US2968911A - Fluidtight watch case - Google Patents

Fluidtight watch case Download PDF

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Publication number
US2968911A
US2968911A US860437A US86043759A US2968911A US 2968911 A US2968911 A US 2968911A US 860437 A US860437 A US 860437A US 86043759 A US86043759 A US 86043759A US 2968911 A US2968911 A US 2968911A
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United States
Prior art keywords
case
fluidtight
annular
watch case
packing
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Expired - Lifetime
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US860437A
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Piquerez Ervin
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Individual
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Priority claimed from US544332A external-priority patent/US2959911A/en
Application filed by Individual filed Critical Individual
Priority to US860437A priority Critical patent/US2968911A/en
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • G04B37/11—Hermetic sealing of openings, joints, passages or slits of the back cover of pocket or wrist watches

Definitions

  • annular elastic means compressed between the bottom section of the case and the case band, said bottom section including an annular upstanding member provided with an outer flange urged upwardly by the elastic means under the action of said elastic means which are subjected to the upwardly directed compression exerted by a ring threadedly engaging the inside of the case band.
  • Figure l is a partial diametrical cross section embodying my invention.
  • Figure 2 illustrates in detail the elastic means in a partly sectional elevational view.
  • the body 20 of the watch case is provided with an annular groove 1 housing a packing 22 held in position by the outer flange 23 on the case bottom 24.
  • Said bottom is provided with an upstanding cylindrical wall 25 to which is outwardly secured a collar-shaped stop 26 which serves for urging axially a corrugated annular spring 14 against a second stop 27 constituted by the inner flange of an assembling ring 28.
  • the latter is screwed inside a tapped section 30 of the case body 20.
  • the ring 28 turns in unison with the bottom 24 of the case as provided by the pins 31, only one of which is illustrated; however, the connection between the bottom 24 and the assembling ring i atented Jan.
  • corrugated annular spring 14 it is possible to substitute for the corrugated annular spring 14 other elastic means held under compressed conditions between an annular axial stop formed either on the case body or on the case bottom or even on another part of the case.
  • the packing is not essential since the desired fluidtightness between the bottom and the case body may be obtained through direct contact between said parts without any packing therebetween.
  • a fluidtight watch case the combination of two case components, a bottom section and a case band, an annular packing fitted between the peripheral portion of the upper surface of the bottom section and the lower periphery of the case band, an annular member rigid with and extending over the bottom section on the inside of the case band and having an annular surface facing the upper surface of said bottom section, a ring coaxial with the case and threadedly engaging the inner surface of the case band and including an inturned annular flange, the upper surface of which faces the above-mentioned annular surface in the annular member and annular elastic means fitted between the two last-mentioned cooperating annular surfaces and urging the member rigid with the bottom section and therewith the latter upwardly into fluidtight engagement with the case band with the interposition of the packing.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)

Description

Jan. 24, 1961 E. PIQUEREZ FLUIDTIGHT WATCH CASE Original Fild Nov. 1, 1955 iil A rrz United States Patent FLUIDTIGHT WATCH CASE Ervin Piquerez, Bassecourt, Jura Bernois, Switzerland Original application Nov. 1, 1955, Ser. No. 544,332. Divided and this application Dec. 18, 1959, Ser. No. 860,437
Claims priority, application Switzerland Nov. 22, 1954 1 Claim. (Cl. 5890) My present application is a dvision of my copending specification Ser. No. 544,332, filed on November 1, 1955. According to my invention, there are provided annular elastic means compressed between the bottom section of the case and the case band, said bottom section including an annular upstanding member provided with an outer flange urged upwardly by the elastic means under the action of said elastic means which are subjected to the upwardly directed compression exerted by a ring threadedly engaging the inside of the case band.
In the drawings:
Figure l is a partial diametrical cross section embodying my invention.
Figure 2 illustrates in detail the elastic means in a partly sectional elevational view.
In the accompanying drawing, the body 20 of the watch case is provided with an annular groove 1 housing a packing 22 held in position by the outer flange 23 on the case bottom 24. Said bottom is provided with an upstanding cylindrical wall 25 to which is outwardly secured a collar-shaped stop 26 which serves for urging axially a corrugated annular spring 14 against a second stop 27 constituted by the inner flange of an assembling ring 28. The latter is screwed inside a tapped section 30 of the case body 20. The ring 28 turns in unison with the bottom 24 of the case as provided by the pins 31, only one of which is illustrated; however, the connection between the bottom 24 and the assembling ring i atented Jan. 24, 1961 28 provides a slight axial clearance between said parts by reason of the fact that the pins 31 are slidingly fitted in blind openings 32, the depth of which is suflicient to allow such an axial clearance. As a consequence of this arrangement, the corrugated annular spring urges the bottom 24 upwardly in the direction of the arrow F by acting on the collar-shaped stop 26 which leads to making the flange 23 exert a pressure on the packing 22. By reason of the presence of equidistant corrugations on the spring 14, said pressure is uniform and constant.
It is possible to substitute for the corrugated annular spring 14 other elastic means held under compressed conditions between an annular axial stop formed either on the case body or on the case bottom or even on another part of the case.
Obviously, the packing is not essential since the desired fluidtightness between the bottom and the case body may be obtained through direct contact between said parts without any packing therebetween.
What I claim is:
In a fluidtight watch case, the combination of two case components, a bottom section and a case band, an annular packing fitted between the peripheral portion of the upper surface of the bottom section and the lower periphery of the case band, an annular member rigid with and extending over the bottom section on the inside of the case band and having an annular surface facing the upper surface of said bottom section, a ring coaxial with the case and threadedly engaging the inner surface of the case band and including an inturned annular flange, the upper surface of which faces the above-mentioned annular surface in the annular member and annular elastic means fitted between the two last-mentioned cooperating annular surfaces and urging the member rigid with the bottom section and therewith the latter upwardly into fluidtight engagement with the case band with the interposition of the packing.
References Cited in the tile of this patent FOREIGN PATENTS 912,538 France Apr. 29, 1946 297,482 Switzerland June 1, 1954
US860437A 1955-11-01 1959-12-18 Fluidtight watch case Expired - Lifetime US2968911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US860437A US2968911A (en) 1955-11-01 1959-12-18 Fluidtight watch case

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US544332A US2959911A (en) 1954-11-22 1955-11-01 Fluidtight watch case
US860437A US2968911A (en) 1955-11-01 1959-12-18 Fluidtight watch case

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US2968911A true US2968911A (en) 1961-01-24

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US860437A Expired - Lifetime US2968911A (en) 1955-11-01 1959-12-18 Fluidtight watch case

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4831607A (en) * 1986-11-04 1989-05-16 Eta Sa Fabriques D'ebauches Watch case with glass-to-metal seal

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR912538A (en) * 1944-11-16 1946-08-12 Waterproof watch box
CH297482A (en) * 1952-02-09 1954-03-31 Piquerez Erwin Waterproof watch.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR912538A (en) * 1944-11-16 1946-08-12 Waterproof watch box
CH297482A (en) * 1952-02-09 1954-03-31 Piquerez Erwin Waterproof watch.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4831607A (en) * 1986-11-04 1989-05-16 Eta Sa Fabriques D'ebauches Watch case with glass-to-metal seal

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