The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 1998
Filed:
Jan. 23, 1996
Applicant:
Inventor:
Leslie J Sell, Bothell, WA (US);
Assignee:
Ingersoll-Rand Company, Woodcliff Lake, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F01B / ;
U.S. Cl.
CPC ...
91498 ; 91503 ; 91448 ; 137270 ; 1372705 ; 13762413 ;
Abstract
The combination of a cylindrical rotary distribution valve which is supplied pressure fluid alternately at either end to sequentially supply and exhaust pressure fluid such as compressed air radially to a selectively reversible hoist motor and a directional spool valve disposed in parallel valve body bores and interconnected with the rotary distribution by short direction passageways provide a compact one body valve electing efficient air distribution and exhaust.