KEVIN JACOB PFEIFFER
Pilots at Fountain St, Wichita, KS
License number
Kansas A3887209
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
441 N Fountain St, Wichita, KS 67208
Professional information
Propeller Blade Retention Device
US Patent:
2009022, Sep 3, 2009
Filed:
Feb 28, 2008
Appl. No.:
12/039516
Inventors:
Kevin Pfeiffer - Wichita KS, US
Danny Ball - Oxford KS, US
Danny Ball - Oxford KS, US
International Classification:
F01D 5/30, B23P 15/04
US Classification:
416219 A, 298896
Abstract:
A propeller blade retention system and method of manufacture are disclosed. Because of the design, a truly integral hub is able to house a set of variable pitch blades. Each hub socket establishes a substantially cylindrical interface with its respective blade, making the blade slidably receivable for installation. Each blade is allowed axial rotation, and held inside the socket by a set of angular contact bearings. A snap ring locks the blade against coming back out of the socket. An O-ring is provided in the interface to create a fluid seal. The hub alone accomplishes all of the required load-bearing and weather-seal functions.
Single-Piece Propeller And Method Of Making
US Patent:
2009022, Sep 3, 2009
Filed:
Feb 28, 2008
Appl. No.:
12/039458
Inventors:
Danny Ball - Oxford KS, US
Kevin Pfeiffer - Wichita KS, US
Kevin Pfeiffer - Wichita KS, US
International Classification:
B64C 11/20
US Classification:
416229 R, 298896
Abstract:
A method for making a propeller product is disclosed. The propeller is formed using polyurethane cores adhered to a laminate hub to form a core assembly. An encapsulating structural laminate skin is then formed on the core assembly using a resin-transfer-molding process to create a single-piece composite propeller.
Single-Piece Propeller And Method Of Making
US Patent:
2012027, Nov 8, 2012
Filed:
May 30, 2012
Appl. No.:
13/484007
Inventors:
Danny Ball - Oxford KS, US
Kevin Pfeiffer - Wichita KS, US
Kevin Pfeiffer - Wichita KS, US
International Classification:
B29C 45/02, B29C 65/52
US Classification:
156245, 156297, 156253
Abstract:
A method for making a propeller product is disclosed. The propeller is formed using polyurethane cores adhered to a laminate hub to form a core assembly. An encapsulating structural laminate skin is then formed on the core assembly using a resin-transfer-molding process to create a single-piece composite propeller.