Percolator
AssigneeSCM Corporation
InventorsJohn Littell Eaton, Jr., Richard Henry Brill, Walter E. Myers
Life of this patent
Estimating the term…
Abstract
An electric percolator having a liquid containing section formed from an assembly of glass and other materials fixed together by means of a locking collar. The lid of the percolator is held in place by means of a quick-release latching mechanism which prevents the lid from being disengaged by the lifting motion normally used to open a lid and instead requires a twisting motion which rapidly releases the lid. Simplified electrical circuitry in the percolator utilizes a single lamp that indicates both the "Brewing" and the "Keep Warm" modes of percolator operation. A method is also set forth for assembling a composite apparatus having a glass component which does not require threading, strapping or gluing of the glass component.
Claims12
A composite article comprising:
- a first component having an opening therein;
- a portion of said first component having a narrow cross section, smaller than the size of said opening;
- a tightening collar having a fixed outer diameter;
- expanding and contracting means on said tightening collar to vary the size of the inside diameter of said collar;
- engaging means on said collar;
- a second component having engaging means adapted to engage said engaging means of said tightening collar;
- and
- said engaging means of said tightening collar and said second component coacting with said expanding and contracting means on said tightening collar to contract the inside diameter of said tightening collar to less than the size of said opening in said first component.
A unitary tightening collar structure adapted to join two components, comprising:
- a ring portion having a fixed inside and outside diameter;
- expanding and contracting means adapted to provide an inside diameter for the tightening collar which can be varied from the inside diameter of the ring;
- engaging means on said collar adapted to engage a component with the collar;
- said engaging means on said collar coacting with said expanding and contracting means to cause a decrease in the inside diameter of the collar to less than the inside diameter of the ring.
Dependencies are inferred from the claim text.