a right side elevational view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
Other references
663905 | December 1900 | Knight |
3446484 | May 1969 | Walsh et al. |
3917334 | November 1975 | Koster |
3992919 | November 23, 1976 | Jarman |
842664 | October 1957 | GBX |
- The Grosby Group Brochure, p. 71, Model BC-45, 45 Ton Bridge Crane Block.
Patent History
Patent number: D300076
Type: Grant
Filed: Sep 16, 1985
Date of Patent: Feb 28, 1989
Assignee: Mannesmann Demag AG (Duisburg)
Inventors: Uwe Lichtenvort (Essen), Manfred Stoeber (Witten)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Kay H. Chin
Attorney: Ralf H. Siegemund
Application Number: 6/776,569
Type: Grant
Filed: Sep 16, 1985
Date of Patent: Feb 28, 1989
Assignee: Mannesmann Demag AG (Duisburg)
Inventors: Uwe Lichtenvort (Essen), Manfred Stoeber (Witten)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Kay H. Chin
Attorney: Ralf H. Siegemund
Application Number: 6/776,569
Classifications
Current U.S. Class:
Element Or Attachment (D34/35)