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 Title: |
US5076521:
Load platform for telescopic hoist
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Neubauer, Willibald; Seattle, Wales
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| Assignee: |
Genie Industries, Inc., Redmond, WA
other patents from GENIE INDUSTRIES, INC. (220005) (approx. 27)
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| Published / Filed: |
1991-12-31
/ 1990-02-21
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| Application Number: |
US1990000483446
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| IPC Code: |
Advanced:
B66F 11/04;
E04F 21/18;
Core:
more...
IPC-7:
F16M 11/16;
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| U.S. Class: |
Current:
248/188;
091/168;
248/219.2;
Original:
248/188;
248/219.2;
091/168;
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| Field of Search: |
248/219.2,188,188.5,188.8,357,405,432,161,27.1
091/168,401,422
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| Priority Number: |
| 1990-02-21 |
US1990000483446 |
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| Abstract: |
A telescopic mast has a top mounting assembly which plugs into the top cylinder of the mast and presents an upwardly projecting threaded stud. A platform unit is seated on the mounting assembly and includes a wing nut which is screwed onto the stud and can be turned independently of the rest of the platform unit. The nut is exposed in a recess at the top of the platform unit for access to permit manual turning.
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| Attorney, Agent or Firm: |
Seed and Berry ;
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| Primary / Asst. Examiners: |
Lindsey, Rodney M.; Dino, Suzanne L.
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| Maintenance Status: |
E2 Expired Check current status
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| INPADOC Legal Status: |
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| Family: |
None
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First Claim:
Show all 7 claims |
I claim:
1. A platform assembly for a hoist of the type having a telescopic mast with a threaded stud projecting upwardly therefrom, said assembly comprising:
- a nut with an enlarged head adapted to be screwed onto a said stud;
- a platform unit turnably mounted on said nut; and
- retaining means on the nut spaced below said head, said retaining means and head preventing the nut from separating from said platform unit and permitting the nut and the platform unit to be turned relative to one another.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 2 U.S. patent(s) that reference this one
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