US 4,241,442 A · Timepiece with shaped components

Abstract

A novel construction is provided for a timepiece of the type having a shaped (or non-circular) case and crystal in conjunction with a circular caseback. The construction typically includes a shaped case having a shaped recess in one side and a circular aperture in the other side with a central cylindrical bore therebetween. The bottom of the shaped recess is formed by the intersection of the recess and cylindrical bore and is in the form of an annular shoulder having a non-circular outer periphery and a circular inner periphery providing a central opening in the recess bottom. Supported in the cylindrical bore and visible through the central opening in the bottom of the recess is a circular dial plate. A decorative annular mask having a shaped outer periphery corresponding to that of the recess and circular inner periphery of such size to provide a circular window for viewing the dial plate overlies the annular shoulder of the recess bottom to hide the annular shoulder from view and provide a decorative border around the circular dial plate when viewed through a transparent crystal shaped to fit in the non-circular recess. The decorative mask typically is positioned between the crystal and annular shoulder and may be an independent preformed annular member or a coating applied to the crystal or shoulder. A circular caseback is usable with this novel construction to close off the aperture on the other side of the case. A water-resistant timepiece can be readily provided by placing a resilient O-ring between the circular caseback and case and sealant such as epoxy between the crystal and case.

Claims11

Dependent claims

In a timepiece with a minute hand and an hour hand, the combination of:

(a) a case having a non-circular recess in one side intersecting with a cylindrical bore extending into said case, said bore including a first bore section adjacent to and intersecting said non-circular recess to form a first annular shoulder in said case at the bottom of the recess with said first shoulder having a non-circular outer periphery and a circular inner periphery defining a circular opening in the bottom of the recess and further including a second bore section of larger diameter below and intersecting said first bore section to form a second annular shoulder of circular outer and inner periphery recessed in said case below and hidden from view by said first shoulder;
(b) a transparent crystal with a non-circular outer periphery adapted to fit in said non-circular recess to close off said recess, said crystal having a bottom surface facing the bottom of said recess;
(c) a decorative annular mask attached to the bottom surface of said crystal and overlying the first annular shoulder to hide it from view, said mask having a non-circular outer periphery corresponding to that of said recess and having a circular inner periphery of such size to provide a circular window for viewing into the circular opening in the bottom of said recess and into said bore;
and
(d) a circular dial plate supported in the second bore section, said dial plate including a central, circular surface visible through the circular window in the mask for indicating time in cooperation with said hands and an up-turned, circumferential lip which abuts against the second annular shoulder in said case to position and space the central dial surface a preselected distance below the masked crystal.

2 more elements

A timepiece comprising:

(a) a case having a non-circular recess in one side and a circular aperture in the other side with a cylindrical bore connecting the recess and aperture together, said bore comprising a first bore section adjacent to and intersecting said non-circular recess to form a first annular shoulder in said case at the bottom of the recess with said first shoulder having a non-circular outer periphery and a circular inner periphery defining a circular opening in the bottom of the recess and further comprising a second bore section of larger diameter adjacent to said circular aperture and intersecting said circular aperture at one end and said first bore section at the other end to form a second annular shoulder of circular outer and inner periphery recessed in said case below and hidden from view by said first shoulder;
(b) a transparent crystal with a non-circular outer periphery adapted to fit in said non-circular recess so that the crystal closes off said recess, said crystal having a bottom surface facing the bottom of said recess;
(c) a decorative annular mask comprising a coating on the bottom surface of said crystal and overlying the first annular shoulder to hide it from view, said mask having a non-circular outer periphery corresponding to that of said recess and having a circular inner periphery of such size to provide a circular window for viewing into the circular opening in the bottom of said recess and into said bore;
(d) a movement positioned in the second bore section between said non-circular recess and circular aperture;
and
(e) a circular dial plate supported in the second bore section on the side of the movement facing the non-circular recess, said dial plate including a central, circular surface with time indicia thereon visible through the circular window in the mask and an upturned, circumferential lip which abuts against the second annular shoulder in said case to position and space the central dial surface a preselected distance below the masked crystal.

3 more elements

A water-resistant timepiece comprising:

(a) a case of non-circular exterior shape, said case having a non-circular recess in one side and a circular aperture in the other side with a cylindrical bore connecting the recess and aperture together, said bore including a first bore section adjacent to and intersecting said non-circular recess to form a first annular shoulder in said case at the bottom of the recess with said first shoulder having a non-circular outer periphery and a circular inner periphery and defining a circular opening in the bottom of the recess and further including a second bore section of larger diameter adjacent to said circular aperture and intersecting said circular aperture at one end and said first bore section at the other end to form a second annular shoulder of circular outer and inner periphery recessed in said case below and hidden from view by said first shoulder;
(b) a substantially flat, transparent crystal having a non-circular outer periphery adapted to fit in said non-circular recess so that the crystal closes off said recess, said crystal having a bottom surface facing the bottom of said recess;
(c) epoxy sealant means disposed between the outer periphery of the crystal and the case to minimize entry of moisture into the case;
(d) a decorative annular mask comprising a coating on the bottom surface of said crystal overlying the first annular shoulder to hide it from view, said mask having a non-circular outer periphery corresponding to that of said recess and having a circular inner periphery of such size to provide a circular window for viewing into the circular opening in the bottom of said recess and into said bore;
(e) a movement positioned in the second bore section between said non-circular recess and circular aperture;
(f) a circular dial plate supported in the second bore section on the side of the movement facing the non-circular recess, said plate including a central, circular surface with time indicia thereon visible through the circular window in the mask and an upturned, circumferential lip which abuts against the second annular shoulder in said case to position and space the central dial surface a preselected distance below the masked crystal;
(g) a circular caseback releasably engaged to said other side of the case to close off the circular aperture;
and
(h) a resilient O-ring positioned between the caseback and case to minimize entry of moisture into the case.

6 more elements

Dependencies are inferred from the claim text.

Timepiece with shaped components

Life of this patent

Timepiece with shaped components

Life of this patent

Abstract

Claims11