US 11,938,082 B1
Massage device having variable stroke length
Philip C. Danby, Key Biscayne, FL (US); and John Charles Danby, Witham (GB)
Assigned to HYPERICE IP SUBCO, LLC, Irvine, CA (US)
Filed by HYPERICE IP SUBCO, LLC, Irvine, CA (US)
Filed on Nov. 20, 2023, as Appl. No. 18/515,112.
Application 18/515,112 is a continuation of application No. 18/466,702, filed on Sep. 13, 2023.
Application 18/466,702 is a continuation of application No. 17/681,367, filed on Feb. 25, 2022, granted, now 11,857,482.
Application 17/681,367 is a continuation of application No. 15/892,665, filed on Feb. 9, 2018, granted, now 11,285,075, issued on Mar. 29, 2022.
Application 15/892,665 is a continuation of application No. 14/317,573, filed on Jun. 27, 2014, granted, now 9,889,066, issued on Feb. 13, 2018.
Claims priority of provisional application 61/841,693, filed on Jul. 1, 2013.
This patent is subject to a terminal disclaimer.
Int. Cl. A61H 23/02 (2006.01)
CPC A61H 23/0254 (2013.01) [A61H 2201/0107 (2013.01); A61H 2201/0153 (2013.01); A61H 2201/0157 (2013.01); A61H 2201/1215 (2013.01); A61H 2201/1418 (2013.01); A61H 2201/149 (2013.01); A61H 2201/1664 (2013.01); A61H 2201/5005 (2013.01); A61H 2201/501 (2013.01); A61H 2201/5015 (2013.01); A61H 2201/5035 (2013.01); A61H 2201/5038 (2013.01); A61H 2201/5097 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A percussive massager comprising:
a housing;
a piston having a proximal end and a distal end, the distal end of the piston having a bore;
a motor operatively connected to the proximal end of the piston, wherein the motor is configured to cause the piston to reciprocate at a first speed;
a drive mechanism that controls a predetermined stroke length of the piston; and
a quick-connect system comprising the distal end of the piston and a first massaging head, wherein the quick-connect system is configured to have a proximal end of the first massaging head inserted into or removed from the bore while the piston reciprocates the predetermined stroke length at the first speed.
 
18. A method of assembling a percussive massager, the method comprising:
operatively connecting a motor to a proximal end of a piston, wherein the motor is configured to cause the piston to reciprocate at a first speed, wherein a distal end of the piston has a bore,
providing a drive mechanism configured to control a predetermined stroke length of the piston; and
providing a quick-connect system comprising the distal end of the piston and a first massaging head, wherein a proximal end of the first massaging head is configured to be inserted into or removed from the bore while the piston reciprocates the predetermined stroke length at the first speed.