MASSAGE APPLICATOR HEAD ASSEMBLY
A head assembly for a therapeutic massage device includes a battery mounted to a head portion of the head assembly and not installed within the stem portion of the head assembly. The head portion may include a heating element, and the stem portion may include features that allow a tight coupling between the head assembly and a main body of the therapeutic massage device.
1 . A head assembly for a therapeutic device, the head assembly comprising:
a stem portion, devoid of a battery pack; and
a head portion comprising a flat-profile mounted battery pack.
2 . The head assembly of claim 1 , wherein the stem portion is solid.
3 . The head assembly of claim 1 , wherein the flat-profile mounted battery pack comprises a lithium-polymer battery.
4 . The head assembly of claim 1 , wherein the flat-profile mounted battery pack has a rectangular top surface.
5 . The head assembly of claim 1 , wherein the head portion further comprises:
a top foam layer and a bottom foam layer, wherein the flat-profile mounted battery pack is disposed between the top and bottom foam layers.
6 . The head assembly of claim 1 , wherein the head portion further comprises:
a cover having inner and outer surfaces; and
a heating element: (i) electrically coupled to the flat-profile mounted battery pack, and (ii) defining a bounding box, wherein an area of the bounding box is smaller than an area of the inner surface of the cover.
7 . The head assembly of claim 6 , wherein the head portion further comprises:
a circuit board that is electrically coupled to the heating element and the flat-profile mounted battery pack, for controlling heating of the heating element.
8 . The head assembly of claim 7 , wherein the head portion further comprises:
a clamp for holding together the flat-profile mounted battery pack and the circuit board.
9 . The head assembly of claim 8 , wherein the head portion further comprises:
a cover foam layer disposed between the heating element and the clamp.
10 . The head assembly of claim 1 , wherein the stem portion comprises:
a first tapering friction ring having a top side facing the head portion and an opposing bottom side, wherein a first maximum diameter of the first tapering friction ring at the top side thereof is greater than the first smallest diameter of the first tapering friction ring at the bottom side thereof,
wherein a diameter of an inner section of the stem portion is smaller than an inner diameter of a receiver portion of the therapeutic device, wherein the receiver portion is configured to removably receive the stem portion, and
wherein the first maximum diameter is greater than the inner diameter of the receiver portion.
11 . The head assembly of claim 10 , wherein the stem portion further comprises:
a second tapering friction ring having a top side facing the head portion and an opposing bottom side, wherein a second maximum diameter of the second tapering friction ring at the top side thereof is greater than a second smallest diameter of the second tapering friction ring at the bottom side thereof.
12 . The head assembly of claim 11 , wherein:
the second maximum diameter is same as the first maximum diameter; and
the second smallest diameter is same as the first smallest diameter.
13 . The head assembly of claim 11 , wherein:
the second maximum diameter is smaller than the first maximum diameter.
14 . The head assembly of claim 11 , wherein:
a thickness of the second tapering friction ring is same as a thickness of the first tapering friction ring.
15 . The head assembly of claim 10 , wherein the stem portion further comprises:
a fitting ring adapted to match a groove in the receiver portion of the therapeutic device.
16 . A head assembly for a therapeutic device, the head assembly comprising:
a head portion comprising a battery pack; and
a stem, devoid of any battery pack, adapted to mate and lock with, via a locking mechanism, a coupler for coupling the head assembly to a body of the therapeutic device.
17 . The head assembly of claim 16 , wherein the stem is solid.
18 . The head assembly of claim 16 , wherein the locking mechanism comprises a tab, or a threading, or a ring, or a magnet.
19 . The head assembly of claim 16 , further comprising:
the coupler, wherein the coupler is adapted to fit within a piston of the therapeutic device.
20 . The head assembly of claim 16 , wherein the battery pack comprises a lithium-polymer battery.
21 . The head assembly of claim 16 , wherein:
the head assembly has an axis of reciprocating movement; and
the battery pack has an elongated profile along a first battery axis aligned with the axis of reciprocating movement and a flat profile along a second battery axis normal to the axis of reciprocating movement.
22 . The head assembly of claim 16 , wherein:
the head assembly has an axis of reciprocating movement; and
the battery pack has a flat profile along a first battery axis aligned with the axis of reciprocating movement.
23 . The head assembly of claim 16 , wherein the head portion further comprises:
a cover having inner and outer surfaces; and
a heating element: (i) electrically coupled to the battery pack, and (ii) disposed between the inner surface of the cover and the battery pack.
24 . The head assembly of claim 23 , wherein the heating element defines a bounding box, wherein an area of the bounding box is smaller than an area of the inner surface of the cover.
25 . The head assembly of claim 23 , wherein the head portion further comprises:
a circuit board that is electrically coupled to the heating element and the battery pack, for controlling heating of the heating element.
26 . A massage applicator head for a therapeutic device, the massage applicator head lacking a stem, and comprising:
a battery pack; and
a bore adapted to receive a head-engagement part of a stem attached to a body of the therapeutic device, the bore comprising a mating locking mechanism corresponding to a principal locking mechanism of the head-engagement part.
27 . The massage applicator head of claim 26 , wherein:
the principal locking mechanism comprises a tab, or a threading, or a ring, or a magnet; and
the mating locking mechanism comprises a notch, a groove, or a magnet.
28 . The massage applicator head of claim 26 , wherein the battery pack comprises a lithium-polymer battery.
29 . The massage applicator head of claim 26 , wherein:
the massage applicator head has an axis of reciprocating movement; and
the battery pack has an elongated profile along a first battery axis aligned with the axis of reciprocating movement and a flat profile along a second battery axis normal to the axis of reciprocating movement.
30 . The massage applicator head of claim 26 , wherein:
the massage applicator head has an axis of reciprocating movement; and
the battery pack has a flat profile along a first battery axis aligned with the axis of reciprocating movement.
31 . The massage applicator head of claim 26 , further comprising:
a cover having inner and outer surfaces; and
a heating element: (i) electrically coupled to the battery pack, and (ii) disposed between the inner surface of the cover and the battery pack.
32 . The massage applicator head of claim 31 , wherein the heating element defines a bounding box, wherein an area of the bounding box is smaller than an area of the inner surface of the cover.
33 . The massage applicator head of claim 31 , further comprising:
a circuit board that is electrically coupled to the heating element and the battery pack, for controlling heating of the heating element.