U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Celebrity Inventors

Actress Jamie Lee Curtis is a patented inventor - she created a diaper equipped with a premoistened baby wipe. And that's no act!

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 277/521 - Segmented


Subclass of Class 277 - Seal for a joint or juncture
Definition: Particular gland feature wherein the gland is divided into
No. of patents: 5
Last issue date: 09/06/2005


NumberTitleIssue Date
6938961Apparatus for breaking up solid objects
An improved buster point assembly is disclosed. The improved buster point assembly has an elongated shaft attached to a replaceable tip. The replaceable tip includes a working end and a connecting end, the connecting end has a chamber for receiving a distal end of t...
09/06/2005
5772218Uniform compression gland seal assembly
A gland seal assembly for a slurry pump comprising a main body having a bore therethrough for receiving a rotatable shaft, a packing receiving zone within the bore, the packing including at least two packing rings and a packing sleeve surrounding the pack...
06/30/1998
5727793Packing box for fluid displacement device
A packing box (10) is provided for housing a packing seal (48) between a rotating shaft (32) and the casing (18) of a pump. The packing box (10) comprises walls defining an enclosed chamber for accommodating the packing. An annular plate (36) is provided ...
03/17/1998
4623152Shaft seal arrangement with split housing
An improvement for a stuffing box for sealing a shaft, such as a valve stem, in a first housing, such as a valve body, where the shaft extends through the housing and original seal devices are provided in an annular chamber or packing gland between the ho...
11/18/1986
4270760Sealing assembly
An assembly for sealing clearance space around a shaft between the shaft and a surrounding member comprising a housing mounted adjacent the clearance space in fixed position relative to the shaft, the latter extending through the housing. A relatively rig...
06/02/1981
 
Sign InRegister
Username  
Password   
forgot password?