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Hollnagel; Harold E.
Milwaukee, WI
No. of patents:

Patent Number Title Of Patent Date Issued
5988706 Tube for connect to female socket November 23, 1999
A tube (34) for disposition in a socket member (12) is characterized by having an end disposed in a socket member (12) and presenting a radially extending projection (38) and presenting an enlarged end (40) extending radially outwardly with the projection (38) from the remainder of the t
5803512 Tube quick connect to female socket September 8, 1998
A quick connect member for coupling a tube 34 to a socket member 12 is characterized by arms extending axially from a support portion 44 through a flared length 54 slanting radially outwardly and axially rearwardly immediately from the radial plane at the forward extremity to an abutment
5718463 Tube quick connect to female socket February 17, 1998
A quick connect member (36, 136, 236) for connecting a tube (12) in a female socket having a radially extending shoulder in a groove (28). The quick disconnect member (36, 136, 236) comprises an annular support portion (40, 140, 240) for retained on the tube (12) to slide therealong
5383397 Oil filter crushing apparatus January 24, 1995
An oil filter crushing apparatus includes a frame on which is mounted a filter platform configured to receive a used oil filter for crushing. An air spring actuating device is secured within the frame, and a ram is secured to a lower end of the air spring. A control valve regulates the
5337656 Oil filter crushing apparatus having air bag actuator August 16, 1994
An oil filter crushing apparatus has a crushing frame (12, 312) mounting a filter platform (16, 316) on which a used oil filter is supported on end for crushing by a ram device (40, 336) having a single ram rod (52, 338). An air spring actuating device (42, 344) is mounted on the frame (

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