Ballast apparatus and crane, in particular crawler-mounted crane
US-10124994-B2 · Nov 13, 2018 · US
Counterweight block and assemblies for cranes
US8960460B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8960460-B2 |
| Application number | US-71815610-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 5, 2010 |
| Priority date | Mar 9, 2009 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A counterweight block apparatus includes a pair of interconnecting counterweight blocks having top and bottom surfaces, the counterweight blocks forming a plane of interconnection along adjacent sides thereof; and a shear bar releasably secured between the adjacent sides of the interconnecting counterweight blocks, generally perpendicular to the plane of interconnection, to provide resistance to relative vertical movement of the interconnecting counterweight blocks along the plane of interconnection. In another aspect, each counterweight block includes in at least one side thereof an indentation from a top of the counterweight block to a depth more shallow than the thickness of the counterweight block, the indentation defining a lip for hand grabbing. An aperture may be formed through the rest of the thickness of the counterweigh block at each indentation, wherein a securing strap can be run through each aperture of a stacked plurality of counterweight blocks to secure them to each other.
First claim
Opening claim text (preview).
The invention claimed is: 1. A counterweight block apparatus comprising: a) a pair of interconnecting counterweight blocks, each counterweight block having a top and a bottom surface, a first side, two opposing second sides located externally to the counterweight blocks, a lifting lug on one of the second sides and another lifting lug on the other of the second sides, the counterweight blocks being interlocking directly to each other along adjacent first sides thereof, and the fir…
Assignees
Inventors
Classifications
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8960460B2 cover?
- A counterweight block apparatus includes a pair of interconnecting counterweight blocks having top and bottom surfaces, the counterweight blocks forming a plane of interconnection along adjacent sides thereof; and a shear bar releasably secured between the adjacent sides of the interconnecting counterweight blocks, generally perpendicular to the plane of interconnection, to provide resistance t…
- Who is the assignee on this patent?
- Mentink Trevor D, O'Neil William J, Manitowoc Crane Companies Llc
- What technology area does this patent fall under?
- Primary CPC classification B66C23/76. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).