Brookston Beer Bulletin

Jay R. Brooks on Beer

  • Home
  • About
  • Editorial
  • Birthdays
  • Art & Beer

Socialize

  • Dribbble
  • Email
  • Facebook
  • Flickr
  • GitHub
  • Instagram
  • LinkedIn
  • Pinterest
  • RSS
  • Twitter
  • YouTube

Powered by Genesis

You are here: Home / Beers / Patent No. 3550818A: Keg Tapping Device

Patent No. 3550818A: Keg Tapping Device

December 29, 2015 By Jay Brooks

patent-logo
Today in 1970, US Patent 3550818 A was issued, an invention of Mack S. Johnston, for his “Keg Tapping Device.” Here’s the Abstract:

Disclosed is a keg adapter having a siphon body receivable through the opening of a keg and a retainer nut within the keg. The siphon body has liquid and gas passages extending longitudinally of the keg adapter terminating at their upper ends in a pair of bores disposed eccentrically of the axis of the opening. The gas passage terminates intermediate the ends of the siphon body in a lateral opening. The retainer nut has a central opening for receiving the lower portion of the siphon body and an annular recess for communication with the lateral siphon body opening, the recess communicating through a bore in the nut into the keg. A coupler unit having a pair of depending probes is engageable with the keg adapter with the probes being receivable in the bore holes in the siphon body. A liquid valve is disposed in the liquid passage and the lower end of the liquid probe engages an axially moveable member engageable with the valve to open the latter, permitting egress of liquid from the keg through the keg adapter and coupler unit. A flexible envelope having a slit is provided on the lower end of the retainer nut in communication with the bore therethrough to permit ingress of gas through the coupler unit and keg adapter into the keg. The body of the keg adapter is hexagonal as to be receivable within the head of a wrench.

US3550818-1

Filed Under: Beers, Just For Fun, Politics & Law, Related Pleasures Tagged With: History, Kegs, Law, Patent



Find Something

Northern California Breweries

Please consider purchasing my latest book, California Breweries North, available from Amazon, or ask for it at your local bookstore.

Recent Comments

  • The Session #147: Downing pints when the world's about to end - Daft Eejit Brewing on The Sessions
  • Amanda Alderete on Beer Birthday: Jack McAuliffe
  • Aspies Forum on Beer In Ads #4932: Eichler’s Bock Beer Since Civil War Days
  • Return of the Session – Beer Search Party on The Sessions
  • John Harris on Beer Birthday: Fal Allen

Recent Posts

  • Beer In Ads #5003: Old Reading Bock Beer June 19, 2025
  • Beer Birthday: Carla Jean Lauter June 19, 2025
  • Historic Beer Birthday: Alan Cranston June 19, 2025
  • Historic Beer Birthday: Angelo Poretti June 19, 2025
  • Historic Beer Birthday: John Gardiner Jr. June 19, 2025

BBB Archives

Feedback

Head Quarter
This site is hosted and maintained by H25Q.dev. Any questions or comments for the webmaster can be directed here.
Go to mobile version