Porcelain knob construction

Details Porcelain knob construction Porcelain knob construction

1997-10-02

2001-05-15

Luu, Teri Pham (Department: 3627)

Closure fasteners

Knobs

C292S348000

Reexamination Certificate

active

06231092

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to knobs and, in particular, to porcelain knobs for use with either cupboards or doors.
BACKGROUND OF THE INVENTION
Porcelain knobs have long found favour because of their appearance and find use either as fixed knobs for cupboards or as rotating knobs for doors. The porcelain knob itself has a bulbous body which is shaped to be conveniently grasped and a shaft protrudes from the body. The shaft is hollow having a blind hole formed in its free end and a metal mounting member is secured by adhesive to the shaft. The adhesive has substantially filled the shaft hitherto.
Such a conventional knob construction suffers from the disadvantage that in the event that there is an excessive load applied to the knob, the knob is liable to fracture in the region where the knob shaft joins the bulbous body. This is undesirable for various reasons, including that in the customer's mind, a precise component should not fail and that the end result is very unsightly.
It is the object of the present invention to provide an improved porcelain knob construction in which the mechanism of failure, if any, is improved.
DISCLOSURE OF THE INVENTION
In accordance with the present invention there is disclosed a porcelain knob construction comprising a metal mounting member which is adhered to a porcelain knob comprising a body with a shaft protruding therefrom, said shaft being hollow and having a blind hole formed in the free end thereof, wherein said mounting member includes an annular recess to receive said free end of said shaft and wherein said mounting member and shaft are adhered only adjacent said shaft free end whereby the interior of said blind hole is substantially free of adhesive.


REFERENCES:
patent: 192759 (1877-07-01), Haines
patent: 231903 (1880-09-01), Dougherty
patent: 818565 (1906-04-01), Schwarz
patent: 993298 (1911-05-01), Henry
patent: 1186234 (1916-06-01), Sanderson
patent: 1687531 (1928-10-01), Verse
patent: 1798409 (1931-03-01), Ferris
patent: 1919455 (1933-07-01), Wilson
patent: 2061811 (1936-11-01), Sinko
patent: 3024555 (1962-03-01), Abeles
patent: 5190327 (1993-03-01), Lin
patent: 5688005 (1997-11-01), Ellis
patent: 5749612 (1998-05-01), Meck et al.
patent: 406014 (1934-02-01), None
patent: 2203641 (1988-10-01), None

Affiliated with

Also associated with

Rating

Porcelain knob construction does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Porcelain knob construction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Porcelain knob construction will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2485584