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H&L Tooth Company Patents
Assignee:
H&L Tooth Company
Address:
Tulsa, OK
No. of patents:
30
Patents:




Patent Number Title Of Patent Date Issued
D576644 Lip shroud September 9, 2008
D567827 Lip shroud April 29, 2008
D567826 Lower corner lip shroud April 29, 2008
D567825 Upper corner lip shroud April 29, 2008
D560691 Winged ground engaging tooth January 29, 2008
D542811 Compactor foot pad cap May 15, 2007
D527029 Ground engaging tooth August 22, 2006
D522819 Pin tool June 13, 2006
D513576 Pin tool January 17, 2006
D499749 Ground engaging tooth December 14, 2004
D486836 Ground engaging tooth February 17, 2004
D447154 Digging tooth August 28, 2001
D446224 Digging tooth August 7, 2001
D417877 Digging tooth December 21, 1999
D414193 Digging tooth September 21, 1999
D410657 Grooved earth working tool June 8, 1999
D399852 Ribbed wear plate for a ripper plow October 20, 1998
D399511 Digging tooth October 13, 1998
D397697 Multi-tined digging tooth September 1, 1998
D381484 Lip shroud July 22, 1997
D378006 Corner lip shroud February 11, 1997
7313877 Pin assembly for a two-part ground engaging tooth system and method for connecting components of January 1, 2008
A pin assembly for releasably maintaining an adapter and replaceable part or tool of a two-part digging system in operable combination relative to each other. The pin assembly includes a pair of axially aligned retaining pins whose opposed ends are arranged in operable combination relati
7114272 Winged digging tooth October 3, 2006
A digging tooth adapted to extend forward from a leading edge of a bucket or the like. The digging tooth has a forward end, with an edge extending thereacross, and a rear end. The digging tooth further includes wing structure preferably formed integral with the digging tooth and extendin
6247255 Multipiece excavating tooth assembly June 19, 2001
A multipiece excavating tooth assembly including an adapter, a digging or excavating tooth, and retaining pin structure for interconnecting the adapter and tooth in operable combination relative to each other. The tooth and adapter have a uniquely configured interface or conjuncture
5782019 High strength earth working tooth July 21, 1998
An earth working tooth having a proximal end for attachment to an earth working machine and a distal end defining a forward cutting edge for penetrating the ground. The tooth has top and bottom surfaces having similarly curved configurations diverging angularly away from each other a
5765301 Retention apparatus for a ground engaging tool June 16, 1998
A retainer pin assembly for releasably securing a ground engaging tool in position relative to an implement such as an excavator bucket, shovel and the like. The ground engaging tool is configured to fit about an apertured portion of the implement. Those portions of the tool fitting abou
5617655 Securement pin for earth excavation teeth April 8, 1997
A pin assembly for securing large earth excavation teeth on the nose portions of their mounting adaptors attached to the shovel for excavating bucket of the excavating equipment. The pin assembly is comprised of an elongated steel bearing pin and a compressible flexpin adapted for mating
5350022 Attachment assembly for wear caps ripper teeth September 27, 1994
An attachment assembly for securing ripper teeth to an earth excavation device which comprises a substantially "J"-shaped ripper shank defining a lower forwardly projecting tapered end portion for carrying the tooth, an upper end portion for attachment to the excavation device and a fron
5283965 Attachment assembly for excavation teeth February 8, 1994
An attachment assembly for securing excavation teeth to the loading or dipper bucket on large excavation equipment. The assembly includes a bucket lip adapted to be secured to a loading or dipper bucket, and a plurality of shanks adapted to be secured to the lip and carry the excavat
5075986 Attachment assembly for excavation teeth December 31, 1991
An attachment assembly for securing large excavation teeth on large earth excavation equipment including an excavation tooth, an adaptor having a tapered nose piece at one end thereof for carrying the tooth and defining means rearwardly of the nose piece for securing the adaptor to the

 
 
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